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:
Aug. 26, 1997
Filed:
Jan. 26, 1996
Applicant:
Inventors:
Han Zhi Peng, Hokkaido, JP;
Norio Takakura, Hokkaido, JP;
Assignee:
Dynax Corporation, Hokkaido, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ;
U.S. Cl.
CPC ...
19211336 ; 192 7012 ; 192 7014 ; 1921 / ;
Abstract
A groove structure for a wet-type friction engaging element has an approximately U-shaped cross-sectional form in which both corners of a bottom surface are deeper than an intermediate section.