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. 20, 1989
Filed:
Mar. 08, 1988
Applicant:
Inventor:
Franz Latka, Niddatal, DE;
Assignee:
Alfred Teves GmbH, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
307 101 ; 303 11 ; 303 65 ; 340452 ;
Abstract
A safety relay circuit for operating electric systems of automotive vehicles is disclosed. The circuit includes two series-connected change-over relays connecting the vehicle's electrical system to the operative voltage. The change-over relays are actuated by switches acted upon by a control circuit. The control circuit assures that the change-over relays are actuated alternatively.