NL9001463A - Container for preparation and consumption of beverages - has plunger with removable stem and lid designed to improve plunger insertion and removal - Google Patents

Container for preparation and consumption of beverages - has plunger with removable stem and lid designed to improve plunger insertion and removal Download PDF

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Publication number
NL9001463A
NL9001463A NL9001463A NL9001463A NL9001463A NL 9001463 A NL9001463 A NL 9001463A NL 9001463 A NL9001463 A NL 9001463A NL 9001463 A NL9001463 A NL 9001463A NL 9001463 A NL9001463 A NL 9001463A
Authority
NL
Netherlands
Prior art keywords
piston
characterized
device
operating stem
stem
Prior art date
Application number
NL9001463A
Other languages
Dutch (nl)
Original Assignee
Randwyck B V
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Randwyck B V filed Critical Randwyck B V
Priority to NL9001463 priority Critical
Priority to NL9001463A priority patent/NL9001463A/en
Publication of NL9001463A publication Critical patent/NL9001463A/en

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/18Apparatus in which ground coffee or tea-leaves are immersed in the hot liquid in the beverage container
    • A47J31/20Apparatus in which ground coffee or tea-leaves are immersed in the hot liquid in the beverage container having immersible, e.g. rotatable, filters

Abstract

The plunger piston (3) has a spring+loaded sealing skirt (7) and a removable stem (4) constructed with a cruciform key (8) at the lower end which is inserted into a corresp. key aperture (12) in the piston. By rotating, the stem key is held captive in the recess (10) under the piston slots. A beverage is made in the normal way and once the plunger is depressed the plunger stem is removed and the container is used for consumption purposes. Following consumption the stem is reinserted and the plunger piston is withdrawn into the container lid which is designed to compress the plunger skirt to provide radial clearance for ease of removal and insertion.

Description

Device for preparing a drink

The invention relates to a device for preparing a drink, such as tea or coffee, with a cup-shaped holder and a piston which can be moved up and down movable up and down in this holder, and which has an operating handle protruding from the holder at its top possession.

A known device of the above-mentioned type comprises a provision for making coffee. The cup-shaped container hereby has the shape of a jug, on the bottom of which coffee powder is applied. Hot water is then poured into the jug and the plunger is placed in the jug. The piston is lowered and the coffee formed flows upwards through the piston. The coffee grounds that have formed during the preparation of the coffee cannot pass through the plunger and remain separate from the prepared coffee. By pressing the piston firmly down using the operating handle, the coffee grounds can be compressed and a maximum amount of coffee can be prepared.

This known device has a number of drawbacks. The coffee prepared with this device should be poured from the jug into cups or the like. The operating handle protruding from the jug hereby forms a difficult obstacle.

The object of the invention is to provide a device of the type stated in the preamble, wherein these drawbacks are eliminated in a simple, yet effective manner.

To this end, the device according to the invention is characterized in that the operating stem is detachably connected to the piston. After the beverage has been prepared in the cup-shaped container, the operating stem is detached from the piston, the latter remaining in the container. The cup-shaped container can now be used directly as a cup for consuming the drink. The operating handle has been removed and is no longer an obstacle, and can even be used as a stirring rod.

In a favorable embodiment of the device according to the invention, the operating stem and the piston have connecting parts co-acting, such that the connection between the two is attachable or detachable by an underlying rotation between the operating stem and piston. In such an embodiment, the operation to be performed for detaching the actuating stem from the piston or reattaching it is extremely simple. The user only needs to rotate the operating stem and then remove it.

A constructional solution hereby provides an embodiment in which the operating stem has at its lower end at least one radially projecting cam, while the piston is provided with a recess receiving this cam, which has at least one inlet opening which opens into the surface of the piston and has an adjoining undercut groove extending parallel to the surface. When the radially protruding cam of the operating stem is in the undercut groove, the piston can be moved back and forth using the operating stem. After the operating stem has been rotated such that the protruding cam is in line with the entrance opening, the operating stem can be detached from the piston.

To enhance the stability and quality of the connection between the actuating stem and the piston, it is preferred that the actuating stem has four cross-projecting cams, while the recess in the piston has four entry openings and four undercut grooves.

It is also advantageous if the piston engages clampingly on the inner container wall at least in the vicinity of the bottom of the container. When the operating stem is released from the piston in such a position, the piston reliably maintains its position relative to the container. This prevents the piston from being able to move unintentionally with respect to the holder, or even becoming completely loose in an extreme case.

It is furthermore advantageous if the device is characterized by a lid which can be placed on the holder and which is provided with an opening for the operating stem and which is rotatable relative to the holder. This lid can have various functions. It is thus possible that it has an insulating function, for example for keeping hot drinks warm. It can also prevent external contamination of the drink prepared in the container.

A particular function of the lid is obtained in one embodiment, wherein the lid has piston-engaging means for reducing the outer circumference of the piston when the piston is received in the lid. In this way, the mounting of the piston in the holder can be simplified. Particularly when a piston is used, the outer circumference of which engages clampingly on the inner wall of the container, it can be problematic to install such a piston in the container. However, if the outer circumference of the piston can be temporarily reduced with the aid of the lid, it is easy to install the piston in the holder.

Structurally, an embodiment is preferred here, wherein the piston circumference consists of resilient lips, while the lid has an internal rim, which presses these lips inward. The rim can be formed in such a way that the cover retains the piston in the position in which the outer circumference of the piston has been reduced, without force having to be exerted on the operating stem. This further simplifies the arrangement of the piston in the holder.

The invention also relates to an assembly of piston and operating stem for use in a device according to the invention.

The invention is explained in more detail below with reference to the drawing, in which an embodiment of the device according to the invention is shown.

Figure 1 shows an embodiment of the device according to the invention in a preparation position;

Figure 2 shows the device of Figure 1 in a position of use after preparing the drink;

Figure 3 shows schematically and in perspective an embodiment of the cooperating connecting parts of the operating stem and the piston, and

Figures 4 and 5 show the principle of the cooperation between the piston and the lid.

The device for preparing a drink shown in figure 1 comprises a cup-shaped container, which in the embodiment shown consists of a glass 2 accommodated in a carrier 1. In the glass 2 there is a piston 3, which, at its top, comprises a holder protruding operating handle 4. The piston 3 engages with its peripheral edge on the inner wall of the glass 2 and can be moved up and down in the holder by means of the operating stem 4.

The operating handle 4 has a handle 5 on its top.

The piston 3 is provided in the manner shown in figures 4 and 5 with perforations or the like, so that liquid can pass through this piston. Incidentally, it is noted that the piston 3 thus permeable to a beverage is already known per se.

A cover 6 is placed on the glass 2, which for the passage of the operating stem 4 is provided with an opening which is not further indicated, which also ensures correct guidance of the assembly from piston 3 and operating stem 4.

If, for example, coffee is to be prepared in the container, the procedure is as follows. The piston 3 is removed from the glass 2 by means of the operating stem 4, while the lid 6 is also removed from the glass 2. Coffee powder is then placed in the glass 2 on the bottom thereof. Hot water is then poured into the glass and the piston 3 is placed in the glass 2 with the aid of the operating stem 4 after some time. The coffee formed then flows through the perforations in the piston 3 during the lowering of the piston 3, so that the glass 2 is eventually filled with coffee. The coffee grounds remain under the piston 3, as it is too thick to pass through the perforations in the piston 3. With the aid of the operating handle 4, the piston 3 can then be pressed firmly onto the coffee grounds, whereby it is compressed and a maximum amount of coffee is obtained.

The operating stem 4 is detachably connected to the piston 3 in a manner to be described later. This means that after the coffee has been prepared in the manner described above, the operating stem 4 can be detached from the piston 3 and can be removed and optionally used as a stir bar. The lid 6 can also be removed from the glass 2. The situation shown in figure 2 is thus achieved, wherein the piston 3 is located near the bottom of the glass 2 and the coffee grounds are held under this piston 3. It is now readily possible to drink the coffee directly from the shown container without the coffee having to be first poured into a cup or the like.

The piston 3 has lips 7 which engage clampingly on the inner wall of the glass 2. Such clamping is important in particular in the position shown in figure 2, since this prevents the piston 3 from accidentally loosening and the coffee grounds from the coffee being prepared can contaminate.

Figure 3 shows how a releasable connection between the operating stem 4 and the piston 3 can be established. The operating stem has four radially protruding cams 8 at its lower end. The piston is provided with a recess 9 receiving these cams, which mainly consists of four inlet openings 10 corresponding to the protruding cams 8 of the operating stem and an adjoining cavity extending parallel to the surface of the piston 3, which forms, as it were, the undercut grooves receiving the projections 8. When the operating stem 4 is to be arranged in the recess 9, the cams 8 are moved through the entry openings 10 in the recess 9, and the operating stem 4 is then rotated relative to the piston 3. As a result, the cams 8 come to lie in the undercut grooves under the surface segments 11 of the piston 3. One or more stops 12 ensure that the operating stem 4 cannot be rotated too far relative to the piston 3.

To loosen the operating stem 4 from the piston 3, the operating stem is rotated in the opposite direction relative to the piston, until the cams 8 can be removed from the recess 9 of the piston 3 via the inlet openings 10. The operating handle 4 can then be removed.

As previously noted, the piston 3 has resilient lips 7 on its periphery, which ensure good contact between the piston 3 and the inner wall of the glass 2. However, this means that the piston 7 is fitted in the glass 2 on could encounter problems. A solution for this is offered by the lid 6. As can be seen in figure 4, this lid 6 has an inner rim 13, which is dimensioned such that it presses the resilient lips 7 of the piston 3 inward when the piston 3 is in the lid 6 is included. The piston 3 is received in the lid 6 by moving the operating stem 4 upwards, until the piston 3 rests against the lid 6. In this position, the lid 6 can be placed on the top edge of the glass 2, without the resilient lips 7 engaging the inner wall of the glass 2. Then, by means of the operating handle 4, the piston 3 can be lowered, the lips 7 are released from the edge 13 and come to rest against the inner wall of the glass 2. This position is shown in figure 5.

The device according to the invention is particularly suitable for preparing various drinks. This could include coffee and tea, but also fruit drinks. After the removal of the operating stem 4, the drink can be consumed directly from the container, which improves ease of use. The device is also particularly suitable for preparing small amounts of drink, for example for a single person.

The use of a piston 3 with resilient lips 7 as well as the cooperation between the lid 6 and the piston 3 for arranging the piston 3 in the holder has the special advantage that manufacturing tolerances can be easily compensated. This places less stringent requirements on manufacturing, so that the costs of manufacturing the device can be minimized.

Obviously, it is possible to use an actuating stem and piston according to the present invention in other pre-existing containers having suitable dimensions.

The invention is not limited to the embodiment described above, which can be varied in many ways within the scope of the invention. In this regard, it is noted that the device is not limited to an embodiment in which only small amounts of beverage can be manufactured. An embodiment in which the container can contain a large amount of drink is also an option. Any other connection between the piston and the operating stem can also be realized which is easily detachable and attachable.

Claims (9)

1. Device for preparing a beverage, such as tea or coffee, with a cup-shaped holder and a piston which can be moved up and down in the holder and which can be moved in a movable manner and which has an operating handle protruding from the holder at its top, with the characterized in that the operating handle is detachably connected to the piston.
Device as claimed in claim 1, characterized in that the operating stem and the piston have connecting parts co-acting such that the connection between the two is fixable or detachable by mutual rotation between the operating stem and piston.
Device as claimed in claim 2, characterized in that the operating stem has at its lower end at least one radially projecting cam, while the piston is provided with a recess receiving this cam, which at least one entry opens into the surface of the piston opening and a subsequent undercut groove extending parallel to the surface.
Device according to claim 3, characterized in that the operating stem has four cross-projecting cams, while the recess in the piston has four entry openings and four undercut grooves.
Device as claimed in any of the claims 1-4, characterized in that the piston engages clampingly on the container inner wall at least in the vicinity of the bottom of the container.
Device as claimed in any of the claims 1-5, characterized by a lid which can be placed on the holder, which is provided with an opening for the operating handle and which is rotatable relative to the holder.
Device according to claim 6, characterized in that the cover has engaging means on the piston for reducing the outer circumference of the piston when the piston is received in the cover.
8. Device as claimed in claim 7, characterized in that the piston circumference consists of resilient lips, while the lid has an internal rim, which presses these lips inward.
Piston assembly and operating stem for use in an apparatus according to any one of the preceding claims.
NL9001463A 1990-06-27 1990-06-27 Container for preparation and consumption of beverages - has plunger with removable stem and lid designed to improve plunger insertion and removal NL9001463A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL9001463 1990-06-27
NL9001463A NL9001463A (en) 1990-06-27 1990-06-27 Container for preparation and consumption of beverages - has plunger with removable stem and lid designed to improve plunger insertion and removal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9001463A NL9001463A (en) 1990-06-27 1990-06-27 Container for preparation and consumption of beverages - has plunger with removable stem and lid designed to improve plunger insertion and removal

Publications (1)

Publication Number Publication Date
NL9001463A true NL9001463A (en) 1992-01-16

Family

ID=19857319

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9001463A NL9001463A (en) 1990-06-27 1990-06-27 Container for preparation and consumption of beverages - has plunger with removable stem and lid designed to improve plunger insertion and removal

Country Status (1)

Country Link
NL (1) NL9001463A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033399A1 (en) * 1994-06-06 1995-12-14 Brasilia (Uk) Limited Filter apparatus
EP1331867A4 (en) * 2000-10-11 2004-04-21 Nick O'loughlin Plunger for brewing a drink
AU2001295264B2 (en) * 2000-10-11 2006-10-05 Nick O'loughlin Plunger for brewing a drink
WO2009157813A1 (en) * 2008-06-26 2009-12-30 Kroyalo Igor Nikolaevich Tea making glass

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033399A1 (en) * 1994-06-06 1995-12-14 Brasilia (Uk) Limited Filter apparatus
AU689901B2 (en) * 1994-06-06 1998-04-09 Tcc Trading Limited Filter apparatus
US5770074A (en) * 1994-06-06 1998-06-23 Brasilia (Uk) Limited Filter apparatus
EP1331867A4 (en) * 2000-10-11 2004-04-21 Nick O'loughlin Plunger for brewing a drink
US6964223B2 (en) 2000-10-11 2005-11-15 O'loughlin Nick Plunger for brewing a drink
AU2001295264B2 (en) * 2000-10-11 2006-10-05 Nick O'loughlin Plunger for brewing a drink
WO2009157813A1 (en) * 2008-06-26 2009-12-30 Kroyalo Igor Nikolaevich Tea making glass

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