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:
Sep. 30, 1980
Filed:
Mar. 13, 1978
Applicant:
Inventor:
Louis M Sandler, North Reading, MA (US);
Assignee:
Emhart Industries, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 56 ; 307351 ; 328115 ; 3302 / ; 361 91 ;
Abstract
Disclosed herein is an improved means for detecting a half-cycle voltage crest of an alternating voltage waveform which includes means for protecting the detecting means from current surges associated with the initial random application of the alternating voltage waveform to the detecting means.