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:
Apr. 15, 1997
Filed:
Sep. 20, 1995
Hideyuki Sato, Saitama-ken, JP;
Zexel Corporation, Tokyo, JP;
Abstract
In a parallel-axis differential, pocket pairs are formed in an inner periphery of a housing and planetary gear pairs are rotatably received in the pocket pairs, respectively. With outer peripheral surfaces of the planetary gears (i.e., top faces of helical teeth) being in contact with inner peripheral surfaces of the pockets, the planetary gears are rotated relative to the housing. End portions of the helical teeth located on opposite end portions of each planetary gear are gradually reduced in height toward ends of the planetary gear. By this, top faces of end portions of those helical teeth are slightly convexly curved. The top faces of the end portions of those helical teeth are served as contact surfaces which are brought into contact with the inner peripheral surfaces of the pockets when the planetary gears are slightly inclined.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile