Diaphragm pump

Details Diaphragm pump Diaphragm pump

1978-08-28

1981-02-24

Freeh, William L.

Pumps

Expansible chamber type

Plural pumping chambers

F04B 2102, F04B 3910

Patent

active

042525101

ABSTRACT:
A diaphragm pump for use with corrosive fluids. The pump comprises a pair of opposed fluid chambers each defined in part by a flexible diaphragm. The pump also includes means for reciprocally driving the diaphragms and inlet and outlet check valves. The unique structure of the pump allows all wetted components thereof to be economically formed from a substantially chemically inert material such as polytetrafluoroethylene and the like.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 915994 (1909-03-01), Myers
patent: 1062375 (1913-05-01), Tyson
patent: 1308814 (1919-07-01), Sidenstricker et al.
patent: 1965497 (1934-07-01), Johnson
patent: 2552703 (1951-05-01), Alowso
patent: 3039399 (1962-06-01), Everett
patent: 3151778 (1964-10-01), Olney et al.
patent: 3782863 (1974-01-01), Rupp
patent: 4123204 (1978-10-01), Scholle

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