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. 20, 2007
Filed:
Feb. 20, 2004
Daniel Watson, Driftwood, TX (US);
Daniel Watson, Driftwood, TX (US);
Other;
Abstract
The thermally treated carbide materials are made by placing a carbide within a thermal control apparatus and subjecting the carbide to one or more thermal cycles. The first thermal cycles involves introducing a cryogenic material into the thermal control apparatus decreasing the carbide temperature, while preventing over-stressing of the carbide, to a first target temperature at a first temperature rate. The carbide temperature is then increased to a second target temperature at a second temperature rate. The second thermal cycle involves introducing the cryogenic material to decrease the carbide temperature, while preventing over-stressing, to a third temperature at a third temperature rate ranging. The temperature is then increased to a fourth temperature at a fourth temperature rate. The result of the process is a treated carbide without fractures.