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:
Jul. 19, 1988
Filed:
Jun. 19, 1987
Applicant:
Inventor:
Gerhard Lang, Altweilnau, DE;
Assignee:
Braun Aktiengesellschaft, Kronberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 48 ; 320 13 ; 340636 ;
Abstract
The invention is directed to a discharge indicating means for a storage battery (B) in which a choke (L) and a first transistor (T1) are connected to the storage battery via a switching device (S). The base of a second transistor (T2) arranged between the base of the first transistor (T1) and reference potential is controlled such that the circuit arrangement will start oscillating and an indicating device connected in parallel with the first transistor (T1) will light when the battery voltage (UB) has dropped below a predetermined threshold.