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:
Apr. 29, 1986
Filed:
Aug. 02, 1985
Applicant:
Inventors:
Raymond Lippmann, Ann Arbor, MI (US);
James R Chintyan, Davison, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361117 ; 361414 ; 313325 ;
Abstract
To protect a load circuit on a printed circuit board, a pair of input circuit conductors are placed close together to form a spark gap. A load limiting resistor is placed in one of the conductors. A tape with adhesive around its perimeter is secured to the circuit board over the spark gap to trap air or other gas at the spark gap. A conformal coating covers the circuit board including the tape and the resistor.