Pump for liquids and gases

Details Pump for liquids and gases Pump for liquids and gases

Filed on

1986-03-06

Date issued

1989-06-20

Examiner

Smith, Leonard E.

Patent Class

Pumps

SubClass

Motor driven

SubSubClass

Fluid motor

Other Related Categories

F04B 4708

Type

Patent

Status

active

Patent number

048405469

Description

ABSTRACT:
Pump for liquids and gases, particularly for immersing in a well hole. A pump piston (35) is operated by a double acting operating piston (33) provided with working medium through a supply conduit (13). The supply of working medium to the respective sides of the operating piston (33) is controlled by a reversing valve (34). This has a slide (45) being operated by the operating piston (33).

REFERENCES:
patent: 1907949 (1933-05-01), Gage
patent: 2245501 (1941-06-01), Richardson
patent: 2260696 (1941-10-01), Wolff

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