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:
Sep. 22, 2009
Filed:
Nov. 18, 2004
Roger Pellenc, Pertuis, FR;
Roger Pellenc, Pertuis, FR;
Pellenc (SA), Pertuis, FR;
Abstract
A portable self-contained electric power tool unit, includes at least three distinct sub-assemblies. The tool is characterised in that the second sub-assembly () may be carried by the user and includes a lithium-ion or lithium-polymer electrochemical battery () formed by combination of more than four cells () in series, each cell being made of one or several elements in parallel and a control and operating module () for the battery (), guaranteeing a maximum battery capacity over time in a controlled manner and an optimal use of the tool. The first sub-assembly (), during operation thereof, is subject to control by a current-limiting system (), for preserving the lithium-ion or lithium-polymer battery () from which the above draws energy and the third sub-assembly () has at least one source of electrical supply, the voltage and current of which are suitable for the recharging of the lithium-ion or lithium-polymer battery ().