Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2005-11-22
2005-11-22
Michalsky, Gerald A. (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S625690
Reexamination Certificate
active
06966339
ABSTRACT:
A spool valve arrangement with a cylinder is fitted with a clearance fit in a cylinder bore in a housing of the spool valve arrangement. The housing has first pressure medium ports and the cylinder has second pressure medium ports. A socket is inserted through each first pressure medium port in the housing and each second pressure medium port in the cylinder. The socket has a small diameter part, which is fitted with a clearance fit in the second pressure medium port, and a large diameter part, which is engaged with a shoulder formed in the first pressure medium port. By screwing a conduit end in the first pressure medium port, the socket is held in the mounted position, thus providing a seal of the region of this port and also providing an anti-rotation effect on the cylinder relative to the housing.
REFERENCES:
patent: 3580287 (1971-05-01), McLaughlin
patent: 4540158 (1985-09-01), Jungen
patent: 4993684 (1991-02-01), Prina
patent: 2003/0201020 (2003-10-01), Kulmann
patent: 8-233132 (1996-09-01), None
patent: 9-229214 (1997-09-01), None
patent: 11-201304 (1999-07-01), None
patent: 11-223267 (1999-08-01), None
patent: 2000-178447 (2000-06-01), None
patent: 2001-41331 (2001-02-01), None
Oniduka Toshiki
Sawada Tsutomu
Watanabe Tsuyoshi
Bacon & Thomas
Iwaki Co. Ltd.
Michalsky Gerald A.
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