Dispensing pump made of plastic for paste-like materials

Details Dispensing pump made of plastic for paste-like materials Dispensing pump made of plastic for paste-like materials

1996-04-18

1998-10-13

Derakshani, Philippe

Dispensing

Resilient wall

Supply container delivering to receiving chamber

2223217, 222490, B65D 3700

Patent

active

058199900

ABSTRACT:
A dispensing pump made of plastic for dispensing paste-like materials from a paste container. It is provided with a bellows, which connects an upper housing part to a lower housing part. The housing parts are guided telescopically in one another. A paste channel is located within an annular wall. A second hollow body is inserted into the upper housing part, and the second hollow body forms the paste storage space, which is in connection with the paste channel and in which an elastic diaphragm wall having a plug-like closing member is arranged. On a front wall, which extends at right angles to the axis of the discharge opening and forms a limiting side of the paste storage space, the second hollow body has a cylindrical attachment, which projects toward the discharge opening and is concentric to the axis of the discharge opening, with a vent hole, to which attachment a third hollow body, which is made of an elastic plastic and has the diaphragm wall with the plug-like closing member, is attached by a cylindrical wall part made in one piece with the diaphragm wall.

REFERENCES:
patent: 4182496 (1980-01-01), Burke
patent: 4438871 (1984-03-01), Eckert
patent: 5152434 (1992-10-01), Birmelin
patent: 5205441 (1993-04-01), Andris
patent: 5351862 (1994-10-01), Weag

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