Pressure washer having oilless high pressure pump

Details Pressure washer having oilless high pressure pump Pressure washer having oilless high pressure pump

2005-03-15

2005-03-15

Campbell, Thor (Department: 3742)

Pumps

With condition responsive pumped fluid control

Normally open bypass or relief passage closed by increased...

C092S150000

Reexamination Certificate

active

06866486

ABSTRACT:
An oilless high pressure pump suitable for use in devices such as pressure washers and the like is described. The pump includes an eccentric assembly suitable for converting rotary motion of a rotating shaft to rectilinear motion. One or more straps couple the eccentric assembly to a piston assembly. The straps communicate the rectilinear motion of the eccentric assembly to the piston assembly, reciprocating the piston assembly to pump the liquid.

REFERENCES:
patent: 4926904 (1990-05-01), Polk et al.
patent: 5871152 (1999-02-01), Saney
patent: 6431844 (2002-08-01), Dexter et al.
patent: 6467394 (2002-10-01), Wood et al.

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