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. 11, 1977
Filed:
Jul. 29, 1976
Applicant:
Inventors:
Takeshi Egami, Narberth, PA (US);
Philip J Flanders, Moorestown, NJ (US);
Assignee:
University of Pennsylvania, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148120 ; 148 3155 ; 148131 ; 75170 ;
Abstract
A nickel based amorphous alloy in elongated ribbon form is subjected to a stress in the range of 20 to 40 kilograms per square millimeter, and is heated to temperatures below the melting point, preferably in the range of 200.degree. C. Such heating under stress is maintained for a period of time, whereupon the material is cooled. There results a residual enhancement of the magnetic properties which occur by application of stress, but which are extinguished when the stress is removed.