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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 189
429/54 Elastic, resilient or spring biasing valve means 143


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
4613550 Venting system for electric storage batteries Sep. 23, 1986
4601959 Vent construction for batteries Jul. 22, 1986
4592970 Electrochemical cell having a safety vent closure Jun. 3, 1986
4572877 Hermetic seal for an electrochemical cell Feb. 25, 1986
4567118 Cell vent Jan. 28, 1986
4562123 Liquid fuel cell Dec. 31, 1985
4529673 Electrochemical cell having a safety vent closure Jul. 16, 1985
4517261 Hydrogen gas relief valve May. 14, 1985
4517262 Vent for a storage battery May. 14, 1985
4483908 Intumescent material-coated galvanic cells Nov. 20, 1984
4482613 Cell with safe venting electrolyte Nov. 13, 1984
4439500 Gas switch Mar. 27, 1984
4437231 Method of making an electrochemical cell having a safety vent closure Mar. 20, 1984
4436795 Alkaline electric storage cells Mar. 13, 1984
4431716 Heat activated vent Feb. 14, 1984
4430392 Heat activated vent Feb. 7, 1984
4425412 Lead/acid battery having horizontal plates Jan. 10, 1984
4418127 Battery cell module Nov. 29, 1983
4403019 Venting system for electric storage battery Sep. 6, 1983
4401730 Sealed deep cycle lead acid battery Aug. 30, 1983
4397919 Explosion resistant battery cells Aug. 9, 1983
4360572 Electrochemical cell Nov. 23, 1982
4338382 Battery safety terminal Jul. 6, 1982
4329406 Specific gravity transducer and battery performance indicator May. 11, 1982
4327157 Stabilized nickel-zinc battery Apr. 27, 1982
4308322 Battery cell and electrolyte circulation pump Dec. 29, 1981
4227701 Rupturable sealing structure of cell Oct. 14, 1980
4224383 Rechargeable battery pack Sep. 23, 1980
4209572 Vented plug for storage batteries Jun. 24, 1980
4192908 Mass-transport separator for alkaline nickel-zinc cells and cell Mar. 11, 1980
4184010 Method for preventing explosion in thionyl chloride depolarizer cells Jan. 15, 1980
4181778 Novel battery anode Jan. 1, 1980
4072540 Rechargeable electrical energy storage device Feb. 7, 1978
4010405 Electrolytic capacitors with pressure-relief and electrode structure retaining means Mar. 1, 1977
4010406 Electrolytic capacitors with pressure-relief and metal electrode structure retaining means Mar. 1, 1977
4007060 Plastic case for flat rechargeable cell Feb. 8, 1977
4002496 Catalytic device for storage battery Jan. 11, 1977
3994749 Vent valve for nickel-cadmium energy cells Nov. 30, 1976

1 2 3 4 5


 
 
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