Air operated pump

Details Air operated pump Air operated pump

1976-12-14

1978-05-30

Croyle, Carlton R.

Pumps

One fluid pumped by contact or entrainment with another

Liquid pumped by supplying or exhausting gaseous motive...

417147, F04F 108

Patent

active

040920879

ABSTRACT:
A generally elongated cylindrical pump adapted to be lowered into a fluid producing formation comprising a hollow annular outer chamber circumferentially about a hollow cylindrical inner chamber, a valve mounted in said inner chamber, a source of compressed gas adapted to be applied to said valve, a float reciprocally mounted in said inner chamber coacting with said valve to apply said compressed gas to said inner chamber when said float is raised to a predetermined height and the fluid is then forced through said outer chamber to an outlet bore; the compressed gas applied to said inner chamber is cut off when such pumping operation is completed.

REFERENCES:
patent: 2007745 (1935-07-01), Coy et al.
patent: 2209617 (1940-07-01), Thomas
patent: 2223417 (1940-12-01), Havens
patent: 3138113 (1964-06-01), Arutunoff
patent: 3415199 (1968-12-01), Elliott et al.

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