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:
Jun. 23, 2009
Filed:
Dec. 13, 2007
Van T. Walworth, Lebanon, TN (US);
Joseph C. Bacarella, LaSalle, MI (US);
David B. Hook, Franklin, TN (US);
William Mcginn, Paragould, AR (US);
Van T. Walworth, Lebanon, TN (US);
Joseph C. Bacarella, LaSalle, MI (US);
David B. Hook, Franklin, TN (US);
William McGinn, Paragould, AR (US);
Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);
Abstract
A method of forming metal parts or components from strip stock or roll stock without yielding is accomplished by first placing the part/components into fixtures that hold the stock in a non-yielding position therein. The fixture and metal stock parts are placed in a liquid, gas, or pack carburizing heat treatment process. Once the carburization process is complete, the part is released from the fixture with little or no spring back, maintaining the shape it was held in while in the fixture, resisting returning to its original shape, and optionally imparting spring-like qualities not associated with the stock before treatment.