Pump crosshead and connecting rod assembly

Details Pump crosshead and connecting rod assembly Pump crosshead and connecting rod assembly

2007-06-25

2009-11-03

Lazo, Thomas E (Department: 3745)

Expansible chamber devices

With linkage or transmission having relatively movable members

C092S187000

Reexamination Certificate

active

07610847

ABSTRACT:
A crosshead and connecting rod assembly for a pump comprises a connecting rod which includes a first end that is rotatably connected to the crankshaft of the pump, a second end that comprises a generally cylindrical configuration, and a shaft that extends between the first and second ends. The second end comprises at least one annular shoulder adjacent to the shaft, and the crosshead and connecting rod assembly further comprises a crosshead which includes a body that comprises a generally semi-cylindrical socket within which the second end is rotatably received and at least one trunnion that comprises a generally semi-cylindrical recess which aligns with the socket and within which the shoulder is rotatably received when the trunnion is connected to the body.

REFERENCES:
patent: 4500262 (1985-02-01), Sugino et al.
patent: 4553298 (1985-11-01), Grable
patent: 4872395 (1989-10-01), Bennitt et al.
patent: 5246355 (1993-09-01), Matzner et al.
patent: 5247873 (1993-09-01), Owens et al.
patent: 5507219 (1996-04-01), Stogner
patent: 5560332 (1996-10-01), Chang
patent: 5839888 (1998-11-01), Harrison
patent: 6571684 (2003-06-01), Nov et al.

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