EP1134167A2 - Druckbehälter mit wenigstens zwei Kammern - Google Patents
Druckbehälter mit wenigstens zwei Kammern Download PDFInfo
- Publication number
- EP1134167A2 EP1134167A2 EP01106545A EP01106545A EP1134167A2 EP 1134167 A2 EP1134167 A2 EP 1134167A2 EP 01106545 A EP01106545 A EP 01106545A EP 01106545 A EP01106545 A EP 01106545A EP 1134167 A2 EP1134167 A2 EP 1134167A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure vessel
- piston
- vessel according
- cross
- sealing lips
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/60—Contents and propellant separated
- B65D83/64—Contents and propellant separated by piston
Definitions
- the invention relates to a pressure container for gases, liquids, pasty products or the like Filling goods, its container space displaceable in the longitudinal axis mounted pistons in two axially associated and chambers sealed against each other is divided; their one forms with the bottom of the container and a portion of the tubular container wall an area for a propellant, whereas the other chamber with an approximately axially arranged Exhaust valve is provided.
- US-A-5522526 describes a spray can with a can lid inward projecting outlet valve and the tank bottom penetrating inlet valve for compressed air.
- the piston is shaped as a bowl that is open to the floor and whose conical bowl bottom up to the longitudinal axis Offers recess for that exhaust valve.
- About in half the piston height is its wall with an external groove for provided an O-ring as a sealing element, which has a cylindrical Annular gap between piston wall and can body bridged; this annular gap is from a lower one Bulge filled with compressed air up to the O-ring So the lower can chamber away.
- a container according to DE 41 32 422 C2 is slidable Flat piston I-shaped longitudinal section in one lower chamber for propellant and an upper chamber for product to be dispensed divided.
- EP 0 111 089 A2 discloses a pressure vessel for treatment of so-called two-component products with at least two mutually sealed chambers and one of these common valve plate, with one for each chamber exhaust valve connected to the inside thereof is to be opened together; the valves included one-piece valve body, and the trigger member is to open several valves evenly compared to the Valve plate axially movable, but radially immovable as well secured against axial pivoting.
- valves are with one-piece, valve bodies arranged along a straight line, and to open several valves evenly a pivotally mounted lever member is provided, the Swivel axis parallel to that through the center of the valve body straight line.
- a precursor to this pressure vessel is in US-A-3,045,925 described and contains an outer main chamber and a secondary or secondary chamber arranged within this; each of these is equipped with an outlet valve for dispensing the Provided chamber content and both valves is a trigger element together.
- the inventor was aware of this state of the art set the goal of such a two-chamber system for improvement the environmental behavior of spray cans.
- the piston has two in its circumference axial distance ring-like circumferential sealing lips made of flexible Material on that with cross-sectional deformation lie tightly against the inside surface of the container wall.
- the two are Sealing lips of the piston cross-section like a dovetail trained and limit with the can body a tight gusset.
- the sealing lips should be in unloaded state preferably an angle of at least 90 ° for the gusset space, in particular this can Measure angles up to 150 °.
- the Piston the interior into the valve-receiving chamber for the filling material and into the near-ground air intake chamber as pressure medium, which in a manner known per se by a Rubber plugs with about 18 to 20 bar in this receiving chamber is pressed.
- the interior of the tubular can body is therefore between the bottom area and a containing the exhaust valve Can lid through the plunger into each other axially associated chambers divided, and a preferred
- the shape of the piston points to a disk-like plate section the two on its circumference at an axial distance circumferential cross-sectional deformable sealing lips flexible material.
- the sealing lips should be on the lower edge of a spherical cap of the piston be molded on.
- the sealing lips as ribs of an approximately x-shaped piston ring form that surrounds the piston; this piston ring is preferably stored in a circumferential groove of the piston.
- a plate-like flat space formed by a ring section of the Sealing lip is limited.
- the plate section protrudes from its upward direction Surface on a stop body that the piston in sufficient Keep distance from the stop valve. Both of these Stop body as well as that dome-like hood with a central indentation to hold a part of the exhaust valve.
- the dome-like hood according to the invention offers a flat Lower surface from that lying lower in the can body Sealing lip is towered over.
- the hood can be closed Dome formed or with at least one from the lower surface the hood outgoing and placed around its longitudinal axis Annulus - possibly triangular Cross section - be provided.
- the dome-like Hood designed as a dome-like shell that in its Zenith prefers the central indentation containing receiving sleeve is provided.
- the bottom surface of this bowl is formed by a ring edge, which - like the entire shell - is characterized by a distinguishes constant thickness.
- the two sealing lips two each - by one parallel to the lip edges Border contour separated - have sections of their back surface, each with a cross section of the two Lip edges determine another construction line Limit cross-sectional angle; the cross-section angle for the one adjoining the plate section or the hood Back section measures approximately 40 ° to 44 °, preferably approximately 42 °, the cross-sectional angle for the outer back section about 28 ° to 32 °, especially 30 °.
- the or front surface of the sealing lip with that construction line form an angle of less than 20 °. From inventive Meaning is the idea of the piston depending on the requirement to manufacture from a high pressure polyethylene.
- one of the two can be attached to the outer surface
- a further sealing lip can be formed on the sealing lips delimits a further gusset space with its outer surface; this further sealing lip is preferably on a cross-sectional Center line between the two outer ones Sealing lips arranged, especially on the below the Protruding sealing lip underneath.
- the back surface of the further sealing lip should also be two by a boundary contour parallel to the lip edges have separate sections that are different Cross-sectional angles should be determined, including the lip edges of the three sealing lips cross-section on one common construction lines.
- the piston is made of polyethylene molded, a material with very high chemical resistance against acids and alkalis, the piston is flexible and still keeping its shape.
- the shape of the piston described is of great importance; because that have two lips facing up and down the task of immediately separating the two separate chambers, d. H. without additional o-ring, so that the air and seal the contents cannot mix.
- the piston tilts inside the can body excluded because the pressure is always even on the Distributed printing areas.
- the piston slides with minimal Friction on the painted inner surface of the smooth can body along.
- a spray can containing the piston according to the invention becomes a product without propellant gas - i.e. without propane, Butane, isobutane, isopropane - controlled in powdered form sprayed out.
- propellant gas i.e. without propane, Butane, isobutane, isopropane - controlled in powdered form sprayed out.
- the environment is relieved; the previous propellants are no longer used, which is why there is no longer any danger of explosion.
- the cans can be refilled, and production costs are lowered.
- This solution according to the invention offers environmental protection also a significant reduction in production costs; the former A mixture of propellant and filling material placed high demands to the interior painting of the cans - and this led too high rejects. Paint bubbles and foam formation on Have bottom edge in the piston solution according to the invention no longer meaning; the interior paint consumption drops considerably.
- Another requirement according to the invention is the upper side of the piston in the same shape as the inside of the piston. This additional shaping of the piston it is possible to reproduce almost the entire product. It is also important that the width of the piston can be easily adapted to any diameter. Thanks to injection molding, it becomes possible, depending on the need Adjust the piston to the inside diameter and thus adapt to any can or can shape. Because the diameter the cans are standardized by most manufacturers, the standard piston can also be adjusted to these standard values become. Thanks to the subtle lip shape will be small bumps like dents as a result of Beat blows effortlessly without reducing tightness would.
- a pressure container 10 designed as a spray can has one - One end with a trough-shaped molded container bottom 12 provided - cylindrical can body 14 of Inner diameter d of, for example, 38 mm, the other to a bead 16 of the inner diameter e of about 26 mm is drawn in; is 16 on this bead a bowl-like can lid 18 set, the Lid bottom 19 runs at a distance a to the lid edge 20 and towards this equipped with a central shape 22 is designed to accommodate an outlet or spray valve 24 with spray head 25.
- the spray can 10 is at 26 a - a breakthrough closing - indicated rubber stopper.
- Plastic-shaped piston 30 which consists of a plate section 32 with a thickness h of 5 mm and a stop body 42 molded onto it; the latter contains a - in the longitudinal axis A of the spray can 10 - central indentation 44 of the diameter e 1 for parts of that spray valve 24 in the upper end position of the piston 30, not shown, to its outer circumference 34 there are two on the plate section 32 of the piston 30 cross-sectionally formed on the gusset space 36, which accommodates the outer circumference 34, and which opens at an angle w of approximately 90 ° and has a final thickness i of 0.7 mm, which conforms to the inner surface 15 of the can body 14 and the lip edges 40 thereof stand in the spread position shown at a spacing distance n of 15 mm to each other.
- the respective contact or connection height q of the sealing lip 38 and the inner surface 15 of the socket body 14 measures about 3 mm.
- a plate-shaped piston 30 a without stop body with dovetail-shaped sealing lips 38 a without an annular outer circumference of the plate section can be seen in FIGS. 2, 3, a piston 30 b with profiled sealing lips 38 b in FIG. 4.
- the cross section of the piston 30 b of FIG. 4 corresponds on the longitudinal axis A to the cross sections of the pistons 30, 30 a described above.
- the sealing lips 38 b protrude from an integrally formed on the plate section ring portion 46 of the radial width b, in which that cross-sectional gusset 36 a is molded.
- the ring section 46 surrounds on the piston surfaces in each case a plate-like space 48 of the height t, which corresponds to approximately one third of the thickness h of the plate section 32.
- the total height f of the compact ring section 46 - without the bent sealing lip 38 b - thus measures (h + 2t) for example 8.5 mm.
- the two sealing lips 38, 38 a , 38 b spread in the can body 14 have the task of sealing the two chambers 28, 29 separated by the pistons 30, 30 a , 30 b , so that the filling material located in the upper chamber 29 does not contain air can mix, which is pressed into the lower chamber 28 at 18 to 20 bar through that rubber stopper 26.
- the spray valve 24 opens and the filling material under pressure is discharged. This creates 29 negative pressure in the upper chamber. In order to compensate for this negative pressure, the piston 30, 30 a , 30 b moves upwards.
- Tilting of the piston 30, 30 a , 30 b within the spray can 10 is excluded thanks to the large spreading distance n; in addition, the pressure is always distributed evenly over the printing areas. Since the inner surface 15 of the spray can 10 is painted and smooth, the piston 30, 30 a , 30 b slides along it with minimal friction.
- each of the sealing lips 38 c is provided with two cross-sectional areas of different angles z, z 1 of 42 ° and 30 ° between two back surface sections 50 and 50 a and a construction line G, which the latter connects the lip edge 40.
- the cross-sectional angle w 1 between the construction line G and the outer surface 39 of the sealing lip 38 c is 17 ° here.
- the distance g between the boundary contour 52 that can be seen on the inside of the sealing lip 38 c between those back surface sections 50, 50 a is 3.34 mm
- the distance g 1 to the lip edge 40 here is 3.46 mm.
- FIG. 5 shows the cross-sectional distance k of the surface 33 or 33 t of the plate section 32 on the one hand and the distance k 1 of the boundary contour 52 from the construction line G - with 5.0 or 2.9 mm - at a width b 1 of the lip region 38 c adjoining the plate section 32 of 5 mm; the remaining inner diameter d 1 of the plate section 32 is 40 mm here.
- piston 30 d of Figure 7, 8 is the upper of the two sealing lips 38 d with its w angularly 1 inclined outer surface 39 to the center line M of the plate portion 32 guided, whereas from the outer surface 39 of the lower sealing lip 38 d a further interposed - - A gusset 36 d determining - sealing lip 41 protrudes, the lip edge 40 facing the upper sealing lip 38 d , this lip edge is 40 m approximately in the middle of the spreading distance n.
- the back surface here is also divided into two sections 50 m , 50 n at a boundary contour 52.
- the piston 60 shown in FIGS. 9, 10 is shaped without the plate section 32 described above; instead, the sealing lips 38 c corresponding to the embodiment of FIGS. 5, 6 are formed out of a dome-like hood 62 into which, starting from their lower surface 64, an annular space 66 of width e 2 runs around the longitudinal axis A 1 of the hood 62 is molded. Its cross section is approximately triangular, the cross section of the hood 62 is otherwise closed.
- FIGS. 11, 12 The embodiment of FIGS. 11, 12 is similar to that just described.
- an annular space 66 a corresponding to an isosceles triangle is formed from below, to which an annular surface 65 of width c adjoins the outside.
- a piston 60 b with a hood 62 b which consists of a dome-shaped shell 68 of constant thickness h 1 of approximately 2 mm and with a dome extending from the inner surface of this dome-like shell 68 into the dome interior 69
- Receiving sleeve 45 is equipped; the latter surrounds the central indentation 44.
- the lower surface 64 b is here a ring on which the sealing lips 38 e are integrally formed; the cantilever dimension m here measures 5 mm.
- a specially designed piston 30 e is outlined in FIG. 15; whose sealing lips 38 e are formed together with plate section 32 from high-pressure polyethylene.
- a cover layer 54 made of a softer and better-sealing polyethylene has been applied to the outer surface of the sealing lips 38 e ; an even higher degree of sealing is achieved.
- the piston 70 with a diameter s and a thickness h of 10 15 in FIG. 15 defines an annular one with the can body 14 Gap 72 of width y.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Packages (AREA)
Abstract
Description
- Fig. 1:
- einen Längsschnitt durch einen Druckbehälter mit zwei Kammern und dazwischen vorgesehenem Kolben zum Versprühen von Füllgut;
- Fig. 2 bis 5, Fig. 7,9,11, Fig. 13,16:
- Querschnitte durch Ausgestaltungen des Kolbens;
- Fig. 6,8,10, Fig. 12,14,17:
- einen vergrößerten Ausschnitt aus der jeweils voranstehenden Figur;
- Fig. 15:
- einen Teilquerschnitt durch einen weiteren Kolben.
Claims (18)
- Druckbehälter für Gase, Flüssigkeiten, pastöse Produkte od.dgl. Füllgüter, dessen Behälterraum durch einen darin in Längsachse (A) verschieblich gelagerten Kolben (30, 30a bis 30e; 60, 60a, 60b; 70) in zwei einander axial zugeordnete und gegeneinander abgedichtete Kammern (28, 29) unterteilt ist, deren eine mit dem Behälterboden (12) und einem Abschnitt der rohrartigen Behälterwandung (14) einen Bereich für ein Treibmittel bildet, wobei die andere Kammer mit einem etwa axial angeordneten Auslassventil (24) versehen ist,
dadurch gekennzeichnet, dass der Kolben (30, 30a bis 30e; 60, 60a, 60b; 70) an seinem Umfang zwei in axialem Abstand (11) ringartig umlaufende Dichtlippen (38, 38a bis 38e; 78) aus flexiblem Werkstoff aufweist, die mit querschnittlicher Verformung der Innenfläche (15) der Behälterwandung (14) dichtend anliegen. - Druckbehälter nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Dichtlippen (38, 38a bis 38e; 78) des Kolbens (30, 30a bis 30e; 60, 60a, 60b; 70) querschnittlich schwalbenschwanzartig ausgebildet sind und mit dem Dosenkörper (14) einen dichten Zwickelraum (36, 36a; 80) begrenzen.
- Druckbehälter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Dichtlippen (38, 38a bis 38e; 78) in unbelastetem Zustand einen Winkel (w) von zumindest 90° für den Zwickelraum (36, 36a, 80) begrenzen, wobei gegebenenfalls der Winkel (w) für den Zwickelraum (36, 36a; 80) bis zu 150° misst.
- Druckbehälter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Dichtlippen (38, 38a bis 38e) an den Umfang eines scheibenartigen Plattenabschnittes (32) angeformt sind, oder dass die Dichtlippen (38c) an den unteren Rand einer kalottenartigen Haube (62, 62a, 62b) des Kolbens (60, 60a, 60b) angeformt sind.
- Druckbehälter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Dichtlippen (78) von Rippen eines querschnittlich etwa x-förmigen Kolbenringes (76) gebildet sind, der den Kolben (70) umfängt, wobei gegebenenfalls der Kolbenring (76) in einer Umfangsnut (74) des Kolbens (70) lagert.
- Druckbehälter nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass in zumindest eine der Oberflächen (33, 33t) des Plattenabschnittes (32) ein tellerartig flacher Raum (48) eingeformt und von einem Ringabschnitt (46) der Dichtlippe (38b) begrenzt ist, und/oder dass von der im Druckbehälter (10) aufwärts gerichteten Oberfläche (33) des Plattenabschnittes (32) ein Anschlagkörper (42) aufragt.
- Druckbehälter nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass die kalottenartige Haube (62, 62a, 62b) oder der Anschlagkörper (42) mit einer zentrischen Einformung (44) zur Aufnahme eines Teils des Auslassventils (24) versehen ist.
- Druckbehälter nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die kalottenartige Haube (62, 62a, 62b) mit einer ebenen Unterfläche (64, 64b) versehen ist, die von einer der Dichtlippen (38c) überragt ist, wobei gegebenenfalls von der Unterfläche (64) der kalottenförmigen Haube (62) ein um deren Längsachse (A1) gelegter Ringraum (66, 66a) ausgeht, der gegebenenfalls einen etwa dreiecksförmigen Querschnitt aufweist.
- Druckbehälter nach Anspruch 4 oder 8, dadurch gekennzeichnet, dass die kalottenartige Haube (62b) als eine kuppelartige Schale (68) ausgebildet ist, die gegebenenfalls in ihrem Zenit mit einer Aufnahmehülse (45) versehen ist, welche die zentrische Einformung (44) enthält.
- Druckbehälter nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Unterfläche (64b) der Schale (68) eine Ringkante und/oder die Schale (68) von konstanter Dicke (h1) ist.
- Druckbehälter nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die beiden Dichtlippen (38c bis 38e) jeweils zwei durch eine zu den Lippenkanten (40) parallele Grenzkontur (52) getrennte Abschnitte ihrer Rückenfläche (50, 50a) aufweisen, deren jeder mit einer vom Querschnitt der beiden Lippenkanten bestimmten Konstruktionsgeraden (G) einen anderen Querschnittswinkel (z, z1) begrenzt.
- Druckbehälter nach Anspruch 11, dadurch gekennzeichnet, dass ein Querschnittswinkel (z) von etwa 40° bis 44°, bevorzugt etwa 42°, für den an den Plattenabschnitt (32) oder die Haube (62, 62a, 62b) anschließenden Rückenabschnitt (50) und/oder ein Querschnittswinkel von etwa 28°bis 32°, insbesondere 30°, für den äußeren Rückenabschnitt (50a) vorgesehen sind/ist, wobei gegebenenfalls die Außen- oder Frontfläche (39) der Dichtlippe (38, 38a bis 38e) mit der Konstruktionsgeraden (G) einen Winkel (w1) von weniger als 20° begrenzt.
- Druckbehälter nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass an die Außenfläche (39) einer der beiden Dichtlippen (38d) eine weitere Dichtlippe (41) angeformt ist, die mit deren Außenfläche einen Zwickelraum (36d) begrenzt, wobei gegebenenfalls die weitere Dichtlippe (41) an einer querschnittlichen Mittellinie (M) zwischen den beiden äußeren Dichtlippen (38d) angeordnet ist.
- Druckbehälter nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass die Außen- oder Frontfläche (39) der Dichtlippe (38d, 38e) mit einer Deckschicht (54) aus gegenüber der Dichtlippe weicherem Werkstoff beschichtet ist.
- Druckbehälter nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass die weitere Dichtlippe (41) an der unterhalb der Unterfläche (64, 64a) abragenden Dichtlippe (38d, 38e) angeordnet ist, und/oder dass die Rückenfläche der weiteren Dichtlippe (41) zwei durch eine zu den Lippenkanten (40, 40m) parallele Grenzkontur (52) getrennte Abschnitte (50m, 50n) aufweist, die von unterschiedlichen Querschnittswinkeln bestimmt sind.
- Druckbehälter nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass die Lippenkanten (40/40m/40) der drei Dichtlippen (38d/41/38d) querschnittlich auf einer Konstruktionsgeraden (G) liegen.
- Druckbehälter nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kolben (30, 30a bis 30e; 60, 60a, 60b; 70) aus Polyethylen geformt ist, insbesondere aus Hochdruckpolyethylen, wobei gegebenenfalls die Dichtlippe (38e) zwei verschiedene Polyethylensorten aufweist.
- Druckbehälter nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, dass die der in ihm befindlichen Flüssigkeit zugekehrte Kolbenoberfläche mit einem Lack beschichtet ist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20004762U | 2000-03-15 | ||
DE20004762U DE20004762U1 (de) | 2000-03-15 | 2000-03-15 | Druckbehälter mit wenigstens zwei Kammern |
DE20102818U DE20102818U1 (de) | 2000-03-15 | 2001-02-17 | Druckbehälter mit wenigstens zwei Kammern |
DE20102818U | 2001-02-17 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP1134167A2 true EP1134167A2 (de) | 2001-09-19 |
EP1134167A3 EP1134167A3 (de) | 2003-03-19 |
EP1134167B1 EP1134167B1 (de) | 2005-10-12 |
EP1134167B9 EP1134167B9 (de) | 2007-02-28 |
Family
ID=26056152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01106545A Expired - Lifetime EP1134167B9 (de) | 2000-03-15 | 2001-03-15 | Druckbehälter mit wenigstens zwei Kammern |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1134167B9 (de) |
AT (1) | ATE306441T1 (de) |
DE (2) | DE10113078A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012203277A1 (de) | 2012-03-01 | 2013-09-05 | Mall + Herlan Gmbh | Selbstentleerende Verpackung und Vorrichtung und Verfahren zu ihrer Herstellung |
DE202020105342U1 (de) | 2020-09-17 | 2021-12-20 | Zima Systems Gmbh | Kolben für einen Druckbehälter und Druckbehälter mit einem solchen Kolben |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1394469A (fr) * | 1964-04-16 | 1965-04-02 | Pulvérisateur à piston | |
GB1390119A (en) * | 1971-08-26 | 1975-04-09 | Schultz R S | Pressurized container |
US4108219A (en) * | 1977-05-25 | 1978-08-22 | Joseph Shulsinger | Aerosol dispenser with inner container and piston |
US4355736A (en) * | 1978-03-01 | 1982-10-26 | Schumacker Henri J J | Device for dispensing a liquid or a paste in a finely divided manner |
FR2781210A1 (fr) * | 1998-07-17 | 2000-01-21 | Cebal | Distributeur de produits cremeux sous pression muni d'un piston etanche |
-
2001
- 2001-03-15 DE DE10113078A patent/DE10113078A1/de not_active Withdrawn
- 2001-03-15 AT AT01106545T patent/ATE306441T1/de active
- 2001-03-15 EP EP01106545A patent/EP1134167B9/de not_active Expired - Lifetime
- 2001-03-15 DE DE50107649T patent/DE50107649D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1394469A (fr) * | 1964-04-16 | 1965-04-02 | Pulvérisateur à piston | |
GB1390119A (en) * | 1971-08-26 | 1975-04-09 | Schultz R S | Pressurized container |
US4108219A (en) * | 1977-05-25 | 1978-08-22 | Joseph Shulsinger | Aerosol dispenser with inner container and piston |
US4355736A (en) * | 1978-03-01 | 1982-10-26 | Schumacker Henri J J | Device for dispensing a liquid or a paste in a finely divided manner |
FR2781210A1 (fr) * | 1998-07-17 | 2000-01-21 | Cebal | Distributeur de produits cremeux sous pression muni d'un piston etanche |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012203277A1 (de) | 2012-03-01 | 2013-09-05 | Mall + Herlan Gmbh | Selbstentleerende Verpackung und Vorrichtung und Verfahren zu ihrer Herstellung |
DE202020105342U1 (de) | 2020-09-17 | 2021-12-20 | Zima Systems Gmbh | Kolben für einen Druckbehälter und Druckbehälter mit einem solchen Kolben |
Also Published As
Publication number | Publication date |
---|---|
DE50107649D1 (de) | 2005-11-17 |
ATE306441T1 (de) | 2005-10-15 |
DE10113078A1 (de) | 2001-11-08 |
EP1134167A3 (de) | 2003-03-19 |
EP1134167B1 (de) | 2005-10-12 |
EP1134167B9 (de) | 2007-02-28 |
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