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:
Sep. 23, 2014
Filed:
Sep. 13, 2011
Jin Hyun Kim, Seoul, KR;
Chang Kook Chae, Suwon-si, KR;
Heung Seok Lee, Seoul, KR;
Suk IL OH, Suwon-si, KR;
Wan Soo OH, Yongin-si, KR;
Kwang Min Won, Gunpso-si, KR;
Jin Hyun Kim, Seoul, KR;
Chang Kook Chae, Suwon-si, KR;
Heung Seok Lee, Seoul, KR;
Suk Il Oh, Suwon-si, KR;
Wan Soo Oh, Yongin-si, KR;
Kwang Min Won, Gunpso-si, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
An apparatus for reducing transmission shock of an automatic transmission may include a piston operated by a control pressure, a clutch performing a clutching operation by an operation of the piston, and a cushion spring arranged between the piston and the clutch which varies by stages in stiffness of the spring with an operating position of the piston. The cushion spring may be formed with one or more sets of a plurality of curved-surface springs bent in an operating direction of the clutch and connected with each other, each set of the plurality of curved-surface springs having a different bending height.