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.

Date of Patent:
Jan. 13, 2004

Filed:

Mar. 12, 2002
Applicant:
Inventor:

Chang-Wook Lee, Yongin, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 2/50630 ; F16D 1/352 ; F16D 2/512 ; F16D 4/810 ;
U.S. Cl.
CPC ...
F16D 2/50630 ; F16D 1/352 ; F16D 2/512 ; F16D 4/810 ;
Abstract

In order to minimize an effect of centrifugal force on a release operation of a clutch piston, this invention provides a return apparatus including a spring support rotating at a same speed as the clutch piston, and a return spring abutted at an end against the spring support and exerting an elastic force on the clutch piston, the elastic force increasing as the clutch piston rotating speed increases.


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