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:
Jul. 20, 2010
Filed:
Dec. 12, 2006
Todd Sturgin, Shreve, OH (US);
Scott Schrader, Canton, OH (US);
Marc Mcgrath, Strasburg, OH (US);
LuK Lamellen und Kupplungsbau Beteiligungs KG, Buehl, DE;
Abstract
The present invention broadly comprises a torque transfer apparatus for a torque converter including at least one connection element attached to an inner circumferential surface for a cover of the converter; a lock-up clutch, and at least one resilient element connected to the connection element and the piston plate. The clutch includes a piston plate with extruded rivets and the resilient element is connected to the piston plate with the extruded rivets. In some aspects, the clutch includes a friction material having inner and outer radii and the extruded rivets are disposed at a radial distance greater than the inner radius; the extruded rivets are disposed between the inner and outer radii; a radial segment for the connection element extends radially from the inner surface and has an edge at a greater radial distance than the inner radius; or the resilient element is between the inner and outer radii.