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:
Jul. 20, 1993
Filed:
Aug. 16, 1991
Applicant:
Inventors:
Raymond G Seidensticker, Forest Hills, PA (US);
Richard J Ravas, Penn Twp., Westmoreland County, PA (US);
George V Hall, Bethel Park, PA (US);
James P McHugh, Wilkins Twp., Allegheny County, PA (US);
Frank L Przywarty, Jefferson Boro, PA (US);
Lynd R McCormick, Union Twp., Washington County, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
422249 ; 422106 ; 156601 ; 1566171 ; 1566261 ; 156D / ;
Abstract
A melt replenishment system for dendritic web growth having a pellet feed arrangement, which distributes equal amounts of feed material to a pair of feed tubes in communication with opposite ends of a crucible to maintain a melt pool at a constant level and a cover gas system, which keeps the feed tubes flowing and helps maintain thermal consistency within the melt.