US PATENT SUBCLASS 313 / 163
LIQUID ELECTRODE DISCHARGE DEVICES

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

163LIQUID ELECTRODE DISCHARGE DEVICES {9}
164  DF  .~> Shock absorber for liquid
165  DF  .~> Plural liquid electrodes
166  DF  .~> Starting band or external electrode
167  DF  .~> Apertured electrode (e.g., grid) interposed in discharge space
168  DF  .~> Plural anodes in separate envelope chambers
169  DF  .~> Plural anodes with anode arc shield
170  DF  .~> Auxiliary starting or holding electrode {1}
172  DF  .~> Liquid in contact with plural electrodes
173  DF  .~> Cathode spot anchoring

DEFINITION

Classification: 313/163

(under the class definition) Discharge devices having at least one liquid electrode.

(1) Note. Included in this and the indented subclasses are discharge devices which have mercury or mercury amalgam electrodes and discharge devices having electrodes made of material which becomes liquid only during the operation of the discharge device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7, for liquid electrode discharge devices in combination with an evacuating pump.

16, for liquid electrode discharge devices in combination with electric heater means for heating the liquid electrode.

18+, for liquid electrode discharge devices such as mercury vapor rectifiers which are provided with a metallic envelope and a casing or jacket enclosing the envelope and having means for modifying the temperature of the discharge device.

22+, for liquid electrode discharge devices provided with a casing or jacket and means for circulating a heat transfer fluid in contact with the discharge device. 29, for miscellaneous liquid electrode discharge devices with means for modifying the temperature of the liquid electrode.

33, and the subclasses specified in the notes thereto for liquid electrode discharge devices provided with an envelope and an internal temperature modifying baffle for modifying the temperature of the vapor within the envelope.

34, for liquid electrode discharge devices provided with an envelope which has condensing chamber or surface for condensing the electrode vapor into liquid form.

150, for liquid electrode discharge devices wherein the liquid electrode is movable.

328, for liquid electrode receptacles for use with liquid electrode discharge devices.

549+, for discharge devices under the class definition which are provided with means, such as a body of mercury, which is designed to be vaporized during the operation of the device to supply the gas or vapor atmosphere in the device, see subclasses 559+ where the electrode is formed of or is coated with a material (e.g., an alkali metal) which vaporizes during the operation of the device to supply the gas or vapor atmosphere in the device.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

61.05, 61.47, 80, 81.6, and 182+ for liquid contact electric switches in which an electric circuit is made through a conducting liquid.

218, High-Voltage Switches With Arc Preventing and Extinguishing Devices,

1+, for liquid contact electric switches in which an electric circuit is made through a conducting liquid. 315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for systems for supplying electrical energy to liquid electrode lamps during the starting and operating periods. See

289+, where the system includes means for generating a surge of potential during the starting period. See subclasses 327+, where the electrodes are in contact with each other during the starting. See subclasses 328+, where the discharge device is tilted to flow the liquid electrode into contact with the other electrode. See subclasses 330+ and 335+ where the device is provided with an auxiliary starting electrode.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

47+, for electromagnetically operated switches utilizing conductive liquid.