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:
Sep. 17, 1991
Filed:
Dec. 17, 1990
Leslie L Harner, Ruscombmanor Township, Berks County, PA (US);
Gregory J Del Corso, Brecknock Township, Berks County, PA (US);
Carpenter Technology Corporation, Reading, PA (US);
Abstract
In a process for making a low thermal expansion, high thermal conductivity member or article suitable for bonding to a support member at a predetermined bonding temperature and for facilitating heat transfer therefrom, and in the member made thereby, first and second metal powders are combined in volumetric proportions to provide an approximation to desired thermal expansion and thermal conductivity characteristics. The powder mixture is then consolidated in a controlled manner to provide a shaped member having a thermal expansion characteristic curve that essentially matches that of the support member from about 30.degree. C. up to the bonding temperature. Consolidation of the metal powder mixture is controlled by selecting a density for the consolidated powder that results in the close expansion match over the temperature range and then consolidating the metal powder mixture to that density.