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:
Mar. 23, 1999
Filed:
Mar. 06, 1997
Masao Sakamoto, Kanagawa, JP;
Mitsumasa Iijima, Kanagawa, JP;
Unisia Jecs Corporation, Atsugi, JP;
Abstract
A universal joint constituted by a first joint, a second joint and a rolling element. The first joint is formed by friction-welding an outer race member and a connecting shaft member. The connecting shaft member has a ring-shaped connecting portion which is welded with a bottom portion of the outer race member. The connecting portion is formed to project from a recess portion of the connecting shaft member toward the outer race member. Therefore, burr generated by the friction welding between the connecting portion and the bottom surface of the outer race member is received in a space defined by the recess portion and the bottom surface of the outer race member. This facilitates removal of the burr.