Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion
Reexamination Certificate
2005-02-22
2005-02-22
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
With mechanical sealing
Axially movable end wall or end wall portion
C418S259000, C418S268000
Reexamination Certificate
active
06857863
ABSTRACT:
A power steering pump for an automotive vehicle comprises a can housing that defines a compartment for receiving a cam plate and a pressure plate. The compartment is sealed by a cover that is threaded into an open end of the canister housing. The cover includes an annular contact that engages the pressure plate to urge the pressure plate against the cam plate. This produces a tight fit that reduces vibration and noise during pump operation. The cover also includes a central recess within the annular pressure plate contact that cooperates with the adjacent pressure plate to form a hydraulic fluid sump.
REFERENCES:
patent: 1914091 (1933-06-01), Hamilton et al.
patent: 2103180 (1937-12-01), Rice
patent: 2312886 (1943-03-01), Ellinwood
patent: 2378390 (1945-06-01), Bertea
patent: 3207077 (1965-09-01), Zeigler et al.
patent: 3320897 (1967-05-01), Eickmann
patent: 3463052 (1969-08-01), Matson
patent: 4424014 (1984-01-01), Anderson
patent: 4728272 (1988-03-01), Simonsen
patent: 4913636 (1990-04-01), Niemiec
patent: 6082986 (2000-07-01), Seward et al.
patent: 6422845 (2002-07-01), Wong et al.
patent: 6481992 (2002-11-01), Wong et al.
Bailey Brandon W.
Hartman David R.
Modrzejewski Brian S. M.
Strickler Michael D.
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