Air pressure pump with reversible power cylinder

Pumps – Motor driven – Fluid motor

Patent

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Details

417403, F04B 1700

Patent

active

055649130

ABSTRACT:
An air pressure pump with reversible power cylinder comprises a cylinder, a left cap and a right cap disposed at two sides of the cylinder. A piston passes through the cylinder. An air inlet pipe and two air outlet pipes connect the left cap. A collar has five lead holes. The collar surrounds a movable sleeve. Two ring grooves are formed on the movable sleeve. Two passages are disposed on the left cap. The right cap has a central hole to receive a pump. The pump has a central hole to support a rod. A Second valve seat is disposed at the bottom of the pump. A through hole is in the second valve seat.

REFERENCES:
patent: 3582238 (1971-06-01), Devine
patent: 5092746 (1992-03-01), Henke
patent: 5244361 (1993-09-01), Solomon
patent: 5328339 (1994-07-01), Jong

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