The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Jan. 31, 1996
Tetsuji Hayashi, Gifu-ken, JP;
Shiniti Osawa, Gifu-ken, JP;
Kayaba Industry Co., Ltd., Tokyo, JP;
Abstract
The invention provides a pressure control valve which can be made of aluminum as much as possible and has a comparatively light weight and wherein a seat member made of steel can be force fitted into a spool of aluminum at a room temperature. The pressure control valve includes a relief valve in a spool which is formed from aluminum. A sleeve made of steel is force fitted at a room temperature into a portion of an inner face of the spool in which a seat is inserted. The end portion of the spool in which the seat is inserted is bent by caulking to prevent coming off of the seat.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile