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:
Aug. 21, 1990
Filed:
Jun. 12, 1989
Applicant:
Inventors:
Assignee:
Vacuumschmelze GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428611 ; 428678 ; 428679 ; 428680 ; 428928 ; 340551 ; 340572 ;
Abstract
A composite member particularly suited for anti-theft security systems is composed of a core of soft-magnetic material having a nickel-iron alloy (in weight percent) of 55 through 82 nickel, 0 through 4 molybdenum, the remainder iron, or an aluminum-iron alloy having 5 through 16% aluminum, the remainder iron, with a cobalt-vanadium-iron alloy or a cobalt-chromium-iron alloy envelope for the composite member.