Finger actuated pump assembly

Details Finger actuated pump assembly Finger actuated pump assembly

1980-02-25

1982-06-29

Weidenfeld, Gil

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222213, 222383, 239330, B67D 540

Patent

active

043368956

ABSTRACT:
A manually operable dispenser pump construction wherein liquid product is received from a supply container into an axially compressible bellows. A product discharge assembly including a valve is associated therewith and adapted to move between open discharge and closed storage valve positions by collapsing movement of the bellows. In a preferred form of the invention, the bellows includes a trigger mounted to a relatively rigid front wall portion thereof. The bellows of such form is fluid sealingly snap engaged with a housing portion of the product discharge assembly and a pivot area about which the bellows front wall and the trigger move is formed by a thin wall area of the bellows disposed below its connection with the housing.

REFERENCES:
patent: 2737329 (1956-03-01), Bolsey
patent: 2788921 (1957-04-01), Galinas
patent: 3255933 (1966-06-01), Martin
patent: 3680986 (1972-08-01), Kutik et al.
patent: 3726442 (1973-04-01), Davidson et al.
patent: 3749290 (1973-07-01), Micallef
patent: 3973700 (1976-08-01), Schmidt et al.
patent: 3995774 (1976-12-01), Cooprider et al.
patent: 3995776 (1976-12-01), Micallef
patent: 4138038 (1979-02-01), Grogan
patent: 4201317 (1980-05-01), Aleff

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