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. 13, 2005
Filed:
May. 19, 2003
Applicant:
Aaron J. Rositch, Edgerton, WI (US);
Inventor:
Aaron J. Rositch, Edgerton, WI (US);
Assignee:
Rovcal, Inc., Madison, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J007/04 ;
U.S. Cl.
CPC ...
Abstract
A rechargeable electrochemical cell is provided having a pressure-responsive apparatus for determining a charge termination point. In particular, a reversible pressure-responsive switch may be disposed in a rechargeable cell. A sensor determines when the switch has reacted in a predetermined manner, thus indicating that the internal pressure within the cell has reached a predetermined threshold. The sensor is part of sensing circuitry that is linked to a charger having automatic charging modes depending on the status of the sensing circuit.