Diaphragm air pump

Details Diaphragm air pump Diaphragm air pump

1975-02-27

1977-04-05

Freeh, William L.

Pumps

Expansible chamber type

Biasing means effects eduction stroke of abutment driven,...

92 84, F16J 110, F04B 1922, F04B 4504

Patent

active

040159132

ABSTRACT:
A diaphragm air pump comprising a diaphragm assembly in a housing to define therewithin a compression chamber and connecting means for transmitting an actuating force from a shaft of an engine to said assembly. The air pump includes resilient means between a diaphragm and said connecting means, thereby increasing the output of the pump at low or middle speed revolutions of the engine.

REFERENCES:
patent: 1905284 (1933-04-01), Hertzer
patent: 2022660 (1935-12-01), Flint
patent: 2055154 (1936-09-01), Mantle
patent: 2811929 (1957-11-01), Rupp
patent: 2895424 (1959-07-01), Tramontini et al.
patent: 3186343 (1965-06-01), Schneider
patent: 3372624 (1968-03-01), Rietdijk
patent: 3433263 (1969-03-01), Sebestyen

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