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:
Feb. 17, 1981
Filed:
May. 14, 1979
Applicant:
Inventors:
Samuel Berkman, Florham Park, NJ (US);
Robert Metzl, Hamilton Square, NJ (US);
Richard E Novak, E. Windsor, NJ (US);
David L Patterson, Mountaintop, PA (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
432-5 ; 156608 ; 422248 ; 432253 ;
Abstract
A crucible for containing a melt and die for EFG growth of sapphire is supported by a pyrolytic graphite crucible support plate having the C axis of the pyrolytic graphite perpendicular to the bottom of the crucible which is supported by the plate. This thermally insulates the crucible from the pedestal which supports the support plate.