Dispenser for paste-like substances

Details Dispenser for paste-like substances Dispenser for paste-like substances

1986-07-23

1988-06-07

Huppert, Michael S.

Dispensing

With cutter and/or punch

222391, 222541, B67D 542

Patent

active

047491051

ABSTRACT:
A dispenser for paste-like substances is disclosed having a piston which is slidably disposed in a dispenser housing. The piston moves as the dispenser is being emptied toward a dispensing opening while being restrained from movement in the opposite direction. A press button is connected with a rod that extends through the piston and is coupled nonpositively with the piston through the intermediary of a locking device permitting the rod to move freely in one direction, but to carry the piston in the opposite direction. A membrane seals the end of the housing opposite the discharge opening. The piston rod is designed as a piercing tool for piercing the membrane.

REFERENCES:
patent: 2829801 (1958-04-01), Ayres
patent: 3255935 (1966-06-01), Spatz
patent: 3727797 (1973-04-01), Cronan
patent: 4019654 (1977-04-01), van Manen
patent: 4169547 (1979-10-01), Newell
patent: 4413759 (1983-11-01), Mettenbrink
patent: 4421255 (1983-12-01), Czech
patent: 4673106 (1987-06-01), Fishman
patent: 4696415 (1987-09-01), Meshberg

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