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:
May. 25, 1976
Filed:
Dec. 04, 1974
Applicant:
Inventors:
Maurice James Allport, Stourbridge, EN;
David Gordon Williams, Harborne, EN;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 48 ; 320 64 ; 322 28 ; 322 99 ; 317 / ;
Abstract
A road vehicle battery charging system includes an alternator and a rectifier assembly connected to apply d.c. to the battery. A further rectifier provides d.c. to a separate line from which current is drawn for the field coil under the control of a voltage regulator. The line is connected via a series circuit including a resistor and the vehicle ignition switch to one side of the battery, this resistor forming part of a switching circuit which operates a warning lamp whenever the voltage on the separate line is substantially less than voltage on said one side of the battery.