US PATENT SUBCLASS 313 / 151
.~ Thermal actuator


Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

146  DF  WITH MOVABLE ELECTRODE OR SHIELD {6}
151.~ Thermal actuator


DEFINITION

Classification: 313/151

(under subclass 146) Devices having thermally operable means for moving the electrode or shield.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146+, for movable electrode discharge devices in which an electrode is moved by the blast of gas or fluid which results from vaporization or thermal expansion of the gas or fluid due to the presence of a space discharge. Such thermal vaporization or expansion is not deemed to be "thermally actuated" for subclass 151.

SEE OR SEARCH CLASS

314, Electric Lamp and Discharge Devices: Consumable Electrodes,

89+, for discharge devices of the consumable electrode type (e.g., arc lamps) which are provided with a thermostatic

means for moving the electrodes. 315, Electric Lamp and Discharge Devices: Systems,

39.59, for discharge devices having an electrode formed so as to provide a structure having distributed inductance and capacitance and operable in a magnetic field (e.g., magnetrons), the device having thermally actuated means for varying the tuning of the reactive structure, subclasses 331+, for systems for supplying electrical energy to discharge devices of the gas or vapor type including those which are provided with a liquid electrode where the discharge device is provided with an auxiliary starting electrode which is moved into contact with and then separated from one of the principal electrodes by thermostatic means to start the discharge device.