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. 23, 1982
Filed:
Jun. 22, 1981
Applicant:
Inventors:
Nicholas F Gubitose, Moosic, PA (US);
Malcolm R Schuler, Mountaintop, PA (US);
David L Patterson, Wall, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
422246 ; 156D / ;
Abstract
There is disclosed apparatus for growing a ribbon of crystalline material which apparatus comprises a furnace adapted to contain a melt from which the ribbon is to be grown and crystal pulling means spaced from the furnace and including crystal seed holding means and sliding means moving said crystal seed holding means toward and away from the furnace. Extending between the furnace and the crystal seed pulling means are inner and outer bellows means spaced apart from each other to define a space therebetween. This space may be purged with an inert gas when pulling crystal.