Bellows pump dispenser

Details Bellows pump dispenser Bellows pump dispenser

1995-01-05

1996-08-13

Kashnikow, Andres

Dispensing

With lock or fastening seal

Inhibiting actuation of discharge assistant

222207, B67D 533

Patent

active

055447899

ABSTRACT:
A bellows dispenser has a plunger lock down feature in a non-use position such as shipping and storage. During plunger lock down a bearing member on the plunger seals the bellows about a container vent opening valve seat for avoiding any leakage in such non-use position.

REFERENCES:
patent: 2702147 (1955-02-01), Brown
patent: 3785532 (1974-01-01), Cooprider
patent: 3987938 (1976-10-01), Cooperider et al.
patent: 4057177 (1977-11-01), Laauwe
patent: 4088248 (1978-05-01), Blake
patent: 4589573 (1986-05-01), Tada
patent: 4732549 (1988-03-01), von Schuckmann
patent: 4863070 (1989-09-01), Andris
patent: 4915601 (1990-04-01), von Schukmann
patent: 5014881 (1991-05-01), Andris
patent: 5238156 (1993-08-01), Andris

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