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:
Mar. 17, 1998
Filed:
Aug. 12, 1996
Applicant:
Inventor:
Charles J Groeller, Allentown, PA (US);
Assignee:
Mack Trucks, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L / ;
U.S. Cl.
CPC ...
307 108 ; 307 101 ; 315 77 ;
Abstract
A trailer voltage adapter includes a voltage converter which can be powered by the electrical system of a tractor and provide electrical power at a second voltage required by the electrical lighting system of the trailer. A plurality of relays are controlled by trailer lamp signals from the tractor and provide electrical power to the electrical lighting system of the trailer at the second voltage in accordance with the trailer lamp signals from the tractor.