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. 22, 1994
Filed:
Oct. 28, 1992
Wolfgang Millauer, Munich, DE;
Manfred Spieth, Martingsried, DE;
Hilti Aktiengesellschaft, Furstentum, LI;
Abstract
A storage battery has an axially extending housing divided into axially extending blocks each containing a plurality of individual cells. The housing has a pair of plus-minus contact terminals equal to the number of blocks with the terminals accessible from the exterior of the housing. Voltage is supplied to each pair of terminals corresponding to the sum of the voltage of the cells within one block. The charging operation in the individual blocks is performed consecutively in an appropriately shaped charging device having a charging voltage corresponding to the voltage of one block. The voltage of the individual blocks can be utilized in series or in parallel connection by an appropriate electronic arrangement within an electrically driven tool.