US PATENT SUBCLASS 320 / FOR 145
.~.~.~ Control by gas pressure-responsive means (320/46)

Current as of: June, 1999
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320 /   HD   ELECTRICITY: BATTERY OR CAPACITOR CHARGING OR DISCHARGING

FOR 101  DF  BATTERY CHARGING AND/OR DISCHARGING (320/2) {15}
FOR 129  DF  .~ Control responsive to predetermined conditions (320/30) {7}
FOR 142  DF  .~.~ Condition of battery charge (320/43) {2}
FOR 145.~.~.~ Control by gas pressure-responsive means (320/46)

DEFINITION

Classification: 320/FOR.145

Foreign art collection in which the sensing means include a pressure responsive device which is so connected as to respond to the pressure generated by the gas liberated by a battery being charged or discharged.