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. 12, 2002
Filed:
Jul. 12, 1999
Applicant:
Inventor:
Hiroshi Yabe, Kakegawa, JP;
Assignee:
NSK-Warner K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 3/14 ; F16D 4/702 ; F16D 6/900 ;
U.S. Cl.
CPC ...
F16D 3/14 ; F16D 4/702 ; F16D 6/900 ;
Abstract
In a damper apparatus for a lock-up clutch having a spring disposed in a lock-up piston, a retainer plate and a guide member covering the spring are integrally pre-assembled to provide a unit, and the unit is disposed in the piston by a necessary torque capacity. Also, the unit holds a plurality of springs disposed in series.