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:
Jul. 20, 1982
Filed:
Oct. 17, 1979
Applicant:
Inventors:
Assignee:
McNeil Corporation, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ; H02K / ; H02H / ;
U.S. Cl.
CPC ...
324 51 ; 29593 ; 310 71 ; 324 54 ; 361 33 ;
Abstract
An electrically surge protected motor having a submersible housing (10) can be manufactured and tested for insulation weaknesses by first assembling the motor components in the housing (10) without completing a path to ground therethrough. Then the windings (11, 12) of the motor may be subjected to a voltage surge greater than the voltage magnitude at which the motor is to be surge protected. After completion of the test, a path to ground through an impedance device (17) which establishes the voltage magnitude at which the motor is to be protected may be completed. Several alternative grounding devices (23, 24, 25, 26 or 28) may be provided externally of the housing (10).