Fixed plate for a hydraulic valve, provided with means for eject

Details Fixed plate for a hydraulic valve, provided with means for eject Fixed plate for a hydraulic valve, provided with means for eject

1991-01-31

1992-02-18

Fox, John C.

Valves and valve actuation

Rotary valves

1374545, F16K 300

Patent

active

050886886

ABSTRACT:
A fixed plate of hard material for a hydraulic valve, of the type, mainly used in the socalled screw type faucets, which has a passage opening asymmetrically located with respect to the center of the plate, and has, on the lapped working face, a surface portion opposite the passage opening with respect to the plate center, which is situated at the same level as the surface portion surrounding the passage opening, and has another surface portion which is recessed; this recessed surface portion is open towards the periphery of the plate. Preferably the recessed portion of the plate working face is limited, with respect to the non recessed portion, by rims which, at least in part, are not concentric with respect to the geometrical center of the plate, and more preferably these rims are directed substantially radially with respect to the geometrical center of the plate.

REFERENCES:
patent: 3788601 (1974-01-01), Schmitt
patent: 4186773 (1980-02-01), Flynn
patent: 4325403 (1982-04-01), Uhlmann
U.S. patent application Ser. No. 07/524,963, filed May 18, 1990, to Grassberger.

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