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:
Oct. 01, 1991
Filed:
Mar. 12, 1990
Applicant:
Inventor:
Louis A Schwartzkopf, Mankato, MN (US);
Assignee:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; H01B / ;
U.S. Cl.
CPC ...
505-1 ; 29599 ; 148404 ; 428930 ; 505704 ; 505733 ;
Abstract
Fibers of Bi(2212) have been produce by pendant drop melt extraction. This technique involves the end of a rod of Bi(2212) melted with a hydrogen-oxygen torch, followed by lowering onto the edge of a spinning wheel. The fibers are up to 15 cm in length with the usual lateral dimensions, ranging from 20 um to 30 um. The fibers require a heat treatment to make them superconducting.