CA2096440C - Method and apparatus for refillable stick dispenser - Google Patents
Method and apparatus for refillable stick dispenser Download PDFInfo
- Publication number
- CA2096440C CA2096440C CA002096440A CA2096440A CA2096440C CA 2096440 C CA2096440 C CA 2096440C CA 002096440 A CA002096440 A CA 002096440A CA 2096440 A CA2096440 A CA 2096440A CA 2096440 C CA2096440 C CA 2096440C
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- CA
- Canada
- Prior art keywords
- stick
- holder
- plunger
- bore
- moulding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
- A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
- A45D40/04—Casings wherein movement of the lipstick or like solid is a sliding movement effected by a screw
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
- A45D40/16—Refill sticks; Moulding devices for producing sticks
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Coating Apparatus (AREA)
- Pens And Brushes (AREA)
- Cosmetics (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Steroid Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
A refill cartridge for a stick product dispenser, for stick products including adhesive sticks, lipsticks, release agent sticks, shaving soap sticks, coloring sticks, and so forth, is provided by molding the stick product material to have a shape substantially the same as the internal shape of the associated dispenser casing or holder, and to fill the free internal volume of the holder. When the stick product originally within the dispenser is used, the refill cartridge is partially inserted into an open end of the empty dispenser holder, and the cartridge is either pushed or drawn into the dispenser, for refilling the same with the desired stick product, and permitting non-consumable portions of the stick product dispenser to be repeatedly reused via such refilling.
Description
aqmo-~ Pcr/~p This invention relates to a method for refilling a stick which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick and which consists of - a holder with a solid base and an opening at one end into which a stick rotatable about its longitudinal axis is fitted, the stick which extends over the entire longitudinal axis of the holder being formed by a screwthreaded spindle beyond one side of the base and by a hand-operated knurled nut beyond the other side of the base outside the holder, and of - a feed element which is nonjrotatably mounted in the holder, being designed for displacement longitudinally of the holder by means of the screwthreaded spindle engaging in a screwthreaded bore extending throughout the feed element to apply a preferably spreadable product mass accommodated in the holder, such as a deodorant stick, adhesive stick, shaving soap stick or colouring stick mass, and optionally of a closure cap designed to be pushed on over the upper edge of the holder, in which method for refilling the stick a moulding of the particular, preferably spreadable, product mass adapted to the internal volume - designed to accommodate the product mass - and internal configuration of the holder and forrned with a bore, preferably a blind hole, concentrically to the longitudinal axis to receive the screwthreaded spindle is inserted into the holder from the opening at the end thereof.
The present invention also relates to a process for the production of a refill cartridge for a stick which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick, comprising a holder which is optionally designed for closure by a cap, has an opening at at least one end and comprises a plunger designed for axial displacement over the length of the holder to apply a preferably spreadable product mass accommodated in ,~ ~~~o-~ ~Tl~~
The present invention also relates to a process for the production of a refill cartridge for a stick which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick, comprising a holder which is optionally designed for closure by a cap, has an opening at at least one end and comprises a plunger designed for axial displacement over the length of the holder to apply a preferably spreadable product mass accommodated in ,~ ~~~o-~ ~Tl~~
the holder, such as a deodorant, adhesive, lipstick, release agent, shaving soap or colouring stick mass, the plunger optionally being placed at the bottom of a mould and the product mass being subsequently introduced into the mould adapted to the internal volume - designed to accommodate the particular product mass - and internal configuration of the holder and optionally into the plunger, and after solidification, being ejected from the mould as a moulding of preferably spreadable product mass which forms the major part of the refill cartridge.
Finally, the present invention relates to a system consisting of a stick and a refill cartridge for the stick which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick, the stick comprising a holder with a solid base and an opening at one end into which a stick rotatable about its longitudinal axis is fitted, the stick which extends over the entire longitudinal axis of the holder being formed by a screwthreaded spindle beyond one side of the base and by a hand-operated knurled nut beyond the other side of the base outside the holder, and - a feed element which is non-rotatably mounted in the holder, being designed for displacement longitudinally of the holder by means of the screwthreaded spindle engaging in a screwthreaded bore extending throughout the feed element to apply a preferably spreadable product mass accommodated in the holder, such as a deodorant stick, adhesive stick, lipstick, release agent stick, shaving soap stick or colouring stick mass, and optionally - a closure cap designed to be pushed on over the upper edge of the holder, and the refill cartridge comprising a moulding of the particular, preferably spreadable, product mass adapted to the internal volume - designed to accommodate the product mass - and internal configuration of the holder and formed with a bore, preferably a blind hole, concentrically to the longitudinal ,D91~o-2 PcTlt~
Finally, the present invention relates to a system consisting of a stick and a refill cartridge for the stick which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick, the stick comprising a holder with a solid base and an opening at one end into which a stick rotatable about its longitudinal axis is fitted, the stick which extends over the entire longitudinal axis of the holder being formed by a screwthreaded spindle beyond one side of the base and by a hand-operated knurled nut beyond the other side of the base outside the holder, and - a feed element which is non-rotatably mounted in the holder, being designed for displacement longitudinally of the holder by means of the screwthreaded spindle engaging in a screwthreaded bore extending throughout the feed element to apply a preferably spreadable product mass accommodated in the holder, such as a deodorant stick, adhesive stick, lipstick, release agent stick, shaving soap stick or colouring stick mass, and optionally - a closure cap designed to be pushed on over the upper edge of the holder, and the refill cartridge comprising a moulding of the particular, preferably spreadable, product mass adapted to the internal volume - designed to accommodate the product mass - and internal configuration of the holder and formed with a bore, preferably a blind hole, concentrically to the longitudinal ,D91~o-2 PcTlt~
axis to receive the screwthreaded spindle.
There are already various known sticks which release product by application to a surface, such as deodorant, adhesive, lipstick, release agent, shaving soap or colouring sticks, comprising a holder which is optionally de-signed for closure by a cap, has an opening at at least one end and comprises a plunger designed for axial displacement over the length of the holder to apply a preferably spreadable product mass accommodated in the holder. These known sticks have the disadvantage that they are generally not refillable.
For example, the adhesive sticks known from the prior art have to be discarded after the adhesive has been used up or has dried out although, in general, the adhesive stick mechanism is still in perfect working order after the original adhesive filling has been used up. Accordingly, known sticks and adhesive sticks, as plastic waste, are a significant source of environmental pollution. In addition, new material (plastic) always has to be used in the production of a new stick which, besides the production costs, adversely affects the manufacturing price. Finally, the consumer is also forced to buy a completely new stick every time.
A process of the type mentioned at the beginning for refilling a stick which releases product by application to a surface and a refill cartridge of the type mentioned at the beginning are known from GB-A-246,657. This document discloses a shaving soap dispenser from which the shaving soap is dispensed by a spindle-driven disc and which is designed to be refilled with a stick of shaving soap formed with a blind bore. To refill the dispenser, the stick of shaving soap with the blind bore is pushed via the spindle into the housing of the dispenser. This method of refilling is not suitable for sticks of a soft and spreadable product, for example adhesive sticks, because when the product is pushed in - which is done by hand - it is in danger of being deformed or even breaking so that it can no longer be introduced cleanly and exactly in the stick holder.
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There are already various known sticks which release product by application to a surface, such as deodorant, adhesive, lipstick, release agent, shaving soap or colouring sticks, comprising a holder which is optionally de-signed for closure by a cap, has an opening at at least one end and comprises a plunger designed for axial displacement over the length of the holder to apply a preferably spreadable product mass accommodated in the holder. These known sticks have the disadvantage that they are generally not refillable.
For example, the adhesive sticks known from the prior art have to be discarded after the adhesive has been used up or has dried out although, in general, the adhesive stick mechanism is still in perfect working order after the original adhesive filling has been used up. Accordingly, known sticks and adhesive sticks, as plastic waste, are a significant source of environmental pollution. In addition, new material (plastic) always has to be used in the production of a new stick which, besides the production costs, adversely affects the manufacturing price. Finally, the consumer is also forced to buy a completely new stick every time.
A process of the type mentioned at the beginning for refilling a stick which releases product by application to a surface and a refill cartridge of the type mentioned at the beginning are known from GB-A-246,657. This document discloses a shaving soap dispenser from which the shaving soap is dispensed by a spindle-driven disc and which is designed to be refilled with a stick of shaving soap formed with a blind bore. To refill the dispenser, the stick of shaving soap with the blind bore is pushed via the spindle into the housing of the dispenser. This method of refilling is not suitable for sticks of a soft and spreadable product, for example adhesive sticks, because when the product is pushed in - which is done by hand - it is in danger of being deformed or even breaking so that it can no longer be introduced cleanly and exactly in the stick holder.
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A process of the type mentioned at the beginning for making a refill cartridge for a stick which releases product by application to a surface is known from US-A-2,753,991. This document describes the production of a lipstick refill in which lipstick compound is poured into a mould and a bowl-s shaped plunger arranged therein and, after solidification of the compound, the lipstick moulding with the plunger at its end is introduced for refilling into a lipstick holder. For protection, the lipstick moulding is surrounded by a tube which is stripped off as the moulding is drawn into the lipstick holder.
Lipstick refill cartridges of this type are also known from DE-B-1 003 411 and FR A-1 205 370. These known refill cartridges are not suitable for refilling sticks with a screwthreaded spindle because, on the one hand, they disclose a cup-shaped plunger with a continuous base into which a screwthreaded spindle cannot be inserted and because, on the other hand, they do not disclose any measures to prevent the refill from breaking off, splitting open or swelling as the screwthreaded spindle penetrates into the refill compounds during the refilling process when the compound is drawn into a tube-like stick holder.
The problem addressed by the present invention was to provide an improved possibility for refilling sticks comprising a screwthreaded spindle with product mass.
In a refilling method of the type mentioned at the beginning, the solution provided by the invention is characterized in that the moulding with the bore or blind hole aligned to receive the screwthreaded spindle is introduced into the holder and, by actuation of the knurled nut, the moulding is drawn in up to the base of the holder, the diameter of the bore or blind hole being gauged in such a way that the screwthreaded spindle cuts slightly into the product mass on entering the bore or blind hole.
Because a moulding formed with a bore or blind hole is introduced into the holder during refilling, little, if any, product mass has to be displaced by the screwthreaded spindle during introduction of the moulding so that no volume into which the product mass could escape has to be provided in the .D9~~m-~T PcT/W
~.~3~..
stick or rather the holder for this purpose. In addition, no surplus volume of product mass escapes from the stick so that the stick is not soiled. The diameter of the bore or blind hole is gauged in such a way that the saewthreaded spindle cuts only slightly into the product mass on entering the 5 bore or blind hole, so that radial expansion of the moulding and displacement of the adhesive on introduction into the holder are largely avoided.
On the other hand, however, the fact that the screwthreaded spindle cuts slightly into the product mass means that a mechanical force is transmitted from the flanks of the screwthread to the product mass so that the product mass is automatically drawn.into the stick holder on actuation of the knurled nut. Accordingly, it is now no longer necessary, even in the case of sticks with a screwthreaded spindle, to introduce the product mass by hand into the holder so that the product mass is no longer in danger of being deformed or broken off.
In the embodiment of the invention described hereinafter of a moulding with a plunger at one end, the slight cutting of the screwthreaded spindle into the product mass supports the plunger-driven advance of the mass as it is drawn into the holder and counteracts separation of the product mass from the plunger.
Of particular advantage is the embodiment of the invention described hereinafter where the moulding is surrounded by a tube from which it is drawn into the holder.
Accordingly, the invention starts out from the basic concept of providing the user of a stick of the above-mentioned type with a moulding of the particular, preferably spreadable, product mass which is adapted to the internal volume - designed to accommodate the product mass - and internal configuration of the holder and which the user can draw into the holder of the stick from the opening at its end. After the original product filling has been used up, the consumer is thus able to refill the stick. The consumer no longer has to buy a complete new stick. Because the key, non-consumable l~s~lo-~2 P~Tl~~
s parts of a stick are reused, the amount of waste, typically plastic waste (because the sticks are normally made of plastic), is reduced. The consumption of plastic is also reduced because the manufacturer no longer has to market each product filling together with a stick containing the entire stick mechanism.
In one embodiment of the invention, refilling of the stick is facilitated by the fact that a tube with a moulding accommodated therein is fitted onto the holder and the moulding is then drawn into the holder, the tube being completely withdrawn from the moulding and, finally, removed. This prevents the product mass, which is soft aid plastic, particularly in the case of adhesive sticks, from being locally stripped at the front edge of the stick holder during refilling so that the stick is not soiled.
In another embodiment of the invention, convenient refilling without stripping of a soft and plastic mass during introduction of the moulding into the stick can also be obtained if the moulding is provided with a plunger. To this end, another embodiment of the invention is characterized in that the feed element is a cup-like plunger and in that, for refilling, the plunger of the stick is first removed from the product-free holder and a moulding comprising a plunger with a screwthreaded bore at one end is fitted with the saewthreaded bore onto the screwthreaded spindle and, by actuation of the knurled nut, the plunger is drawn with the product mass up the base of the holder.
Particularly convenient refilling of the stick is possible when the moulding of preferably spreadable product mass is surrounded by a tube and provided at one end with a plunger. To this end, another embodiment of the invention is characterized in that the plunger is introduced into the holder surrounded by the tube at its upper edge. Basically, the preferably spreadable product mass is filled into a tubular holder of which the base is formed by the plunger in such a way that the outer surface of the plunger is surrounded by the holder at its upper end. Now, if for example the ~ 9'I ~o- ~ PcTl«
7 '9-6~6~,3?3 saewthreaded bore of the plunger is screwed onto the screwthreaded spindle and if the plunger together with the product mass is drawn up to the base of the holder by rotation of the knurled nut, the tube is continuously withdrawn from the moulding at the same time so that, finally, it can be removed. The dimensions of the tube must be such that, as the plunger is screwed down, the front end of the tube impinges on the opposite end of the holder wall so that the tube is pushed off the moulding.
In a process for the production of a refill cartridge of the type mentioned at the beginning, the solution to the above-stated problem as provided by the invention is characterized in that a stick extending over at least part of the mould is placed in the bottom thereof concentrically to the longitudinal axis to form a bore or blind hole in the product mass, the diameter of the bore or blind hole being gauged in such a way that, when a refill cartridge is introduced into the holder of a stick with a screwthreaded spindle, the screwthreaded spindle enters the bore or blind hole and cuts slightly into the product mass on entering the bore or blind hole.
Accordingly, by a very simple process, the invention provides a refill cartridge which can be loaded into an empty stick so that the stick can be refilled by an equally simple procedure.
In order specifically to apply the plunger to the base of the mould and, if desired, to form a bore or a blind hole in the moulding during the production process, another embodiment of the process is characterized in that a stick extending over at least part of the mould is arranged on the bottom of the mould concentrically to the longitudinal axis to receive the screwthreaded bore of the plunger andlor to form a bore or a blind hole in the product mass.
Another embodiment of the production process according to the invention is characterized in that a plunger formed throughout with a central screwthreaded bore and receiving the stick in the screwthreaded bore is placed at the bottom of the mould. In this way, the plunger and the moulding of preferably spreadable product mass form a single unit which can ~ ~ ~ f0- s PcT/~ ~t ..
advantageously be drawn into the holder of a stick. More particularly, this reduces the danger of the plunger being separated from the product mass during introduction of the moulding.
To produce a refill cartridge in which the moulding of preferably spreadable product mass is surrounded by a tube, a particularly advantageous embodiment of the invention is characterized in that the mould is widened to accommodate a tube and, before the product mass is poured in, a tube is introduced into the mould with its outer surface adjoining the inner surface of the mould.
In another particularly advantageous embodiment of the production process according to the invention, the stick is an adhesive stick and the moulding consists of a soft and spreadable adhesive compound.
In a system consisting of a stick and a refill cartridge of the type mentioned at the beginning, the solution to the above-stated problem as provided by the invention is characterized in that the diameter of the bore or blind hole is gauged in such a way that, when a refill cartridge is introduced into the holder, the screwthreaded spindle cuts slightly into the product mass on entering the bore or blind hole. The moulding of preferably spreadable product mass can be fitted onto, and drawn into, the stick from the opening at the end of the holder. The stick can be refilled in this way. The stick does not have to be discarded after the original product filling has been exhausted.
To enable the refill cartridge to be introduced into sticks with a screwthreaded spindle without any danger of soiling of the stick holder, the moulding is formed with a bore or blind hole concentrically to its longitudinal axis.
To facilitate insertion of the refill cartridge into the stick holder, another embodiment of the invention is characterized in that the feed element is a cup-like plunger and in that, at its end, the moulding comprises a plunger formed throughout with a central screwthreaded bore.
To prevent air from being trapped in the stick holder during 1~9~90-~ P~Tl~u introduction of the refill cartridge into the holder, a further embodiment of the refill cartridge according to the invention is characterized in that the moulding is formed in its outer circumference with a longitudinal groove or notch.
As already mentioned in reference to the production process and the method for refilling a stick, refilling of the stick can also be facilitated if, in accordance with another embodiment, the moulding is arranged in a tube.
Another embodiment of the invention is a system which is characterized in that the tube has a length adapted to the free internal holder height of the stick, an internal diameter adapted to the internal diameter of the holder and a base serving as a plunger for the stick, the upper edge of the plunger being surrounded by the tube As mentioned above, this refill cartridge comprises a tube which surrounds the preferably spreadable product mass and of which the length substantially corresponds to the free internal height of the stick tube, but may even be only a fraction of the internal height of the stick holder. The tube has an adapted internal diameter in the same way as the stick holder so that the moulding can be drawn into the interior of the holder with simultaneous removal of the tube. To use the refill cartridge, that part of the plunger which is not covered by the tube is inserted into the holder to such an extent that, on rotation of the knurled nut, the screwthreaded spindle engages in the screwthreaded bore of the plunger. On further rotation of the knurled nut, the plunger is gradually drawn towards the base of the holder, the tip of the screwthreaded spindle -after passing through the screwthreaded bore in the moulding - drawing the product mass equally into the cylinder with simultaneous "cutting" of a screwthread. Rotation of the knurled nut is continued until the plunger reaches the base of the holder. In this position, the moulding has been fully withdrawn from the tube so that the tube may be removed. The refilled stick can now be closed by a closure cap at the open end of the holder, as known from the prior art. The refilling process may be repeated indefinitely because the plastic parts are not subjected to any sig-Dl~~o-~ PcTlta 8-66~~.Z~.
nificant wear when the knurled nut is rotated either to apply the particular product or to refill the holder.
To prevent the product mass from drying out on the side facing the plunger, the screwthreaded bore may be closed by a (thin) membrane 5 designed to be pierced by the screwthreaded spindle. The screwthreaded bore of the plunger preferably has a single or multiple screwthread.
In the same way as all the other parts, the screwthreaded spindle of the stick is made of inexpensive plastic, optionally having a certain flexibility.
To facilitate introduction of the spindle end into the screwthreaded bore of the 10 plunger of the refill cartridge, the base of the plunger is formed internally with a cone as an insertion aid.
The tube may also be closed at that end opposite the plunger to prevent the product mass from drying out. For example, it is possible in this embodiment to prefabricate the tube in the form of a cup and to fill this prefabricated cup with product mass before it is closed by the plunger on the open side of the cup.
So far as the dimensions of the tube are concerned, the only crucial factor is the internal diameter adapted to that of the holder. By contrast, the wall thickness of the tube may basically be selected as required, although to save material it should be at most equal to the wall thickness of the holder.
Similarly, the tube may basically be made of any material providing it remains rigid during withdrawal of the moulding of preferably spreadable product mass. The tube is preferably made of plastic or paperboard which may be coated. By contrast, the plunger should preferably consist of plastic.
To enable the moulding to be readily inserted into the holder, a central blind hole for the screwthreaded spindle may be provided along the axis of the moulding. This embodiment enables the holder and the tube to have the same internal diameter.
Instead of a blind hole, it is of course also possible to provide a bore extending over the entire longitudinal axis of the moulding.
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" ~~-~---To facilitate withdrawal of the moulding, the tube or rather the inner surface of the tube is preferably made slightly conical in shape, the conical taper towards that end opposite the plunger forming a cone angle of at most 3°.
In another embodiment of the invention, the tube is provided at one end with a sleeve which encircles the plunger at a distance and of which the internal diameter is such that the sleeve can be pushed on over the upper part of the outer surface of the holder. In addition, the sleeve has an inner annular stop surface for the front end of the holder Not only does this provide for safe fixing of the refill cartridge on the stick holder, it also -and above all - guarantees centring of the tube of the refill cartridge and the holder. The wall thicknesses of the holder and tube no longer have to be exactly adapted to one another.
The dimensions of the sleeve are preferably such that the free end of the sleeve is level with, or projects slightly beyond, the base of the plunger.
Looking in the axial direction, a sufficiently long annular space is thus created between the inner surface of the sleeve and the outer surface of the plunger.
In a first embodiment, the sleeve and the tube are made in one piece, more particularly by injection moulding, the cross-section then being widened radially at the junction between the tube and the sleeve to create an annular stop surface for the front of the cylinder.
Alternatively, however, the tube and the sleeve may be made in two parts joined together by a preferably annular snap-in connection.
In another embodiment of the invention, the plunger and the sleeve are joined to one another by several bridges which break when the plunger is drawn towards the base of the holder, i.e. act as artificially weakened points.
In this embodiment, the plunger and the sleeve may be made as a one-piece injection moulding, optionally together with the tube. Alternatively, the plunger and the sleeve may be joined together by a drop-in or snap-in connection designed to break when the plunger is drawn towards the base of D9l~o-~ Pct/c~t 12 E~:
the holder, for example by forming small drop-in noses or hooks or the like in the injection moulding process. These connections also separate from the sleeve after insertion of the screwthreaded spindle during the refill process.
The advantages mentioned above in connection with individual embodiments of the system, the refill method and the production process apply both to the processes and to the system or rather the refill cartridge, even if they are only mentioned in connection with one of the subjects of the invention.
The invention is described in more detail in the following with reference to the accompanying drawings, wherein:
Figure 1 is a side elevation of a refill cartridge.
Figure 2 is a plan view of another embodiment of a refill cartridge.
Figure 3 shows a moulding with part of a mould.
Figure 4 shows another embodiment of a refill cartridge.
Figures 5 and 6 are each side elevations, partly broken and in section, of an adhesive stick surmounted by a refill cartridge in another embodiment.
Figure 7 is a cross-section/side elevation of another embodiment of a refill cartridge.
The example described in the following relates to an adhesive stick.
Accordingly, the stick is termed an adhesive stick while the product mass is termed the adhesive mass.
Similarly, the product mass would be termed the deodorant stick mass in the case of a deodorant stick, the lipstick mass in the case of a lipstick, the release agent stick mass in the case of a release agent stick, the shaving soap stick mass in the case of a shaving soap stick and the colouring stick mass in the case of a colouring stick, i.e. generally the particular product mass which is preferably spreadable and plastic.
The refill cartridge globally denoted by the reference 1 in Fig. 1 consists of a cylindrical moulding 2 of plastic, spreadable adhesive mass 23.
In its three-dimensional form, the moulding 2 is so adapted to the internal ~J9~9B'~ PcTlW
volume - designed to accommodate the adhesive mass - and internal configuration of the holder that it can be introduced into the holder of the adhesive stick in the direction of the arrow 3 and drawn completely into the holder. One example of such a stick is described in the following with reference to Figs. 5 and 6. In its most simple form, the refill cartridge 1 is a smooth-surface cylindrical moulding 2.
Figure 2 is a plan view of a refill cartridge 1 a of which the cylindrical moulding 2 is provided on its outer circumference with a longitudinal groove or notch 4. Air is able to escape from the interior of the adhesive stick holder along this groove 4 when the moulding 2 is introduced into the holder.
Figure 3 shows a moulding 2 of spreadable adhesive mass 23 which is provided at one end with a plunger. Figure 3 shows the moulding 2 still in the mould 6 (partly shown) immediately after casting of the adhesive mass 23, which is still liquid during the production process, and its solidification.
Overall, the plunger is cup-shaped with a cylindrical projection 7 at its centre.
Annularly projecting collars 8 and 9 are formed on the inside of the plunger and the outside of the cylindrical projection 7. These collars ensure safe anchoring of the adhesive mass 23 in the cup-shaped plunger and prevent the plastic adhesive mass 23 from being torn or sheared off during introduction of the moulding into the holder of an adhesive stick.
Figure 4 shows another embodiment of a refill cartridge 1 c of which the moulding 2 of spreadable adhesive mass 23 comprises at one end a plunger 11 formed at its centre with a screwthreaded bore 10 extending over the entire length of the plunger 11. Like the plunger in Fig. 3, the plunger 11 is cup-shaped and is provided on its inside with annularly projecting collars 12.
A blind bore 13 is shown in the moulding 2 concentrically to its longitudinal axis.
The refill cartridges 1, 1 a and 1 c shown in Figs. 1 to 4 may be longitudinally surrounded (not shown) by a tube, as described in the following with reference to the embodiments of the refill cartridges 1 d and 1 e.
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The adhesive stick 14 shown in Figs. 5 and 6 is known in principle from the prior art. It consists of a holder 15 with a solid base 16 into which a stick rotatable about its longitudinal axis is fitted by means of a snap-in joint (not shown). The stick, which extends over the entire longitudinal axis of the holder, is formed by a screwthreaded spindle 17 beyond one side of the snap-in joint and by a hand-operated knurled nut 18 beyond the other side of the snap-in joint outside the holder 15. A plunger 19 is mounted in the holder for longitudinal displacement by means of the screwthreaded spindle 17.
Since the fitted refill cartridges 1 d are shown in Figs. 5 and 6, the closure cap 10 which is normally designed to be pushed on over the upper edge of the holder is not shown. It can be removably fixed to the outside of the holder by means of drop-in connections 20 or screwthreaded or snap-in joints.
In its base, the plunger 19 is formed with a screwthreaded bore 21 in which the screwthreaded spindle 17 is designed to engage. The plunger 19 15 forms the bottom part of the refill cartridge 1 d which otherwise consists of a tube 22 of which the lower rim encloses andlor surrounds the upper edge of the plunger. The upper end 22a of the tube may be closed to prevent the spreadable adhesive mass 23 from drying out. In addition, the plunger base of the refill cartridge 1 d to be introduced may have a breakable membrane 24 which Goses the screwthreaded bore 21. The cone 25 formed on the inside of the plunger base acts as an insertion aid. In addition, the plunger 19 is formed on its outer surface along its longitudinal axis with groove-like depressions 26 which widen triangularly towards the underneath of the plunger and which, in conjunction with corresponding ribs 32 on the inner surface of the holder, prevent the plunger 19 from rotating when the knurled nut 18 is turned.
Another alternative embodiment is shown in Fig. 7 where the main difference from the above-described refill cartridges 1, 1 a, 1 c and 1 d lies in the development and use of a sleeve 27. In the same way as the tube 22, the sleeve 27 is cylindrical in shape and is connected to the tube 22, for example - ~ 9 ~~o- T PcT/~!t by an annular snap-in joint 28. The sleeve 27 has such an internal diameter 29 that it can be pushed onto the outside of the holder 15 (see Figs. 5 and 6).
The holder 15 slips into the annular space 30 between the sleeve 27 and the plunger 19, the refill cartridge 1 a being securely fixed and centred in relation 5 to the adhesive stick 14.
In the present case, the sleeve 27 is pushed over the holder 15 until the face 15a (see Fig. 5) and the annular stop surface 27a are in contact with one another.
However, the sleeve 27 can also be made in one piece with the tube 10 22, in which case the inner radial cross-section is increased in the vicinity of the connection between the tube 22 and the sleeve 27 with formation of an annular face similar to the stop surface 27a.
The plunger 19 is joined to the sleeve 27 by radially extending bridges 31 which break during the refill process, i.e. when the plunger 19 is moved 15 towards the base 16 of the holder, so that the plunger is separated from the sleeve 27. Above all in the embodiment in which the tube 22 and the sleeve 27 are made in one piece, the plunger 19 may also be connected to the above-mentioned one-piece moulding 22, 27 by a releasable drop-in or snap-in connection. All parts may be injection mouldings which, if they are in one piece or are to be joined to one another, may even be produced in a single operation.
The cross-sectional geometry of the refs II cartridges 1, 1 a, 1 c, 1 d, 1 a must of course be adapted to that of the holder 15 of the adhesive stick 14;
for example, the adhesive stick could even be polygonal rather than cylin-drical.
The blind hole 13 is of such a diameter that, on entering the blind hole 13, the screwthreaded spindle 17 cuts only slightly into the adhesive mass 23 so that there is little, if any, radial expansion of the moulding 2 or displacement of the adhesive mass 23 on introduction into the holder 15.
To produce the mouldings 2 of the refill cartridges 1 and 1 a, the ~9~~e-1 PcT/W
adhesive mass which is still liquid during the production process is poured into moulds 6 which are adapted in shape to the internal volume - designed to accommodate the adhesive mass - and internal configuration of the holder 15. The moulds may be made of metal, plastic or silicone rubber. The moulds are preferably integrated into a cooling belt. The moulds pass through a cooling zone until the adhesive mass 23 has solidified and the moulding 2 has formed. To produce the refill cartridge 1 the mould used is a hollow cylinder with a solid base. To produce the refill cartridge 1 a, a longi-tudinally extending rib or a bridge projecting into the mould is additionally formed in the corresponding mould to-form the notch 4. To produce the refill cartridge 1 c, the plunger 11 is first introduced into the mould and the still liquid adhesive mass 23 is subsequently poured into the plunger 11 and the mould 6. A pin extending longitudinally over at least part of the mould is arranged beforehand on the bottom of the mould concentrically to the longitudinal axis to receive the screwthreaded bore 10 of the plunger 11 and to form the blind hole 13. The pin projects into the region of the moulding 2 over the length of the blind hole 13 which corresponds to the length over which the screwthreaded spindle 17 of the adhesive stick 14 is subsequently to penetrate into the moulding 2. In this case, too, the liquid adhesive mass 23 is poured into the mould after introduction of the plunger 11 into the mould and positioning of the screwthreaded bore 10 onto the central pin. After solidification, the refill cartridge 1 c is also ejected from its mould.
In cases where the refill cartridge or the adhesive moulding 2 is to be surrounded by a tube 22, the tube 22 is first introduced into the mould and, if desired, a plunger 11 or 19 is pushed through the tube 22 into the mould before the adhesive mass 23 is poured into the tube 22.
Refill cartridges with a tube 22 surrounding the moulding 2 are produced using moulds which, over part of their length, have a widening into which the particular tube 22 is to be positively fitted. The base of these moulds is slightly below the lower edge of these openings so that either an D 9 ~ yd- T P~rlc ~
inserted plunger or the inflowing adhesive mass can penetrate more deeply into the mould so that, in the finished refill cartridge, either adhesive or the plunger subsequently projects beyond the tube and the refill cartridge can be introduced with this region first into the holder of the adhesive stick to be refilled with adhesive.
In the case of multiple-part moulds which can be parted after solid~cation of the adhesive mass, it is also possible to provide on the base of the mould recesses or widenings into which the plungers 11 or 19 can be exactly fitted so that a projection is formed on the end of the plunger between the external diameter of the plunger and the external diameter of the particular moulding of spreadable adhesive mass. This reduces the danger of contact with the adhesive mass where the plunger is used as an insertion aid for manual insertion of the refill cartridge into the adhesive stick holder.
After their ejection from the particular moulds, the various refill cartridges may be packed in the usual way in films, paper or film/paper composites. Sealed-rim bags, thermoformed parts, mouldings of groundwood pulp or starch derivatives, for example, are also possible. Several refill cartridges may also be accommodated in a single pack from which they may be individually removed, for example by tearing or breaking off.
It is also possible to line the mould 6 with packaging material, for example plastic film, before it is filled with the adhesive mass 23. In this case, the packaging material acts as a separation aid and facilitates ejection of the solidified mass from the mould 6. An almost ready-packed refill cartridge is also obtained in this way. To this end, the packaging material is introduced before the adhesive mass 23 is poured into the mould 6 and before the optional introduction of plungers 11, 19 and/or the tube 22, optionally with the sleeve 27, preferably in such a way that it conforms closely to the inner surfaces of the mould.
To refill adhesive sticks, the packaging material surrounding the particular refill cartridge is first completely or partly removed.
~~s-1~ P
18 0~!~9~9-A packaging-free end of the refill cartridge, which is either a part of the moulding 2 or a plunger, is then applied to or inserted into the opening in the end of an adhesive stick holder 15 and the refill cartridge is subsequently drawn into the holder 15. The refill cartridge is always drawn in when the adhesive stick 14 has a screwthreaded spindle 17 of which the screwthreads engage in a screwthreaded bore of a plunger and/or a blind hole 13. Refilling of the adhesive stick 14 shown in Figs. 5 and 6 is described by way of example in the following. The refill cartridge 1 d is first pushed gently with the plunger 19 into the holder 15 until the end 17a of the screwthreaded spindle comes into contact with the membrane 24. With a slight jerk, optionally accompanied by rotation of the knurled nut 18, the membrane 24 is pierced and the plunger 19 is pushed downwards until the screwthread of the ' scxewthreaded spindle 17 engages in the screwthreaded bore 21. Through continued rotation of the knurled nut 18, the plunger 19 is drawn further downwards until the front face 22b on the rim side comes into contact with the opposite front face 15a of the holder 15. With continued rotation of the screwthreaded spindle 17 through rotation of the knurled nut 18, the plunger 19 is drawn continuously downwards, the screwthreaded spindle 17 simultaneously cutting a thread in the blind hole 13 of the adhesive mass 23 and pulling the moulding 2 uniformly downwards. The position of the tube 22 relative to the holder 15 remains unchanged so that, finally, the column of adhesive 23 is completely removed from the tube 22. Since the length of the tube is adapted to the internal height of the holder, the free end face of the adhesive mass is flush with the upper edge of the holder 15 so that the tube 22 can be removed completely empty. The adhesive stick 14 has been refilled and can be reused.
The other refill cartridges may also be similarly drawn into their respective adhesive stick holders in such a way that they are subsequently arranged flush with the front edge of the holder in the adhesive stick.
Lipstick refill cartridges of this type are also known from DE-B-1 003 411 and FR A-1 205 370. These known refill cartridges are not suitable for refilling sticks with a screwthreaded spindle because, on the one hand, they disclose a cup-shaped plunger with a continuous base into which a screwthreaded spindle cannot be inserted and because, on the other hand, they do not disclose any measures to prevent the refill from breaking off, splitting open or swelling as the screwthreaded spindle penetrates into the refill compounds during the refilling process when the compound is drawn into a tube-like stick holder.
The problem addressed by the present invention was to provide an improved possibility for refilling sticks comprising a screwthreaded spindle with product mass.
In a refilling method of the type mentioned at the beginning, the solution provided by the invention is characterized in that the moulding with the bore or blind hole aligned to receive the screwthreaded spindle is introduced into the holder and, by actuation of the knurled nut, the moulding is drawn in up to the base of the holder, the diameter of the bore or blind hole being gauged in such a way that the screwthreaded spindle cuts slightly into the product mass on entering the bore or blind hole.
Because a moulding formed with a bore or blind hole is introduced into the holder during refilling, little, if any, product mass has to be displaced by the screwthreaded spindle during introduction of the moulding so that no volume into which the product mass could escape has to be provided in the .D9~~m-~T PcT/W
~.~3~..
stick or rather the holder for this purpose. In addition, no surplus volume of product mass escapes from the stick so that the stick is not soiled. The diameter of the bore or blind hole is gauged in such a way that the saewthreaded spindle cuts only slightly into the product mass on entering the 5 bore or blind hole, so that radial expansion of the moulding and displacement of the adhesive on introduction into the holder are largely avoided.
On the other hand, however, the fact that the screwthreaded spindle cuts slightly into the product mass means that a mechanical force is transmitted from the flanks of the screwthread to the product mass so that the product mass is automatically drawn.into the stick holder on actuation of the knurled nut. Accordingly, it is now no longer necessary, even in the case of sticks with a screwthreaded spindle, to introduce the product mass by hand into the holder so that the product mass is no longer in danger of being deformed or broken off.
In the embodiment of the invention described hereinafter of a moulding with a plunger at one end, the slight cutting of the screwthreaded spindle into the product mass supports the plunger-driven advance of the mass as it is drawn into the holder and counteracts separation of the product mass from the plunger.
Of particular advantage is the embodiment of the invention described hereinafter where the moulding is surrounded by a tube from which it is drawn into the holder.
Accordingly, the invention starts out from the basic concept of providing the user of a stick of the above-mentioned type with a moulding of the particular, preferably spreadable, product mass which is adapted to the internal volume - designed to accommodate the product mass - and internal configuration of the holder and which the user can draw into the holder of the stick from the opening at its end. After the original product filling has been used up, the consumer is thus able to refill the stick. The consumer no longer has to buy a complete new stick. Because the key, non-consumable l~s~lo-~2 P~Tl~~
s parts of a stick are reused, the amount of waste, typically plastic waste (because the sticks are normally made of plastic), is reduced. The consumption of plastic is also reduced because the manufacturer no longer has to market each product filling together with a stick containing the entire stick mechanism.
In one embodiment of the invention, refilling of the stick is facilitated by the fact that a tube with a moulding accommodated therein is fitted onto the holder and the moulding is then drawn into the holder, the tube being completely withdrawn from the moulding and, finally, removed. This prevents the product mass, which is soft aid plastic, particularly in the case of adhesive sticks, from being locally stripped at the front edge of the stick holder during refilling so that the stick is not soiled.
In another embodiment of the invention, convenient refilling without stripping of a soft and plastic mass during introduction of the moulding into the stick can also be obtained if the moulding is provided with a plunger. To this end, another embodiment of the invention is characterized in that the feed element is a cup-like plunger and in that, for refilling, the plunger of the stick is first removed from the product-free holder and a moulding comprising a plunger with a screwthreaded bore at one end is fitted with the saewthreaded bore onto the screwthreaded spindle and, by actuation of the knurled nut, the plunger is drawn with the product mass up the base of the holder.
Particularly convenient refilling of the stick is possible when the moulding of preferably spreadable product mass is surrounded by a tube and provided at one end with a plunger. To this end, another embodiment of the invention is characterized in that the plunger is introduced into the holder surrounded by the tube at its upper edge. Basically, the preferably spreadable product mass is filled into a tubular holder of which the base is formed by the plunger in such a way that the outer surface of the plunger is surrounded by the holder at its upper end. Now, if for example the ~ 9'I ~o- ~ PcTl«
7 '9-6~6~,3?3 saewthreaded bore of the plunger is screwed onto the screwthreaded spindle and if the plunger together with the product mass is drawn up to the base of the holder by rotation of the knurled nut, the tube is continuously withdrawn from the moulding at the same time so that, finally, it can be removed. The dimensions of the tube must be such that, as the plunger is screwed down, the front end of the tube impinges on the opposite end of the holder wall so that the tube is pushed off the moulding.
In a process for the production of a refill cartridge of the type mentioned at the beginning, the solution to the above-stated problem as provided by the invention is characterized in that a stick extending over at least part of the mould is placed in the bottom thereof concentrically to the longitudinal axis to form a bore or blind hole in the product mass, the diameter of the bore or blind hole being gauged in such a way that, when a refill cartridge is introduced into the holder of a stick with a screwthreaded spindle, the screwthreaded spindle enters the bore or blind hole and cuts slightly into the product mass on entering the bore or blind hole.
Accordingly, by a very simple process, the invention provides a refill cartridge which can be loaded into an empty stick so that the stick can be refilled by an equally simple procedure.
In order specifically to apply the plunger to the base of the mould and, if desired, to form a bore or a blind hole in the moulding during the production process, another embodiment of the process is characterized in that a stick extending over at least part of the mould is arranged on the bottom of the mould concentrically to the longitudinal axis to receive the screwthreaded bore of the plunger andlor to form a bore or a blind hole in the product mass.
Another embodiment of the production process according to the invention is characterized in that a plunger formed throughout with a central screwthreaded bore and receiving the stick in the screwthreaded bore is placed at the bottom of the mould. In this way, the plunger and the moulding of preferably spreadable product mass form a single unit which can ~ ~ ~ f0- s PcT/~ ~t ..
advantageously be drawn into the holder of a stick. More particularly, this reduces the danger of the plunger being separated from the product mass during introduction of the moulding.
To produce a refill cartridge in which the moulding of preferably spreadable product mass is surrounded by a tube, a particularly advantageous embodiment of the invention is characterized in that the mould is widened to accommodate a tube and, before the product mass is poured in, a tube is introduced into the mould with its outer surface adjoining the inner surface of the mould.
In another particularly advantageous embodiment of the production process according to the invention, the stick is an adhesive stick and the moulding consists of a soft and spreadable adhesive compound.
In a system consisting of a stick and a refill cartridge of the type mentioned at the beginning, the solution to the above-stated problem as provided by the invention is characterized in that the diameter of the bore or blind hole is gauged in such a way that, when a refill cartridge is introduced into the holder, the screwthreaded spindle cuts slightly into the product mass on entering the bore or blind hole. The moulding of preferably spreadable product mass can be fitted onto, and drawn into, the stick from the opening at the end of the holder. The stick can be refilled in this way. The stick does not have to be discarded after the original product filling has been exhausted.
To enable the refill cartridge to be introduced into sticks with a screwthreaded spindle without any danger of soiling of the stick holder, the moulding is formed with a bore or blind hole concentrically to its longitudinal axis.
To facilitate insertion of the refill cartridge into the stick holder, another embodiment of the invention is characterized in that the feed element is a cup-like plunger and in that, at its end, the moulding comprises a plunger formed throughout with a central screwthreaded bore.
To prevent air from being trapped in the stick holder during 1~9~90-~ P~Tl~u introduction of the refill cartridge into the holder, a further embodiment of the refill cartridge according to the invention is characterized in that the moulding is formed in its outer circumference with a longitudinal groove or notch.
As already mentioned in reference to the production process and the method for refilling a stick, refilling of the stick can also be facilitated if, in accordance with another embodiment, the moulding is arranged in a tube.
Another embodiment of the invention is a system which is characterized in that the tube has a length adapted to the free internal holder height of the stick, an internal diameter adapted to the internal diameter of the holder and a base serving as a plunger for the stick, the upper edge of the plunger being surrounded by the tube As mentioned above, this refill cartridge comprises a tube which surrounds the preferably spreadable product mass and of which the length substantially corresponds to the free internal height of the stick tube, but may even be only a fraction of the internal height of the stick holder. The tube has an adapted internal diameter in the same way as the stick holder so that the moulding can be drawn into the interior of the holder with simultaneous removal of the tube. To use the refill cartridge, that part of the plunger which is not covered by the tube is inserted into the holder to such an extent that, on rotation of the knurled nut, the screwthreaded spindle engages in the screwthreaded bore of the plunger. On further rotation of the knurled nut, the plunger is gradually drawn towards the base of the holder, the tip of the screwthreaded spindle -after passing through the screwthreaded bore in the moulding - drawing the product mass equally into the cylinder with simultaneous "cutting" of a screwthread. Rotation of the knurled nut is continued until the plunger reaches the base of the holder. In this position, the moulding has been fully withdrawn from the tube so that the tube may be removed. The refilled stick can now be closed by a closure cap at the open end of the holder, as known from the prior art. The refilling process may be repeated indefinitely because the plastic parts are not subjected to any sig-Dl~~o-~ PcTlta 8-66~~.Z~.
nificant wear when the knurled nut is rotated either to apply the particular product or to refill the holder.
To prevent the product mass from drying out on the side facing the plunger, the screwthreaded bore may be closed by a (thin) membrane 5 designed to be pierced by the screwthreaded spindle. The screwthreaded bore of the plunger preferably has a single or multiple screwthread.
In the same way as all the other parts, the screwthreaded spindle of the stick is made of inexpensive plastic, optionally having a certain flexibility.
To facilitate introduction of the spindle end into the screwthreaded bore of the 10 plunger of the refill cartridge, the base of the plunger is formed internally with a cone as an insertion aid.
The tube may also be closed at that end opposite the plunger to prevent the product mass from drying out. For example, it is possible in this embodiment to prefabricate the tube in the form of a cup and to fill this prefabricated cup with product mass before it is closed by the plunger on the open side of the cup.
So far as the dimensions of the tube are concerned, the only crucial factor is the internal diameter adapted to that of the holder. By contrast, the wall thickness of the tube may basically be selected as required, although to save material it should be at most equal to the wall thickness of the holder.
Similarly, the tube may basically be made of any material providing it remains rigid during withdrawal of the moulding of preferably spreadable product mass. The tube is preferably made of plastic or paperboard which may be coated. By contrast, the plunger should preferably consist of plastic.
To enable the moulding to be readily inserted into the holder, a central blind hole for the screwthreaded spindle may be provided along the axis of the moulding. This embodiment enables the holder and the tube to have the same internal diameter.
Instead of a blind hole, it is of course also possible to provide a bore extending over the entire longitudinal axis of the moulding.
~ 9~9e -~ Purl<~
" ~~-~---To facilitate withdrawal of the moulding, the tube or rather the inner surface of the tube is preferably made slightly conical in shape, the conical taper towards that end opposite the plunger forming a cone angle of at most 3°.
In another embodiment of the invention, the tube is provided at one end with a sleeve which encircles the plunger at a distance and of which the internal diameter is such that the sleeve can be pushed on over the upper part of the outer surface of the holder. In addition, the sleeve has an inner annular stop surface for the front end of the holder Not only does this provide for safe fixing of the refill cartridge on the stick holder, it also -and above all - guarantees centring of the tube of the refill cartridge and the holder. The wall thicknesses of the holder and tube no longer have to be exactly adapted to one another.
The dimensions of the sleeve are preferably such that the free end of the sleeve is level with, or projects slightly beyond, the base of the plunger.
Looking in the axial direction, a sufficiently long annular space is thus created between the inner surface of the sleeve and the outer surface of the plunger.
In a first embodiment, the sleeve and the tube are made in one piece, more particularly by injection moulding, the cross-section then being widened radially at the junction between the tube and the sleeve to create an annular stop surface for the front of the cylinder.
Alternatively, however, the tube and the sleeve may be made in two parts joined together by a preferably annular snap-in connection.
In another embodiment of the invention, the plunger and the sleeve are joined to one another by several bridges which break when the plunger is drawn towards the base of the holder, i.e. act as artificially weakened points.
In this embodiment, the plunger and the sleeve may be made as a one-piece injection moulding, optionally together with the tube. Alternatively, the plunger and the sleeve may be joined together by a drop-in or snap-in connection designed to break when the plunger is drawn towards the base of D9l~o-~ Pct/c~t 12 E~:
the holder, for example by forming small drop-in noses or hooks or the like in the injection moulding process. These connections also separate from the sleeve after insertion of the screwthreaded spindle during the refill process.
The advantages mentioned above in connection with individual embodiments of the system, the refill method and the production process apply both to the processes and to the system or rather the refill cartridge, even if they are only mentioned in connection with one of the subjects of the invention.
The invention is described in more detail in the following with reference to the accompanying drawings, wherein:
Figure 1 is a side elevation of a refill cartridge.
Figure 2 is a plan view of another embodiment of a refill cartridge.
Figure 3 shows a moulding with part of a mould.
Figure 4 shows another embodiment of a refill cartridge.
Figures 5 and 6 are each side elevations, partly broken and in section, of an adhesive stick surmounted by a refill cartridge in another embodiment.
Figure 7 is a cross-section/side elevation of another embodiment of a refill cartridge.
The example described in the following relates to an adhesive stick.
Accordingly, the stick is termed an adhesive stick while the product mass is termed the adhesive mass.
Similarly, the product mass would be termed the deodorant stick mass in the case of a deodorant stick, the lipstick mass in the case of a lipstick, the release agent stick mass in the case of a release agent stick, the shaving soap stick mass in the case of a shaving soap stick and the colouring stick mass in the case of a colouring stick, i.e. generally the particular product mass which is preferably spreadable and plastic.
The refill cartridge globally denoted by the reference 1 in Fig. 1 consists of a cylindrical moulding 2 of plastic, spreadable adhesive mass 23.
In its three-dimensional form, the moulding 2 is so adapted to the internal ~J9~9B'~ PcTlW
volume - designed to accommodate the adhesive mass - and internal configuration of the holder that it can be introduced into the holder of the adhesive stick in the direction of the arrow 3 and drawn completely into the holder. One example of such a stick is described in the following with reference to Figs. 5 and 6. In its most simple form, the refill cartridge 1 is a smooth-surface cylindrical moulding 2.
Figure 2 is a plan view of a refill cartridge 1 a of which the cylindrical moulding 2 is provided on its outer circumference with a longitudinal groove or notch 4. Air is able to escape from the interior of the adhesive stick holder along this groove 4 when the moulding 2 is introduced into the holder.
Figure 3 shows a moulding 2 of spreadable adhesive mass 23 which is provided at one end with a plunger. Figure 3 shows the moulding 2 still in the mould 6 (partly shown) immediately after casting of the adhesive mass 23, which is still liquid during the production process, and its solidification.
Overall, the plunger is cup-shaped with a cylindrical projection 7 at its centre.
Annularly projecting collars 8 and 9 are formed on the inside of the plunger and the outside of the cylindrical projection 7. These collars ensure safe anchoring of the adhesive mass 23 in the cup-shaped plunger and prevent the plastic adhesive mass 23 from being torn or sheared off during introduction of the moulding into the holder of an adhesive stick.
Figure 4 shows another embodiment of a refill cartridge 1 c of which the moulding 2 of spreadable adhesive mass 23 comprises at one end a plunger 11 formed at its centre with a screwthreaded bore 10 extending over the entire length of the plunger 11. Like the plunger in Fig. 3, the plunger 11 is cup-shaped and is provided on its inside with annularly projecting collars 12.
A blind bore 13 is shown in the moulding 2 concentrically to its longitudinal axis.
The refill cartridges 1, 1 a and 1 c shown in Figs. 1 to 4 may be longitudinally surrounded (not shown) by a tube, as described in the following with reference to the embodiments of the refill cartridges 1 d and 1 e.
~s~9e- 11 PctlW
The adhesive stick 14 shown in Figs. 5 and 6 is known in principle from the prior art. It consists of a holder 15 with a solid base 16 into which a stick rotatable about its longitudinal axis is fitted by means of a snap-in joint (not shown). The stick, which extends over the entire longitudinal axis of the holder, is formed by a screwthreaded spindle 17 beyond one side of the snap-in joint and by a hand-operated knurled nut 18 beyond the other side of the snap-in joint outside the holder 15. A plunger 19 is mounted in the holder for longitudinal displacement by means of the screwthreaded spindle 17.
Since the fitted refill cartridges 1 d are shown in Figs. 5 and 6, the closure cap 10 which is normally designed to be pushed on over the upper edge of the holder is not shown. It can be removably fixed to the outside of the holder by means of drop-in connections 20 or screwthreaded or snap-in joints.
In its base, the plunger 19 is formed with a screwthreaded bore 21 in which the screwthreaded spindle 17 is designed to engage. The plunger 19 15 forms the bottom part of the refill cartridge 1 d which otherwise consists of a tube 22 of which the lower rim encloses andlor surrounds the upper edge of the plunger. The upper end 22a of the tube may be closed to prevent the spreadable adhesive mass 23 from drying out. In addition, the plunger base of the refill cartridge 1 d to be introduced may have a breakable membrane 24 which Goses the screwthreaded bore 21. The cone 25 formed on the inside of the plunger base acts as an insertion aid. In addition, the plunger 19 is formed on its outer surface along its longitudinal axis with groove-like depressions 26 which widen triangularly towards the underneath of the plunger and which, in conjunction with corresponding ribs 32 on the inner surface of the holder, prevent the plunger 19 from rotating when the knurled nut 18 is turned.
Another alternative embodiment is shown in Fig. 7 where the main difference from the above-described refill cartridges 1, 1 a, 1 c and 1 d lies in the development and use of a sleeve 27. In the same way as the tube 22, the sleeve 27 is cylindrical in shape and is connected to the tube 22, for example - ~ 9 ~~o- T PcT/~!t by an annular snap-in joint 28. The sleeve 27 has such an internal diameter 29 that it can be pushed onto the outside of the holder 15 (see Figs. 5 and 6).
The holder 15 slips into the annular space 30 between the sleeve 27 and the plunger 19, the refill cartridge 1 a being securely fixed and centred in relation 5 to the adhesive stick 14.
In the present case, the sleeve 27 is pushed over the holder 15 until the face 15a (see Fig. 5) and the annular stop surface 27a are in contact with one another.
However, the sleeve 27 can also be made in one piece with the tube 10 22, in which case the inner radial cross-section is increased in the vicinity of the connection between the tube 22 and the sleeve 27 with formation of an annular face similar to the stop surface 27a.
The plunger 19 is joined to the sleeve 27 by radially extending bridges 31 which break during the refill process, i.e. when the plunger 19 is moved 15 towards the base 16 of the holder, so that the plunger is separated from the sleeve 27. Above all in the embodiment in which the tube 22 and the sleeve 27 are made in one piece, the plunger 19 may also be connected to the above-mentioned one-piece moulding 22, 27 by a releasable drop-in or snap-in connection. All parts may be injection mouldings which, if they are in one piece or are to be joined to one another, may even be produced in a single operation.
The cross-sectional geometry of the refs II cartridges 1, 1 a, 1 c, 1 d, 1 a must of course be adapted to that of the holder 15 of the adhesive stick 14;
for example, the adhesive stick could even be polygonal rather than cylin-drical.
The blind hole 13 is of such a diameter that, on entering the blind hole 13, the screwthreaded spindle 17 cuts only slightly into the adhesive mass 23 so that there is little, if any, radial expansion of the moulding 2 or displacement of the adhesive mass 23 on introduction into the holder 15.
To produce the mouldings 2 of the refill cartridges 1 and 1 a, the ~9~~e-1 PcT/W
adhesive mass which is still liquid during the production process is poured into moulds 6 which are adapted in shape to the internal volume - designed to accommodate the adhesive mass - and internal configuration of the holder 15. The moulds may be made of metal, plastic or silicone rubber. The moulds are preferably integrated into a cooling belt. The moulds pass through a cooling zone until the adhesive mass 23 has solidified and the moulding 2 has formed. To produce the refill cartridge 1 the mould used is a hollow cylinder with a solid base. To produce the refill cartridge 1 a, a longi-tudinally extending rib or a bridge projecting into the mould is additionally formed in the corresponding mould to-form the notch 4. To produce the refill cartridge 1 c, the plunger 11 is first introduced into the mould and the still liquid adhesive mass 23 is subsequently poured into the plunger 11 and the mould 6. A pin extending longitudinally over at least part of the mould is arranged beforehand on the bottom of the mould concentrically to the longitudinal axis to receive the screwthreaded bore 10 of the plunger 11 and to form the blind hole 13. The pin projects into the region of the moulding 2 over the length of the blind hole 13 which corresponds to the length over which the screwthreaded spindle 17 of the adhesive stick 14 is subsequently to penetrate into the moulding 2. In this case, too, the liquid adhesive mass 23 is poured into the mould after introduction of the plunger 11 into the mould and positioning of the screwthreaded bore 10 onto the central pin. After solidification, the refill cartridge 1 c is also ejected from its mould.
In cases where the refill cartridge or the adhesive moulding 2 is to be surrounded by a tube 22, the tube 22 is first introduced into the mould and, if desired, a plunger 11 or 19 is pushed through the tube 22 into the mould before the adhesive mass 23 is poured into the tube 22.
Refill cartridges with a tube 22 surrounding the moulding 2 are produced using moulds which, over part of their length, have a widening into which the particular tube 22 is to be positively fitted. The base of these moulds is slightly below the lower edge of these openings so that either an D 9 ~ yd- T P~rlc ~
inserted plunger or the inflowing adhesive mass can penetrate more deeply into the mould so that, in the finished refill cartridge, either adhesive or the plunger subsequently projects beyond the tube and the refill cartridge can be introduced with this region first into the holder of the adhesive stick to be refilled with adhesive.
In the case of multiple-part moulds which can be parted after solid~cation of the adhesive mass, it is also possible to provide on the base of the mould recesses or widenings into which the plungers 11 or 19 can be exactly fitted so that a projection is formed on the end of the plunger between the external diameter of the plunger and the external diameter of the particular moulding of spreadable adhesive mass. This reduces the danger of contact with the adhesive mass where the plunger is used as an insertion aid for manual insertion of the refill cartridge into the adhesive stick holder.
After their ejection from the particular moulds, the various refill cartridges may be packed in the usual way in films, paper or film/paper composites. Sealed-rim bags, thermoformed parts, mouldings of groundwood pulp or starch derivatives, for example, are also possible. Several refill cartridges may also be accommodated in a single pack from which they may be individually removed, for example by tearing or breaking off.
It is also possible to line the mould 6 with packaging material, for example plastic film, before it is filled with the adhesive mass 23. In this case, the packaging material acts as a separation aid and facilitates ejection of the solidified mass from the mould 6. An almost ready-packed refill cartridge is also obtained in this way. To this end, the packaging material is introduced before the adhesive mass 23 is poured into the mould 6 and before the optional introduction of plungers 11, 19 and/or the tube 22, optionally with the sleeve 27, preferably in such a way that it conforms closely to the inner surfaces of the mould.
To refill adhesive sticks, the packaging material surrounding the particular refill cartridge is first completely or partly removed.
~~s-1~ P
18 0~!~9~9-A packaging-free end of the refill cartridge, which is either a part of the moulding 2 or a plunger, is then applied to or inserted into the opening in the end of an adhesive stick holder 15 and the refill cartridge is subsequently drawn into the holder 15. The refill cartridge is always drawn in when the adhesive stick 14 has a screwthreaded spindle 17 of which the screwthreads engage in a screwthreaded bore of a plunger and/or a blind hole 13. Refilling of the adhesive stick 14 shown in Figs. 5 and 6 is described by way of example in the following. The refill cartridge 1 d is first pushed gently with the plunger 19 into the holder 15 until the end 17a of the screwthreaded spindle comes into contact with the membrane 24. With a slight jerk, optionally accompanied by rotation of the knurled nut 18, the membrane 24 is pierced and the plunger 19 is pushed downwards until the screwthread of the ' scxewthreaded spindle 17 engages in the screwthreaded bore 21. Through continued rotation of the knurled nut 18, the plunger 19 is drawn further downwards until the front face 22b on the rim side comes into contact with the opposite front face 15a of the holder 15. With continued rotation of the screwthreaded spindle 17 through rotation of the knurled nut 18, the plunger 19 is drawn continuously downwards, the screwthreaded spindle 17 simultaneously cutting a thread in the blind hole 13 of the adhesive mass 23 and pulling the moulding 2 uniformly downwards. The position of the tube 22 relative to the holder 15 remains unchanged so that, finally, the column of adhesive 23 is completely removed from the tube 22. Since the length of the tube is adapted to the internal height of the holder, the free end face of the adhesive mass is flush with the upper edge of the holder 15 so that the tube 22 can be removed completely empty. The adhesive stick 14 has been refilled and can be reused.
The other refill cartridges may also be similarly drawn into their respective adhesive stick holders in such a way that they are subsequently arranged flush with the front edge of the holder in the adhesive stick.
Claims (28)
1. A method for refilling a stick (14) which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick and which consists of - a holder (15) with a solid base (16) and an opening at one end into which a stick rotatable about its longitudinal axis is fitted, the stick which extends over the entire longitudinal axis of the holder being formed by a screwthreaded spindle (17) beyond one side of the base (16) and by a hand-operated knurled nut (18) beyond the other side of the base (16) outside the holder (15), and of - a feed element which is non-rotatably mounted in the holder (15), being designed for displacement longitudinally of the holder by means of the screwthreaded spindle (17) engaging in a screwthreaded bore (10,21) extending throughout the feed element to apply a preferably spreadable product mass (23) accommodated in the holder (15), such as a deodorant stick, adhesive stick, lipstick, release agent stick, shaving soap stick or colouring stick mass, and optionally of - a closure cap designed to be pushed on over the upper edge of the holder, in which method for refilling the stick (14) a moulding (2) of the particular, preferably spreadable, product mass (23) adapted to the internal volume -designed to accommodate the product mass - and internal configuration of the holder (15) and formed with a bore, preferably a blind hole (13), concen-trically to the longitudinal axis to receive the screwthreaded spindle (17) is inserted into the holder (15) from the opening at the end thereof, characterized in that the moulding (2) with the bore or blind hole (13) aligned to receive the screwthreaded spindle (17) is introduced into the holder (15) and, by actuation of the knurled nut (18), the moulding (2) is drawn in up to the base (16) of the holder, the diameter of the bore or blind hole (13) being gauged in such a way that the screwthreaded spindle (17) cuts slightly into the product mass (23) on entering the bore or blind hole (13).
2. A method as claimed in claim 1, characterized in that a tube (22) with a moulding (2) accommodated therein is fitted onto the holder (15) and the moulding (2) is then drawn into the holder (15), the tube (22) being completely withdrawn from the moulding (2) and, finally, removed.
3. A method as claimed in claim 1 or 2, characterized in that the feed element is a cup-like plunger (11,19) and in that, for refilling, the plunger (11,19) of the stick (14) is first removed from the product-free holder (15) and a moulding (2) comprising a plunger (11,19) with a screwthreaded bore (10,21) at one end is fitted with the screwthreaded bore (10,21) onto the screwthreaded spindle (17) and, by actuation of the knurled nut (18), the plunger (11,19) is drawn with the product mass (23) up the base (16) of the holder.
4. A method as claimed in claim 3, characterized in that the plunger (11,19) is introduced into the holder (15) surrounded by the tube (22) at its upper edge (19a).
5. A process for the production of a refill cartridge (1,1a,1c,1d,1e) for a stick (14) which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick, comprising a holder (15) which is optionally designed for closure by a cap, has an opening at at least one end and comprises a plunger (11,19) designed for axial displacement over the length of the holder (15) to apply a preferably spreadable product mass accommodated in the holder (15), such as a deodorant, adhesive, lipstick, release agent, shaving soap or colouring stick mass, the plunger (11,19) optionally being placed at the bottom of a mould and the product mass (23) being subsequently introduced into the mould (6) adapted to the internal volume - designed to accommodate the particular product mass - and internal configuration of the holder (15) and optionally into the plunger (11,19), and after solidification, being ejected from the mould (6) as a moulding (2) of preferably spreadable product mass (23) which forms the major part of the refill cartridge (1,1a,1c,1d,1e), characterized in that a stick extending over at least part of the mould (6) is placed in the bottom thereof concentrically to the longitudinal axis to form a bore or blind hole (13) in the product mass (23), the diameter of the bore or blind hole (13) being gauged in such a way that, when a refill cartridge (1,1a,1c,1d,1e) is introduced into the holder (15) of a stick (14) with a screwthreaded spindle (17), the screwthreaded spindle (17) enters the bore or blind hole (13) and cuts slightly into the product mass (23) on entering the bore or blind hole (13).
6. A process as claimed in claim 5, characterized in that a plunger (11,19) formed throughout with a central screwthreaded bore (10,21) and receiving the stick in the screwthreaded bore is placed at the bottom of the mould (6).
7. A process as claimed in claim 5 or 6, characterized in that the mould (6) is widened to accommodate a tube (22) and, before the product mass (23) is poured in, a tube (22) is introduced into the mould (6) with its outer surface adjoining the inner surface of the mould (6).
8. A process as claimed in any of claims 1 to 7, characterized in that the stick (14) is an adhesive stick and the moulding (2) consists of a soft and plastic spreadable adhesive (23).
9. A system consisting of a stick (14) and a refill cartridge (1,1a,1c,1d,1e) for the stick (14) which releases product by application to a surface, such as a deodorant stick, an adhesive stick, a lipstick, a release agent stick, a shaving soap stick or colouring stick, the stick (14) comprising - a holder (15) with a solid base (16) and an opening at one end into which a stick rotatable about its longitudinal axis is fitted, the stick which extends over the entire longitudinal axis of the holder being formed by a screwthreaded spindle (17) beyond one side of the base (16) and by a hand-operated knurled nut (18) beyond the other side of the base (16) outside the holder (15), and - a feed element which is non-rotatably mounted in the holder (15), being designed for displacement longitudinally of the holder by means of the screwthreaded spindle (17) engaging in a screwthreaded bore (10,21) extending throughout the feed element to apply a preferably spreadable product mass (23) accommodated in the holder (15), such as a deodorant stick, adhesive stick, lipstick, release agent stick, shaving soap stick or colouring stick mass, and optionally - a closure cap designed to be pushed on over the upper edge of the holder, and the refill cartridge (1,1a,1c,1d,1e) comprising a moulding (2) of the particular, preferably spreadable, product mass (23) adapted to the internal volume - designed to accommodate the product mass (23) - and internal configuration of the holder (15) and formed with a bore, preferably a blind hole (13), concentrically to the longitudinal axis to receive the screwthreaded spindle (17), characterized in that the diameter of the bore or blind hole (13) is gauged in such a way that, when a refill cartridge (1,1a,1c,1d,1e) is introduced into the holder (15), the screwthreaded spindle (17) cuts slightly into the product mass (23) on entering the bore or blind hole (13).
10. A system as claimed in claim 9, characterized in that the feed element is a cup-like plunger (11,19) and, at its end, the moulding (2) comprises a plunger (11,19) formed throughout with a central screwthreaded bore (10,21).
11. A system as claimed in claim 9 or 10, characterized in that the moulding (2) is formed in its outer circumference with a longitudinal groove or notch (4).
12. A system as claimed in any of claims 9 to 11, characterized in that the moulding (2) is arranged in a tube (22).
13. A system as claimed in claim 12, characterized in that the tube (22) has a length adapted to the free internal holder height of the stick (14), an internal diameter adapted to the internal diameter of the holder (15) and a base serving as a plunger (11,19) for the stick (14), the upper edge (19a) of the plunger being surrounded by the tube (22).
14. A system as claimed in any of claims 9 to 13, characterized in that the screwthreaded bore (10,21) is closed by a membrane (24) designed to be pierced by the screwthreaded spindle (17).
15. A system as claimed in any of claims 9 to 14, characterized in that the screwthreaded bore (10,21) has a single or multiple screwthread.
16. A system as claimed in any of claims 10 to 15, characterized in that the base of the plunger is formed internally with a cone (25) as an insertion aid for the spindle end (17a).
17. A system as claimed in any of claims 12 to 16, characterized in that the tube (22) is closed at its end (22a) opposite the plunger (10,19).
18. A system as claimed in any of claims 12 to 17, characterized in that the wall thickness of the tube (22) is equal to that of the holder (15).
19. A system as claimed in any of claims 10 to 18, characterized in that the tube (22) and/or the plunger (19) is/are made of paperboard or plastic.
20. A system as claimed in any of claims 12 to 19, characterized in that the tube (22) or rather the inner surface thereof is made slightly conical in shape, the conical taper towards that end opposite the plunger (11,19) forming a cone angle of at most 3°.
21. A system as claimed in any of claims 12 to 20, characterized in that, at one end, the tube (22) is connected to a sleeve (27) which annularly surrounds the plunger (19) at a distance, the internal diameter of the sleeve (27) being such that the sleeve (27) can be pushed on over the upper outer surface of the holder, and which comprises an annular stop surface (27a) for the front (15a) of the holder.
22. A system as claimed in claim 21, characterized in that the free end of the sleeve is level with, or projects slightly beyond, the base of the plunger.
23. A system as claimed in claim 21 or 22, characterized in that the holder (27) and the tube (22) are made in one piece.
24. A system as claimed in claim 21, characterized in that the sleeve (27) and the tube (22) are joined together by a preferably annular drop-in or snap-in connection.
25. A system as claimed in any of claims 21 to 24, characterized in that the plunger (19) is joined to the sleeve (27) by several bridges (31) which break when the plunger (19) is drawn towards the holder base (16).
26. A system as claimed in claim 25, characterized in that the plunger (19) and the sleeve (27) are injection-moulded in one piece.
27. A system as claimed in any of claims 21 to 24, characterized in that the plunger (19) and the sleeve (27) are joined together by drop-in or snap-in connections which are designed to release when the plunger (19) is drawn towards the holder base (16).
28. A system as claimed in one or more of claims 9 to 27, characterized in that the stick (14) is an adhesive stick and the moulding (2) consists of a soft and plastic spreadable adhesive (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002269124A CA2269124C (en) | 1990-11-15 | 1991-11-06 | Method and apparatus for refillable stick dispenser |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4036396.1 | 1990-11-15 | ||
| DE4036396 | 1990-11-15 | ||
| DE4112432 | 1991-04-16 | ||
| DEP4112432.4 | 1991-04-16 | ||
| DE4120969A DE4120969A1 (en) | 1990-11-15 | 1991-06-25 | Refill cartridge for pen case - consists of formed body of coating material, pushed into case |
| DEP4120969.9 | 1991-06-25 | ||
| PCT/EP1991/002098 WO1992008388A1 (en) | 1990-11-15 | 1991-11-06 | Stick refill |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002269124A Division CA2269124C (en) | 1990-11-15 | 1991-11-06 | Method and apparatus for refillable stick dispenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2096440A1 CA2096440A1 (en) | 1992-05-16 |
| CA2096440C true CA2096440C (en) | 2002-07-23 |
Family
ID=27201894
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002096440A Expired - Fee Related CA2096440C (en) | 1990-11-15 | 1991-11-06 | Method and apparatus for refillable stick dispenser |
| CA002269124A Expired - Fee Related CA2269124C (en) | 1990-11-15 | 1991-11-06 | Method and apparatus for refillable stick dispenser |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002269124A Expired - Fee Related CA2269124C (en) | 1990-11-15 | 1991-11-06 | Method and apparatus for refillable stick dispenser |
Country Status (9)
| Country | Link |
|---|---|
| EP (2) | EP0702913B1 (en) |
| JP (4) | JP3583126B2 (en) |
| AT (2) | ATE213395T1 (en) |
| CA (2) | CA2096440C (en) |
| DE (3) | DE9117141U1 (en) |
| DK (2) | DK0557323T3 (en) |
| ES (2) | ES2104729T3 (en) |
| GR (1) | GR3025366T3 (en) |
| WO (1) | WO1992008388A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021142540A1 (en) * | 2020-01-14 | 2021-07-22 | Siotal Inc. | Refillable dispenser and method associated therewith |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100339300B1 (en) * | 1994-04-27 | 2002-10-18 | 헨켈 코만디트게젤샤프트 아우프 악티엔 | Refillable container for delivering a spreading compound, in particular an adhesive compound |
| CA2237861A1 (en) * | 1998-02-20 | 1999-08-20 | Binney & Smith Inc. | Applicator for dispensing material |
| DE19954004A1 (en) * | 1999-11-10 | 2001-05-17 | Beiersdorf Ag | Block of adhesive, lip salve, deodorant, etc. is shaped like double concave lens in holder, rotating in housing |
| JP2002036790A (en) * | 2000-07-26 | 2002-02-06 | Tombow Pencil Co Ltd | Container for solid glue |
| JP2002113992A (en) * | 2000-10-11 | 2002-04-16 | Tombow Pencil Co Ltd | Slider for solid glue delivering container and solid starch delivering container equipped therewith |
| JP2003320794A (en) * | 2002-05-02 | 2003-11-11 | Tombow Pencil Co Ltd | Slider for solid paste delivery container |
| EP2001640A1 (en) | 2006-03-24 | 2008-12-17 | Koninklijke Philips Electronics N.V. | An instrument, a system and a container for refilling a device for personal care treatement, and a device for personal care treatement with such a container |
| DE202007010681U1 (en) * | 2007-08-01 | 2008-12-11 | H. & M. Gutberlet Gmbh | Product exchange unit for a base pen module, in particular a cosmetic pen, and a set of a product exchange unit and a plurality of base pen modules |
| KR101314266B1 (en) | 2011-10-17 | 2013-10-08 | 김준귀 | Stick Type of Case |
| US9630386B1 (en) * | 2015-10-16 | 2017-04-25 | Foxlink Image Technology Co., Ltd. | Automatic gluing mechanism and automatic gluing machine using the same |
| JP7191479B2 (en) * | 2019-04-24 | 2022-12-19 | 株式会社吉野工業所 | Feeding container |
| WO2022056258A1 (en) * | 2020-09-11 | 2022-03-17 | Eco.Logic Brands Inc. | Modular container with improved performance |
| CN114194635A (en) * | 2021-12-23 | 2022-03-18 | 山东颐工材料科技股份有限公司 | Propylene cyanide low-temperature storage tank for ABS high rubber powder production |
| WO2023147886A1 (en) | 2022-02-07 | 2023-08-10 | Amara Nihad | Device for dispensing a product |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB246657A (en) * | 1925-01-19 | 1926-02-04 | Charles Stewart Forbes | Improvements in or relating to receptacles or holders for shaving soap and the like |
| FR632125A (en) * | 1926-04-02 | 1928-01-04 | adjustable holder for shaving soap stick | |
| US1947738A (en) * | 1931-11-14 | 1934-02-20 | Scovill Manufacturing Co | Lip stick |
| US2753991A (en) * | 1951-02-17 | 1956-07-10 | Sherman Claudine Reine | Lipstick refill cartridge |
| GB726921A (en) * | 1952-04-25 | 1955-03-23 | Unilever Ltd | Improvements in containers for toilet articles in stick form |
| DE1003411B (en) * | 1953-12-11 | 1957-02-28 | Guglielmo Bompiani | Container for replacement lipsticks |
| FR1205370A (en) * | 1958-04-09 | 1960-02-02 | Improvement to lipstick stick cases | |
| US3217869A (en) * | 1963-08-14 | 1965-11-16 | Max Factor & Co | Lipstick cup locking device |
| FR2312420A1 (en) * | 1975-05-28 | 1976-12-24 | Lam Plan Sa | Lipstick type diamond paste distributor - with quarter turn graduation marks |
| US4602886A (en) * | 1983-12-28 | 1986-07-29 | Smit Adrianus J | Multi-color marking implement |
-
1991
- 1991-06-25 DE DE9117141U patent/DE9117141U1/en not_active Expired - Lifetime
- 1991-11-06 DK DK91919143.7T patent/DK0557323T3/en active
- 1991-11-06 ES ES91919143T patent/ES2104729T3/en not_active Expired - Lifetime
- 1991-11-06 AT AT95116099T patent/ATE213395T1/en not_active IP Right Cessation
- 1991-11-06 CA CA002096440A patent/CA2096440C/en not_active Expired - Fee Related
- 1991-11-06 DE DE59109227T patent/DE59109227D1/en not_active Expired - Fee Related
- 1991-11-06 DE DE59108831T patent/DE59108831D1/en not_active Expired - Fee Related
- 1991-11-06 EP EP95116099A patent/EP0702913B1/en not_active Expired - Lifetime
- 1991-11-06 DK DK95116099T patent/DK0702913T3/en active
- 1991-11-06 WO PCT/EP1991/002098 patent/WO1992008388A1/en active IP Right Grant
- 1991-11-06 CA CA002269124A patent/CA2269124C/en not_active Expired - Fee Related
- 1991-11-06 AT AT91919143T patent/ATE156977T1/en not_active IP Right Cessation
- 1991-11-06 JP JP51735591A patent/JP3583126B2/en not_active Expired - Fee Related
- 1991-11-06 ES ES95116099T patent/ES2172546T3/en not_active Expired - Lifetime
- 1991-11-06 EP EP91919143A patent/EP0557323B1/en not_active Expired - Lifetime
-
1997
- 1997-11-12 GR GR970403008T patent/GR3025366T3/en unknown
-
1999
- 1999-04-26 JP JP11817199A patent/JP3364447B2/en not_active Expired - Fee Related
-
2002
- 2002-10-28 JP JP2002312514A patent/JP3641262B2/en not_active Expired - Fee Related
-
2004
- 2004-10-13 JP JP2004299095A patent/JP2005096868A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021142540A1 (en) * | 2020-01-14 | 2021-07-22 | Siotal Inc. | Refillable dispenser and method associated therewith |
| US11937682B2 (en) | 2020-01-14 | 2024-03-26 | Siotal Inc. | Refillable dispenser and method associated therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003205979A (en) | 2003-07-22 |
| JPH06502372A (en) | 1994-03-17 |
| GR3025366T3 (en) | 1998-02-27 |
| JP3364447B2 (en) | 2003-01-08 |
| DE59108831D1 (en) | 1997-09-25 |
| DK0702913T3 (en) | 2002-06-03 |
| ES2172546T3 (en) | 2002-10-01 |
| ES2104729T3 (en) | 1997-10-16 |
| DK0557323T3 (en) | 1998-04-06 |
| JP2005096868A (en) | 2005-04-14 |
| EP0557323A1 (en) | 1993-09-01 |
| ATE156977T1 (en) | 1997-09-15 |
| EP0702913B1 (en) | 2002-02-20 |
| EP0702913A3 (en) | 1999-03-10 |
| JP3583126B2 (en) | 2004-10-27 |
| DE9117141U1 (en) | 1996-04-18 |
| ATE213395T1 (en) | 2002-03-15 |
| WO1992008388A1 (en) | 1992-05-29 |
| EP0702913A2 (en) | 1996-03-27 |
| JP3641262B2 (en) | 2005-04-20 |
| JP2000025853A (en) | 2000-01-25 |
| EP0557323B1 (en) | 1997-08-20 |
| CA2269124A1 (en) | 1992-05-16 |
| CA2096440A1 (en) | 1992-05-16 |
| DE59109227D1 (en) | 2002-03-28 |
| CA2269124C (en) | 2001-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |