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. 27, 1989
Filed:
Aug. 18, 1987
Applicant:
Inventor:
Peter L Richman, Lexington, MA (US);
Assignee:
KeyTek Instrument Corp., Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 58 ; 361111 ; 324509 ;
Abstract
Disclosed is improved apparatus for applying a test electrical surge from a surge generator to equipment under test. The apparatus includes a coupler/filter that comprises an inductor in each leg of the input power line. In order to dissipate the energy stored in the inductors as the result of a unidirectional test surge, and thereby prevent damage from undershoot to the equipment under test, the apparatus includes high voltage rectifiers across the inductors.