Double action simplex pump

Details Double action simplex pump Double action simplex pump

2010-08-17

2011-12-27

Rodriguez, William (Department: 3741)

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

C417S534000

Reexamination Certificate

active

08083506

ABSTRACT:
Embodiments of the invention provide a double action simplex pump including a pump body with a first half and a second half joined together to form an enclosed cavity. The first half includes a first pipe member and the second half includes a second pipe member. A first end of the first pipe member is a fluid inlet port and a second end of the second pipe member is a fluid outlet port. The enclosed cavity defines a first pocket and a second pocket each in fluid communication with a first lumen of the first pipe member and a second lumen of the second pipe member. A first valve assembly is positioned in the first pocket and a second valve assembly is positioned in the second pocket. Each of the first valve assembly and the second valve assembly includes a valve casing supporting an inlet poppet valve, an outlet poppet valve, and a central opening located between the inlet poppet valve and the outlet poppet valve. The central opening is aligned with one of a plunger and a diaphragm.

REFERENCES:
patent: 4079275 (1978-03-01), Fu
patent: 5141413 (1992-08-01), Bennitt
patent: 5173039 (1992-12-01), Cook
patent: 5183396 (1993-02-01), Cook et al.
patent: 6257843 (2001-07-01), Cook et al.

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