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Class Information
Number: 429/54
Name: Chemistry: electrical current producing apparatus, product, and process > Means externally releasing internal gas pressure from closed cell, i.e., valve etc. > Elastic, resilient or spring biasing valve means
Description: Apparatus wherein the release means is either an (a) elastic, (b) resilient, or (c) spring, biasing valve structure.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7544439 |
Venting water-tight battery-operated devices |
Jun. 9, 2009 |
| 7527890 |
Sealed alkaline storage battery, electrode structure and charging method for the same, and charger for sealed alkaline storage battery |
May. 5, 2009 |
| 7527891 |
Seal for an electrochemical cell |
May. 5, 2009 |
| 7521148 |
Cap assembly and secondary battery utilizing the same |
Apr. 21, 2009 |
| 7378180 |
Air electrode batteries |
May. 27, 2008 |
| 7228875 |
Seal and bleed valve unit for electric batteries |
Jun. 12, 2007 |
| 7122270 |
Electrochemical cell having venting current collector and seal assembly |
Oct. 17, 2006 |
| 7101640 |
Screw-in vent plug for lead-acid batteries |
Sep. 5, 2006 |
| 7074516 |
Vent for cylindrical electrochemical batteries |
Jul. 11, 2006 |
| 7007715 |
Pressure release valve |
Mar. 7, 2006 |
| 6953637 |
Catalytic hydrogen vent filter for batteries |
Oct. 11, 2005 |
| 6949310 |
Leak proof pressure relief valve for secondary batteries |
Sep. 27, 2005 |
| 6924059 |
Rechargeable lithium battery |
Aug. 2, 2005 |
| 6878481 |
Method and apparatus for regulating charging of electrochemical cells |
Apr. 12, 2005 |
| 6855454 |
Electrochemical cell having venting current collector and seal assembly |
Feb. 15, 2005 |
| 6777128 |
Secondary battery and fabrication method thereof |
Aug. 17, 2004 |
| 6730430 |
Explosion-proof safety structure for column shape lithium battery |
May. 4, 2004 |
| 6713208 |
Vent valve and a storage cell including it |
Mar. 30, 2004 |
| 6689506 |
Sealed alkaline storage battery with safety vent unit |
Feb. 10, 2004 |
| 6610438 |
Seal type storage battery |
Aug. 26, 2003 |
| 6596434 |
Cylindrical type alkaline storage battery |
Jul. 22, 2003 |
| 6579640 |
Sealed rectangular battery and manufacturing method for the same |
Jun. 17, 2003 |
| 6528202 |
Safety vent device used in a battery module |
Mar. 4, 2003 |
| 6509115 |
Secondary battery having cap assembly |
Jan. 21, 2003 |
| 6465122 |
Storage battery and method of fabricating the same |
Oct. 15, 2002 |
| 6413666 |
Battery with a sheathing member to prevent leakage of electrolytic solution |
Jul. 2, 2002 |
| 6376119 |
Plug system for capping cell vents in a storage battery and a battery cap for use in the plug system |
Apr. 23, 2002 |
| 6372377 |
Mechanical and thermal improvements in metal hydride batteries, battery modules and battery packs |
Apr. 16, 2002 |
| 6338915 |
Hermetically sealed storage battery |
Jan. 15, 2002 |
| 6326099 |
Impact modified polystyrene gaskets for electrochemical cells |
Dec. 4, 2001 |
| 6306537 |
Impact modified polystyrene seals for galvanic cells |
Oct. 23, 2001 |
| 6304430 |
Space saving mobile device |
Oct. 16, 2001 |
| 6294283 |
Electrochemical cell having low profile seal assembly |
Sep. 25, 2001 |
| 6294282 |
Two way battery vent cap using cup valves |
Sep. 25, 2001 |
| 6274264 |
Cell current cutoff mechanism |
Aug. 14, 2001 |
| 6274263 |
Semi-flooded lead acid battery cell |
Aug. 14, 2001 |
| 6261713 |
Delivery system for inorganic sunscreens |
Jul. 17, 2001 |
| 6242126 |
Explosion-proof seal plate for enclosed type cell and production method thereof |
Jun. 5, 2001 |
| 6235419 |
Sealed storage battery |
May. 22, 2001 |
| 6210824 |
Current interrupt apparatus for electrochemical cells |
Apr. 3, 2001 |
| 6146784 |
Vent plug having an integal seal |
Nov. 14, 2000 |
| 6136464 |
Battery and safety device therefor |
Oct. 24, 2000 |
| 6080505 |
Electrochemical cell safety vent |
Jun. 27, 2000 |
| 6071637 |
Sealed casing for containing an electric accumulator |
Jun. 6, 2000 |
| 6063518 |
Sealed electrochemical cell equipped with a circuit-breaking terminal |
May. 16, 2000 |
| 6051332 |
Valve cap for an electric storage cell |
Apr. 18, 2000 |
| 6040085 |
Battery packaging |
Mar. 21, 2000 |
| 6022635 |
Electrochemical cell having a moisture barrier |
Feb. 8, 2000 |
| 6004694 |
Flat accumulator device having an electrochemical cell and electrical contacts |
Dec. 21, 1999 |
| 5985478 |
Pressure responsive cap assembly for rectangular battery |
Nov. 16, 1999 |
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