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. 11, 1998
Filed:
Oct. 29, 1993
Applicant:
Inventor:
Michael J Berrill, Caithness, GB;
Assignee:
Rolls-Royce and Associates Limited, Derby, GB;
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01D / ; G01F / ; G01R / ;
U.S. Cl.
CPC ...
3242072 ; 32420712 ; 32420724 ; 73313 ;
Abstract
The effective operating range of an actuator magnet on a position detecting array of solid state hall effect devices improved by the use of flux concentrating elements which direct the flux along the array of sensing devices. The flux concentrating elements comprise a series of rods each avowing a magnetic permeability substantially greater than that of free space, such as soft ferrite, which are placed alignment with and between each sensing device in the array.