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. 18, 1992
Filed:
May. 02, 1990
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
A number of embodiments of fuel cells including a storage battery which can intermittently supply electrical power to a load. In such embodiment, water vapor generated from the operation of the fuel cell is condensed, purified and returned to the storage battery to replace the water consumed from the electrolyte from the battery operation. The water vapor is reclaimed by a series of condensers and is returned to a purifier. In some embodiments the reclaimed water vapor is delivered to the battery by an intermittently operated pump while in other embodiments the water vapor is returned by a continuously operated pump through some form of overflow device to ensure against dilution of the electrolyte in the battery.