US PATENT SUBCLASS 315 / 112
WITH LOAD DEVICE TEMPERATURE MODIFIER

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

112WITH LOAD DEVICE TEMPERATURE MODIFIER {4}
113  DF  .~> Plural load device systems {1}
115  DF  .~> Electric heater for the load device {1}
117  DF  .~> Automatic control of the temperature modifier
118  DF  .~> Load device circuit controlled by the temperature modifying medium

DEFINITION

Classification: 315/112

(under the class definition) Systems wherein the load device in the system is provided with means for heating and/or cooling at least part of the load device structure.

(1) Note. This and the indented subclasses are not restricted to gas or vapor discharge devices and lamps as load devices or vapor, but include all discharge device systems wherein the discharge device is provided with means for heating and/or cooling the discharge devices, and the system includes means automatically operated in response to some condition affecting the operation of the load device to control the operation of the load device, or the system includes means controlled by the temperature modifying medium for altering the operation of the discharge device excepting such systems in which the discharge device load is a discharge control discharge device other than the discontinuous control type gas or vapor discharge device and the system includes means to supply current and/or potential to the discharge control means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50, for discharge devices or lamps under the class definition which are combined with means for heating and/or cooling the lamp or discharge device structure, either the lamp or discharge device, or the heating and/or cooling means being

structurally combined with an electric circuit element to form a unitary device, or the heating and/or cooling means forming an electrical circuit element, the lamp or discharge device, and the heating and/or cooling means, being structurally united to form a unitary device.

94, and indented subclasses for systems wherein the load device in the system is a discharge device provided with either (1) a thermionic cathode adapted to be heated by an electric current flowing through the cathode, or (2) a cathode of the indirectly heated type, the system including means to apply electric current to the cathode or the cathode heater element.

108, and indented subclasses, for systems having the load device in the system provided with gas or vapor pressure regulating means, the gas or vapor pressure regulating means being responsive to heat. For example, such systems wherein the load device is provided with a material which either vaporizes, or releases, or absorbs gas, when the material is heated. 111.01, for systems under the class definition where the load device is a discharge device, means being provided to supply fluent material to the discharge area between the electrodes.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

11+, for the structure of discharge devices and electric lamps which are provided with means for heating and/or cooling at least part of the discharge device or lamp.

314, Electric Lamp and Discharge Devices: Consumable Electrodes,

26, and indented subclasses, for consumable electrode discharge devices provided with temperature modifying means, and the electrical systems therefor.