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:
Apr. 15, 1997
Filed:
Oct. 13, 1994
Jill E Crumpacker, Peoria, IL (US);
Chuong Q Dam, Peoria, IL (US);
Virgil R Hester, Delavan, IL (US);
Kurtis C Kelley, Washington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A process for forming elements for use in high temperature environments includes the following steps. The process mixes metal and/or metal compounds with orthophosphoric acid and adds a filler to form a moldable material. The moldable material is dried at a temperature less than about 100 degrees to form a stable unitary mass and thereafter the temperature is increased to its 'false melt' temperature. Pressure is then subjected on the element while maintaining the element at its false melt temperature for densifying the element to a preselected porosity and deforming the element to preselected final dimensions.