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:
Nov. 15, 1977
Filed:
Sep. 02, 1975
Applicant:
Inventor:
Friedrich M Forster, D-7410 Reutlingen, DT;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335219 ; 33358 ; 361146 ;
Abstract
Compensating magnets are located on the article being tested which are adjustable to provide a range of magnetic moments. In a first version, each compensating magnet consists of an annular permanent magnet received on a rod-like element positioned on the surface of the article, which magnet is adjustable with respect to the article surface. In a second version, the magnet is located at a fixed spacing with respect to the article surface and a shunt is adjustable to vary the compensating field.