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:
Mar. 27, 2007
Filed:
Jan. 08, 2004
James Hoyt Beatty, Rockwall, TX (US);
Chris Whitesell, Richardson, TX (US);
James Hoyt Beatty, Rockwall, TX (US);
Chris Whitesell, Richardson, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A fixture () adapted to permit the heated exchange of a liner () from an operating vertical furnace (). The fixture is adapted to secure to the base of the liner () to both unlock and lower the heated liner, such as a silicon carbide liner, at an controlled rate. The fixture is also adapted to elevate a new liner into the operating vertical furnace at a controlled rate to control the rate of heating of the liner as it is inserted into the operating vertical furnace. The fixture includes an inner ring (), a low-friction Teflon® ring (), and an outer ring () permitting the rotation of the inner ring within the outer ring. Advantageously, the low friction ring comprises a flanged portion and a vertical portion allowing rotation of the inner ring within the outer ring even when elevated at extreme temperatures exceeding 500° C.