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:
Jun. 30, 1992
Filed:
Dec. 18, 1990
Applicant:
Inventor:
Jack E Howard, Gardnerville, NV (US);
Assignee:
Bently Nevada Corporation, Minden, NV (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01N / ; G01R / ;
U.S. Cl.
CPC ...
32420712 ; 32420716 ; 32420725 ; 324225 ;
Abstract
A small diameter proximity coil for use in proximity sensors to sense imbalance in rotating machinery which has a coil of less than 0.3 inch diameter is constructed of a silver/palladium alloy of 89% silver and 11% palladium. This provides for, because of the inherent balancing out of AC and DC resistance changes, temperature errors of less than 10% over a wide temperature range of operation.