Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1992-08-26
1994-05-31
Kashnikow, Andres
Dispensing
With discharge assistant
Insertable cartridge or removable container
222386, B67D 500
Patent
active
053161866
ABSTRACT:
The invention relates to a cartridge for paste-like substances, including a tubular cartridge body closed at one end by a front end wall having an outlet nipple defining an outlet opening; a plunger for pressing such a paste-like substance through the outlet opening, the plunger being inserted into the open rear end of the cartridge body, wherein an outer periphery of the plunger is in sealing contact with an inner wall of the cartridge body; a journal protruding from and fixed to the plunger, the journal being adapted to penetrate the outlet opening when the plunger rests against the front end wall, the journal being at least the same length as the outlet opening; and at least one continuous longitudinal axial groove formed in at least one of an outer peripheral surface of the journal and an inner wall of the outlet opening, wherein the plunger is adapted to have its entire front surface contact the front end wall of the cartridge upon forcing the journal through the outlet opening.
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Kashnikow Andres
Morris Lesley D.
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