Dosaging pump with pump bellows on bottles or the like

Details Dosaging pump with pump bellows on bottles or the like Dosaging pump with pump bellows on bottles or the like

1986-03-06

1988-03-22

Croyle, Carlton R.

Pumps

Expansible chamber type

Bellows-type chamber

417552, 92 47, 222153, 222207, 222211, 222321, F04B 4300, F04B 2104, B67D 542, B65D 8854

Patent

active

047325496

ABSTRACT:
A dosaging pump which can be placed, in particular, on bottles or the like, having a pump bellows and two valves, one of which is associated with the inlet side and the other with a nozzle. The nozzle-side valve-closure member is seated in the cover of a cap which grips over the pump bellows and the side wall of which is guided on the wall of a cup which surrounds the pump bellows, the inlet-side valve-closure member being seated in the bottom of the cup which is formed with an air-inlet opening. End folds of the pump bellows are seated on separate collars of the cup and the cap, and the end folds extend into outwardly directed protruding base support rings. A cup-bottom side of the base support rings has a sealing lip extending over the air-inlet opening in the cup bottom and the lip has a free-standing lip section resting against an inner wall of the cup.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 1029496 (1912-06-01), Garlock
patent: 2095622 (1937-10-01), Wilson
patent: 2686006 (1954-08-01), Hasselquist
patent: 3161329 (1964-12-01), Fedit et al.
patent: 4336895 (1982-06-01), Aleff
patent: 4410107 (1983-10-01), Corsette
patent: 4589573 (1986-05-01), Tada

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