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:
Aug. 31, 1993
Filed:
Jun. 10, 1988
Walter J Diederich, West Newbury, MA (US);
Robert E Nelson, Weston, MA (US);
TPV Energy Systems, Inc., Waltham, MA (US);
Abstract
A process for producing a sturdy refractory metal oxide article includes the steps of heating a substrate of organic material impregnated with a metal compound to thermally decompose the compound without substantial thermal decomposition of the substrate, further heating to decompose and remove the organic material and complete conversion of the compound to a metal oxide so that a metal oxide replica of the substrate remains and further heating to sinter and densify the replica such that the replica has a strength (shock resistance) figure of merit of at least three g-meters and the replica retains such strength after heating to 1500 C.