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:
Feb. 06, 2001
Filed:
Jan. 11, 1999
Applicant:
Inventor:
James Allan Fisher, Kettering, OH (US);
Assignee:
Fisher Data Products, Inc., Kettering, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 3/106 ;
U.S. Cl.
CPC ...
G01R 3/106 ;
Abstract
A testing surge tests all of the individual coils within a coil assembly or multi-coil winding simultaneously. A pickup device is positioned adjacent each of the coils being tested. A voltage pulse is applied across the multi-coil winding. Each of the pickup devices generates a signal having a waveform representative of the magnetic field generated by the coil adjacent thereto in response to the voltage pulse. These signals are compared to each other to identify insulation defects, winding defects and polarity problems within the coils.