Double acting pump

Details Double acting pump Double acting pump

1994-10-31

1996-09-17

Freay, Charles G.

Pumps

Expansible chamber type

Plural pumping chambers

417571, 137528, 92138, F04B 1100

Patent

active

055562671

ABSTRACT:
A pump has an extruded metal housing surrounding a square internal chamber accommodating a piston assembly with square pistons. An eccentric member and block assembly associated with a driven shaft reciprocates the piston assembly to pump fluid. The flow of fluid into and out of the pumping chamber is controlled with intake and exhaust valves incorporated into plates mounted on opposite ends of the housing.

REFERENCES:
patent: 3456874 (1969-07-01), Graper
patent: 3776667 (1973-12-01), Berglund et al.
patent: 4610609 (1986-09-01), Milborn, Jr.
patent: 4657488 (1987-04-01), Weinhandl

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