.~.~ Having a spark gap or conductive composition or charge
DEFINITION
Classification: 102/202.8
Having a spark gap or conductive composition or charge:
(under subclass 202.5) Subject matter wherein the device produces an electric arc to ignite or detonate the composition or charge or the composition or charge is electrically conductive so that in an electric energized circuit the charge or composition is self-detonating or igniting.
SEE OR SEARCH CLASS
149, Explosive and Thermic Compositions or Charges.
219, Electric Heating,
383+, for nonmetal arc heating devices; and subclasses 552+ for heating element structure.
252, Compositions,
500+, for electrically conductive compositions.
313, Electric Lamp and Discharge Devices, 306+, for discharge devices having three or more electrodes; subclass 309 for discharge devices having a multi-pointed or serrated edge electrode; and subclass 325 for miscellaneous discharge devices.
314, Electric Lamp and Discharge Devices: Consumable Electrodes, generally.
315, Electric Lamp and Discharge Devices: Systems,
