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:
Dec. 04, 1984
Filed:
Jun. 10, 1982
Applicant:
Inventor:
Vernon C Westcott, Lincoln, MA (US);
Assignee:
Sensormatic Electronics Corporation, Deerfield Beach, FL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336212 ; 336215 ; 336221 ; 336232 ; 235492 ; 235493 ;
Abstract
A coil assembly with reduced anisotropy has a pancake type loop winding of one or more turns with which is interrelated one or more strips or bodies of magnetically permeable material. The permeable material provides as compared with air a lower reluctance flux path that passes through the pancake coil from one side to the other thereof. The permeable strips are shown and described generally in the shape of an open or interrupted 'cross'.