US PATENT SUBCLASS 337 / 22
.~ Fluorescent lamp-starting devices

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
22.~ Fluorescent lamp-starting devices {3}
23  DF  .~.~> With significant heating means {1}
25  DF  .~.~> Electric discharge means (e.g., electron-emissive)
26  DF  .~.~> With significant contact structure or composition {1}

DEFINITION

Classification: 337/22

(under subclass 14) Subject matter relating to structure whereby the voltage or current applied to a fluorescent lamp device is controlled in such a manner as to establish a discharge through the lamp device.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems,

94+, especially subclass 100 for discharge devices with a thermostatic switch in the cathode heater supply circuit.