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Class Information
Number: 429/53
Name: Chemistry: electrical current producing apparatus, product, and process > Means externally releasing internal gas pressure from closed cell, i.e., valve etc.
Description: Apparatus having means to release an internal gas pressure to the exterior of a closed cell.










Sub-classes under this class:

Class Number Class Name Patents
429/56 Blowout type 283
429/54 Elastic, resilient or spring biasing valve means 165


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8709624 Energy storage device package Apr. 29, 2014
8685554 Battery system Apr. 1, 2014
8685555 Thermo-mechanically activated current interrupter Apr. 1, 2014
8679660 Electric power storage apparatus Mar. 25, 2014
8679663 Push-in turn-out vent cap for lead-acid battery Mar. 25, 2014
8668110 Venting mechanisms for containers Mar. 11, 2014
8658297 Cap assembly and secondary battery having the same Feb. 25, 2014
8658296 Rechargeable battery Feb. 25, 2014
8652699 Fuel cell system Feb. 18, 2014
8652666 Battery module Feb. 18, 2014
8647758 Electrochemical energy storage device Feb. 11, 2014
8647759 Secondary battery Feb. 11, 2014
8642196 Rechargeable battery Feb. 4, 2014
8632901 Dish shaped and pressure equalizing electrodes for electrochemical batteries Jan. 21, 2014
8617731 Film-covered battery and assembled battery Dec. 31, 2013
8617734 Pressure-relief mechanism to improve safety in lithium-polymer battery cells Dec. 31, 2013
8609293 High pressure tank valve sealing by using the elastic properties of O-rings Dec. 17, 2013
8603668 Secondary battery Dec. 10, 2013
8597823 Battery, vehicle using the battery, and battery manufacturing method Dec. 3, 2013
8597808 Battery module Dec. 3, 2013
8592063 Battery pack pressure valve Nov. 26, 2013
8586219 Film-covered battery and assembled battery Nov. 19, 2013
8580424 Rechargeable battery Nov. 12, 2013
8557416 Battery pack directed venting system Oct. 15, 2013
8557415 Battery pack venting system Oct. 15, 2013
8546005 Cap assembly and secondary battery having the same Oct. 1, 2013
8535828 Rechargeable battery Sep. 17, 2013
8524384 Rechargeable battery Sep. 3, 2013
8497030 Recycling batteries having basic electrolytes Jul. 30, 2013
8486546 Cap assembly and secondary battery using the same with notched vent member Jul. 16, 2013
8480930 Carbon aerogels for supercapacitors and method of manufacturing the same Jul. 9, 2013
8470469 Method for manufacturing a bipolar battery with a gasket Jun. 25, 2013
RE44291 Secondary battery having cap assembly Jun. 11, 2013
8449999 Safety battery cell with safety exhaust part corresponding to the electrode lead May. 28, 2013
8440335 Explosion-proof device including battery cover with rupture film positioned in valve seat for use in power batteries May. 14, 2013
8435658 Sealed cell with terminal cap and safety valve May. 7, 2013
8426048 Battery pack, electronic apparatus equipped with the same and electronic apparatus equipped with battery housing part Apr. 23, 2013
8420257 Cap assembly comprising gasket prevented from sagging Apr. 16, 2013
8420241 Sealed cell Apr. 16, 2013
8409736 Cap assembly with desirable safety performance Apr. 2, 2013
8409737 Sealed battery cell and method of manufacturing the same Apr. 2, 2013
8404375 Electrical battery comprising flexible generating elements and a system for the mechanical and thermal conditioning of said elements Mar. 26, 2013
8399114 Battery module Mar. 19, 2013
8399124 Vapor transmission resistant seal members for nonaqueous electrochemical cells Mar. 19, 2013
8383258 Cap assembly of improved safety and cylindrical secondary battery employed with the same Feb. 26, 2013
8383255 Closure assembly for electrochemical cells Feb. 26, 2013
8383256 MEMS safety valve for batteries Feb. 26, 2013
8383257 Electrochemical storage cell with blow out vents Feb. 26, 2013
8356727 Venting mechanisms for containers Jan. 22, 2013
8357462 Battery safety vent and battery with the same Jan. 22, 2013

1 2 3 4 5 6 7 8










 
 
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