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:
Aug. 25, 2009
Filed:
Jun. 10, 2005
Tadashi Okuto, New York, NY (US);
Tadashi Okuto, New York, NY (US);
Other;
Abstract
A temperature sensor () and a heating device () are provided to prevent moisture from freezing i a direct methanol fuel cell (). To achieve this, a secondary battery () is connected in parallel to the fuel cell. When the temperature drops to a predetermined level, the secondary battery, using electricity it as stored from the fuel cell, heats a ceramic device. This device is located near the fuel cell, the fuel container (), or both. When the fuel cell again reaches the desired temperature, it begins normal operations and also recharges the secondary battery. The heating system is prevented from working if a fuel container is not installed in a battery pack or if the battery pack is not connected to an electronic device or if that electronic device is turned off.