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:
Dec. 16, 1980
Filed:
Mar. 29, 1978
Applicant:
Inventors:
David C Kilinskis, Chicago, IL (US);
Louis J Vassos, Park Ridge, IL (US);
Assignee:
Skil Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 23 ; 320 35 ; 320 59 ; 320D / ;
Abstract
A battery charging circuit is operable for recharging batteries in both trickle and fast charge modes. The fast charge mode is initiated and maintained by enabling a silicon controlled rectifier in circuit between a current source and the battery. A capacitor maintains the SCR in the operative state until the battery reaches full charge. A thermostatically controlled switch terminates the fast charge mode. The battery is then trickle charged for an indefinite period. Reversion to the fast charge mode is prevented by discharging the capacitor associated with the SCR when the thermostatically controlled switch opens.