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:
Jan. 14, 2014
Filed:
Oct. 07, 2010
Wataru Takamizawa, Tokyo, JP;
Wataru Takamizawa, Tokyo, JP;
JTEKT Corporation, Chuo-Ku, Osaka, JP;
Abstract
A manufacturing method of a roller bearing cage, including a cage main body formed with an annular plate, and a plurality of cage pockets opened along a circumferential direction on the cage main body for retaining rollers having flat end faces, includes punching an annular plate from a metal, forming a plurality of cage pockets on the annular plate, and pressing an edge of one of the cage pockets in a thickness direction of the annular plate on a side face of the one of the cage pockets with a press jig having a pressing face of a predetermined shape to form a chamfered portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile