EP0289876B1 - Cremespender mit einem die Creme aufnehmenden Behälter - Google Patents

Cremespender mit einem die Creme aufnehmenden Behälter Download PDF

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Publication number
EP0289876B1
EP0289876B1 EP88106383A EP88106383A EP0289876B1 EP 0289876 B1 EP0289876 B1 EP 0289876B1 EP 88106383 A EP88106383 A EP 88106383A EP 88106383 A EP88106383 A EP 88106383A EP 0289876 B1 EP0289876 B1 EP 0289876B1
Authority
EP
European Patent Office
Prior art keywords
container
cream
piston
ring
cream dispenser
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 - Lifetime
Application number
EP88106383A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0289876A2 (de
EP0289876A3 (en
Inventor
Rolf A. Schulz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88106383T priority Critical patent/ATE78784T1/de
Publication of EP0289876A2 publication Critical patent/EP0289876A2/de
Publication of EP0289876A3 publication Critical patent/EP0289876A3/de
Application granted granted Critical
Publication of EP0289876B1 publication Critical patent/EP0289876B1/de
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B67D7/0227—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants by an ejection plunger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons

Definitions

  • the invention relates to a cream dispenser according to the preamble of claim 1.
  • Such cream dispensers can be used for pastes or creams.
  • Such a cream dispenser is known from US-A-3 337 092.
  • a ring made of rubber or rubber-like material is fitted into an annular groove in the piston.
  • the rubber ring protrudes slightly above the piston.
  • the outer part of the ring folds up and lies against the wall of the container.
  • the soft rubber ring is not sufficient to strip the cream from the container wall. If, in particular, the cream dispenser is to be used for the medical field, the requirements that generally have to be placed on hygiene are no longer met.
  • Another cream dispenser is known from DE-A 32 35 171.
  • the piston of the known cream dispenser has rigid discs and flexible discs with lips for sealing. Furthermore, teeth are provided in the inner wall of the container and on the riser pipe, so that the movement of the piston in the container takes place only in a desired direction.
  • the construction of this piston is complicated. If the piston is tightly fitted into the container for a good seal and relatively firm pasty creams are used, it has been shown that the piston is very difficult. Furthermore, it has been shown that the seal cannot be reliably maintained if the container walls are inclined towards one another.
  • the seal should remain effective even if the opposing parts of the container wall are not parallel to one another.
  • the cream dispenser 1 has a container 2.
  • the container 2 has a peripheral side wall 3 and a bottom 4.
  • the container narrows conically towards the bottom.
  • it can also have a side wall in which the mutually opposite regions are parallel to one another, it can have a barrel-shaped appearance or have another shape.
  • a lid 5 can be placed on the container 2.
  • the lid 5 can be screwed onto the container 2, as shown in the figure, or it can be put on or attached in some other way.
  • the lid 5 has an opening 6.
  • the opening 6 is provided with an extension as a guide 7 which extends into the interior of the container.
  • a hollow riser pipe 8 is guided through the opening 6.
  • the riser pipe 8 is designed such that it connects a container space formed by the container bottom 4, the container wall 2 and the lid 5 to the outside space.
  • a piston 9 is attached to the first end of the riser tube 8 projecting into the container space.
  • the piston 9 has an opening 10 which connects the inside of the riser pipe with the space between the piston 9 and the container bottom 4.
  • the piston can be bell-shaped on the side facing the container bottom 4, but it can also have a different shape.
  • the piston 9 must have a peripheral side wall 11.
  • the piston 9 has a shape which essentially corresponds to the inner shape of the container, the diameter taken over the side wall of the piston always being somewhat smaller than the inside diameter of the container at its narrowest point. As a result, the piston can be moved up and down easily at any height in the container. A gap remains between the piston side wall 11 and the container side wall 3.
  • a circumferential annular groove 12 is formed in the piston side wall 11.
  • annular groove 12 instead of the one annular groove 12, two or more annular grooves 12, 13, 14 can also be formed.
  • a circumferential ring 15, 16, 17 is inserted into each ring groove 12, 13, 14.
  • the rings 15, 16, 17 are slotted and elastic.
  • the extent of the rings 15, 16, 17 in their ring plane is chosen to be larger than the largest gap that can occur between the piston side wall 11 and the container side wall 3.
  • the rings 15, 16, 17 have a gap. In the relaxed state, its outer diameter is equal to or larger than the largest inner diameter of the container interior, and the annular gap is so wide that the rings 15, 16, 17 can be compressed to the smallest container inner diameter.
  • the ring grooves 12, 13, 14 are formed so deep in the piston side wall 11 that they can accommodate the rings 15, 16, 17 compressed to the smallest inside diameter of the container.
  • the rings 12, 13, 14 thus act as piston rings.
  • the rings are quasi disc-shaped with edges, so that the cross section is rectangular.
  • the rings can be slotted.
  • the rings are designed so that the separation point is formed by an oblique cut so that the beveled surfaces lie completely on top of one another in the compressed state.
  • the inclined planes slide onto one another.
  • the rings are biased in the axial direction so that the planes sliding on each other are still on each other in any position. This ensures that, even with a widened ring, there is no gap through which the material to be pumped out could pass.
  • the rings 12, 13, 14 thus act as piston rings.
  • the cross section of the rings is rectangular.
  • the rings are not formed with a gap, but rather they are slotted and bent together in such a way that they are longer than the circumference of the ring in the relaxed state, for this the rings have to overlap somewhat at the slotted point.
  • the overlap is best carried out in such a way that the overlapping ring parts are chamfered and arranged parallel to the container wall 3, as shown in Fig. 2.
  • the cream is prevented from passing through the annular gap. If the overlapping ring parts are not beveled, the associated ring groove must be made wider.
  • a hand rest 18 is attached to the second end of the riser tube 8 protruding from the container.
  • the hand rest 18 is provided with a channel 19 which connects the riser pipe 8 to an outlet opening 20.
  • the outlet opening 20 can optionally be provided with a closure (not shown).
  • the piston 9, the riser 8 and the hand rest 18 are arranged in such a way that a continuous connection between the space formed between the piston 9 and the container bottom 4 and the outside space is established, this connection can be made by the closure in its closed position be interrupted.
  • the container 2 is filled with the cream, enough space must remain under the upper edge of the container wall 3 that the piston 9 can be accommodated in this space. Then the lid 5 is fastened to the container 2 with the ascending pipe 8 provided with the piston 9 and the hand rest 18. The plunger 9 then rests on the surface of the cream. An embodiment can also be selected in which no cover 5 is provided. Then the piston 9 with the riser pipe 8 and the hand rest 18 is inserted into the open container 2.
  • the cream dispenser 1 prepared in this way is placed in a place convenient for removal.
  • the user presses the palm rest 18 with one hand and holds a spatula or the like with the other hand. under the outlet opening 20.
  • the pressure on the hand rest 18 is transferred through the riser pipe 8 and the piston 9 to the cream present in the space between the piston 9 and the base 4. Due to the pressure, the cream rises in the riser pipe 8, passes through the channel 19 and emerges from the outlet opening 20.
  • the cream is removed there.
  • the pressure on the cream also stops and no more cream emerges from the outlet opening 20. This pump-like actuation enables a very precise dosage of the cream to be removed.
  • the container is usually essentially circular in plan view, but other shapes can also be selected, such as an oval shape, an essentially square shape or the like.
  • the piston must then have a corresponding shape for each container shape, and the rings must be bent accordingly.
  • the cream dispenser can be operated with one hand, so that the second hand remains free for removing the cream.
  • all parts of the cream dispenser can be made from the same material, such as polypropylene, which means that the requirements of the Federal Health Office can be met. Because of the good influence on the pressure on the cream, creams of very different consistency, from very liquid to very solid creams, can be handled with the cream dispenser.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
EP88106383A 1987-05-08 1988-04-21 Cremespender mit einem die Creme aufnehmenden Behälter Expired - Lifetime EP0289876B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106383T ATE78784T1 (de) 1987-05-08 1988-04-21 Cremespender mit einem die creme aufnehmenden behaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715459A DE3715459C1 (de) 1987-05-08 1987-05-08 Cremespender mit einem die Creme aufnehmenden Behaelter
DE3715459 1987-05-08

Publications (3)

Publication Number Publication Date
EP0289876A2 EP0289876A2 (de) 1988-11-09
EP0289876A3 EP0289876A3 (en) 1989-12-06
EP0289876B1 true EP0289876B1 (de) 1992-07-29

Family

ID=6327144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106383A Expired - Lifetime EP0289876B1 (de) 1987-05-08 1988-04-21 Cremespender mit einem die Creme aufnehmenden Behälter

Country Status (5)

Country Link
EP (1) EP0289876B1 (ja)
JP (1) JPS63296864A (ja)
AT (1) ATE78784T1 (ja)
DE (2) DE3715459C1 (ja)
ES (1) ES2033994T3 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000065235A1 (en) * 1999-04-22 2000-11-02 Nvb International A device comprising a combination of a chamber and a piston
JP5256064B2 (ja) * 2009-01-29 2013-08-07 ヤマハ発動機株式会社 はんだ供給装置および印刷装置
DE202013103007U1 (de) * 2013-07-08 2014-10-10 Slawomir Baranski Spender zur Ausgabe flüssiger bis pastöser Massen
DE102013225379A1 (de) * 2013-12-10 2015-06-11 Robert Bosch Gmbh Hydraulischer Koppler
CN107352130A (zh) * 2017-08-18 2017-11-17 沈阳华晨塑料制品有限公司 一种伸缩式活塞吸油盘及油脂桶

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1714482A (en) * 1927-05-28 1929-05-21 Schmuziger Willy Discharging device for paints and the like
FR805352A (fr) * 1936-02-10 1936-11-18 Segment extensible indifférent à l'usure et exerçant sur le cylindre une pression ariable avec la compression
US2815994A (en) * 1955-03-07 1957-12-10 Aaron H Lippman Self-adjusting piston for soap dispenser
GB1062295A (en) * 1965-02-18 1967-03-22 Beecham Group Ltd Improvements relating to dispensers
US4487341A (en) * 1981-10-01 1984-12-11 Colgate-Palmolive Company Dispenser for dispensing creams and especially self-foaming gels

Also Published As

Publication number Publication date
DE3715459C1 (de) 1988-10-20
DE3873154D1 (de) 1992-09-03
ES2033994T3 (es) 1993-04-01
JPS63296864A (ja) 1988-12-02
EP0289876A2 (de) 1988-11-09
EP0289876A3 (en) 1989-12-06
ATE78784T1 (de) 1992-08-15

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