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:
Jan. 28, 1986
Filed:
Oct. 06, 1983
Applicant:
Inventor:
Donald P Dattilo, Louisville, KY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ; H02J / ;
U.S. Cl.
CPC ...
320 30 ; 320 40 ; 320 47 ;
Abstract
The inverting and non-inverting input terminals of a voltage comparator are connected across the cables of a battery charging system through R-C circuits having substantially different time constants. When the cables are disconnected from a battery being charged, the rapid increase in output voltage of the charging system momentarily reverses the relative values of voltage at the comparator inputs and produces a control signal which automatically deenergizes the battery charging system.