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. 08, 1991
Filed:
Oct. 12, 1989
Applicant:
Inventors:
Takao Tashiro, Tochigi, JP;
Osamu Ishikawa, Tochigi, JP;
Assignee:
Viscodrive Japan Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
475 85 ; 475 89 ;
Abstract
In a differential gear apparatus provided with a differential limitation mechanism, to prevent a washer interposed between the differential case and the coupling case from being seized by heat when viscous fluid is sheared into high temperature and pressure, the coupling case is formed integral with a first output shaft to increase rigidity of the coupling case. Further, it is preferable to form an inner hub integral with a second output shaft to increase rigidity of the inner hub.