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:
Nov. 27, 2007
Filed:
Sep. 23, 2005
Compressive fatigue and energy test apparatus and method for testing clutch plate friction materials
Timothy J. Reinhart, Brownsburg, IN (US);
Kerry W. Stadtfeld, Greenwood, IN (US);
Timothy J. Reinhart, Brownsburg, IN (US);
Kerry W. Stadtfeld, Greenwood, IN (US);
General Motors Corporation, Detroit, MI (US);
Abstract
The present invention presents a means for simultaneously testing the compressive strength and measuring the thermal energy dissipated by a given friction material during slip. The testing apparatus includes a rotatable flywheel that rotates a transmission reaction plate to simulate a typical reaction plate in a vehicle transmission assembly. A plurality of test samples selectively interact with the reaction plate while being elevated by hydraulically actuated cylinders. The thermal energy dissipated between the reaction plate and each test sample is measured for each test sample. A method for accomplishing the same for a bill-of-design reference is also included.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile