Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1996-07-29
1998-11-17
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 34, 429 39, H01M 212, H01M 1206
Patent
active
058373942
ABSTRACT:
The invention momentarily operates one or more tiny electronic semiconductor microactuator valve systems which operate a slide or flexing gate or gates disposed over the gas entrance hole or holes either on an appliance powered by a gas depolarized battery which has a sealed case or portion of a case, or disposed over an aperture in a gas depolarized battery. By such disposition, the entrance of oxygen from air (or other reacting fluid, either gaseous or liquid), to the gas (for example, air) depolarized electrochemical battery is only permitted when the battery is supplying electrical power to a load or when desired. By using two semiconductor microactuators, or a single microactuator with a ratcheting mechanism, the valve system only need be operated momentarily, usually when the appliance is turned on to open the valve system, and when it is turned off to close the valve system. Power for the valve is preferably derived from the battery itself but could be provided by a separate source. These tiny valves can operate or act as a safety pressure vent and as a safety fuse as well. When electrical power is not required from the battery, the valve system excludes entry of harmful impurities and unneeded fluid reactants thereby increasing the life of the battery during storage and intermittent use. The combination is also useful when the battery is designed to be recharged. Other electronic control or flow control means can be incorporated in the chip to create a truly intelligent control device.
REFERENCES:
patent: 4969938 (1990-11-01), America
patent: 5541016 (1996-07-01), Schumm, Jr.
Kalafut Stephen
Schumm Elizabeth
Schumm Kari J.
Schumm, III Brooke
Schumm, III Brooke
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