System, method, and apparatus for valve stop assembly in a...

Details System, method, and apparatus for valve stop assembly in a... System, method, and apparatus for valve stop assembly in a...

2008-04-29

2008-04-29

Kramer, Devon C. (Department: 3746)

Pumps

Expansible chamber type

Including valve assembly, disassembly, or inspection...

C417S568000, C417S571000

Reexamination Certificate

active

10913221

ABSTRACT:
A reciprocating pump assembly has a pump housing with a crankshaft. A plunger is connected to the crankshaft for pumping a fluid through a cylinder. The cylinder has a fluid inlet port and an opening that provides access to the cylinder. A suction cover is mounted in the opening and has a hub that is coaxial with an axis of the suction cover. A suction valve stop is mounted adjacent one of the fluid ports and has a spring retainer. A column extends from the spring retainer, and a bushing is mounted to the spring retainer for engaging and being retained by the hub of the suction cover. The suction cover guides the suction valve stop in operation and, when the suction cover is removed from the opening, the suction valve stop is removable.

REFERENCES:
patent: 2776701 (1957-01-01), Denis
patent: 4861241 (1989-08-01), Gamboa et al.
patent: 6910871 (2005-06-01), Blume
patent: 7186097 (2007-03-01), Blume
patent: 1449280 (1976-09-01), None

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