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Browse by Category: Main > Chemistry
Class Information
Number: 429/64
Name: Chemistry: electrical current producing apparatus, product, and process > With control means responsive to battery condition sensing means > Electrolyte feeding control from reserve supply > Having valve in control
Description: Apparatus having valve means as a part of the sensing or control means.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8685554 Battery system Apr. 1, 2014
8632901 Dish shaped and pressure equalizing electrodes for electrochemical batteries Jan. 21, 2014
8557414 Control, collection and use of metal-air battery pack effluent Oct. 15, 2013
8298692 Collection, storage and use of metal-air battery pack effluent Oct. 30, 2012
8178226 Film-covered electric device and method of manufacturing same May. 15, 2012
8153289 Secondary battery Apr. 10, 2012
8088506 Fluid consuming battery with fluid regulating system Jan. 3, 2012
RE42611 Continuous battery charger system Aug. 16, 2011
7964300 Battery pack Jun. 21, 2011
7726975 Lithium reservoir system and method for rechargeable lithium ion batteries Jun. 1, 2010
7556056 Single point battery watering system with pivot float and ball valve Jul. 7, 2009
7501197 Cap assembly and secondary battery with same Mar. 10, 2009
7432010 Battery Oct. 7, 2008
7392820 Liquid shut-off valve Jul. 1, 2008
7172831 Battery system for automotive vehicle Feb. 6, 2007
7147945 System for determining a gas composition within a shut down fuel cell power plant and method of operation Dec. 12, 2006
7040431 Fuel cell hybrid vehicle with automatically watered aqueous batteries May. 9, 2006
7029786 Single point watering apparatus for lead-acid battery Apr. 18, 2006
6887609 Fuel cell system and method for operating the fuel cell system May. 3, 2005
6475655 Fuel cell system with hydrogen gas separation Nov. 5, 2002
6303246 Hermetically sealed cell and sealing body Oct. 16, 2001
6242125 Battery circulation system with improved four-way valve Jun. 5, 2001
6228525 Battery cell plug May. 8, 2001
6106968 Smart valve regulated lead acid battery with embedded electronic monitoring and fluid fill system Aug. 22, 2000
6093503 Non-aqueous electrolyte lithium secondary cell Jul. 25, 2000
6074775 Battery having a built-in controller Jun. 13, 2000
5914201 Filling fixture for electric vehicle cell Jun. 22, 1999
5902694 Water top-up plug for batteries containing a liquid electrolyte May. 11, 1999
5862830 Water replenishing plug for a battery containing a liquid electrolyte Jan. 26, 1999
5832946 Low profile battery refill system Nov. 10, 1998
5813838 Optimum electrolyte level sensing method and the automatic topping up apparatus for storage wet cell Sep. 29, 1998
5780186 High performance zinc anode for battery applications Jul. 14, 1998
5453334 Automatic battery watering system Sep. 26, 1995
5439758 Electrochemical power generating system Aug. 8, 1995
5415949 Metal-air cell and power system using metal-air cells May. 16, 1995
5340667 Battery recirculation and recharge system Aug. 23, 1994
5309937 Float valve for filling systems, in particular, for filling electric traction batteries May. 10, 1994
5284176 Battery refill system Feb. 8, 1994
5212867 Method and unit for filling electrochemical cells May. 25, 1993
5162168 Automatic voltage control system and method for forced electrolyte flow batteries Nov. 10, 1992
5090442 Field repairable apparatus for use in filling containers to a predetermined level Feb. 25, 1992
4820598 Activatable battery using the Li/SOCl.sub.2 or Li/SO.sub.2 Cl.sub.2 couples Apr. 11, 1989
4751156 Cap for accumulator elements with device for automatic filling Jun. 14, 1988
4749633 Battery watering device Jun. 7, 1988
4696874 Plug for cells of electrical storage batteries Sep. 29, 1987
4517261 Hydrogen gas relief valve May. 14, 1985
4414292 Metal halogen battery system Nov. 8, 1983
4413040 Hydrogen/halogen reactor system for metal halogen batteries Nov. 1, 1983
4386141 Watering device for batteries May. 31, 1983
4353968 Battery water-filling systems and check valves therefor Oct. 12, 1982

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