(under the class definition) Subject matter including (a) means to direct the flow of fluent material into the discharge area of a discharge device, (b) means to direct the flow of fluent material into contact with some part of the device, (c) means to direct the flow of gas vapor or smoke generated by an electrode in the operation of the device, or (d) means to direct the flow of gases or vapors which are caused to circulate due to having been heated by an electrode, the space discharge, or other part of the device.
(1) Note. This subclass includes both lamps and space discharge devices with fluent material flow directing means. The space discharge devices in this and indented subclasses are not restricted to discharge devices having discharge electrodes but include discharge devices with an electrodeless discharge, for example, an induction-type discharge device.
(2) Note. Smoke as used in this subclass includes all particles given off by the filament or an electrode in the operation of the device.
(3) Note. Patents disclosing incandescent lamps and discharge devices having an envelope enclosing a gas or vapor, the device being provided with means to direct the flow of the gas or vapor which circulates within the envelope due to the gas or vapor becoming heated are cross-referenced to this subclass.
(4) Note. See the class definition for a reference to other classes which provide for the treating of fluids with ray energy, electrons, or ions generated by space discharge devices or lamps.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33, where the device is provided with an envelope and in
internal temperature modifying baffle. 34, where the device is provided with an envelope which has a condensing chamber or surface for condensing the vapors within the envelope.
35+, for devices which are provided with means for directing the flow of a temperature modifying fluid to some part of the device.
120, for spark plugs provided with means to supply fluid from the exterior of the spark plug to the electrode chamber (e.g., with a priming cup).
143, for spark plugs having the electrode chamber shaped so as to direct the flow of gas or vapor.
359.1+, for ion generators with means for accelerating the ions.
564, where the device is provided with an envelope and contains a getter or a gas or vapor generating material within the envelope and is provided with means for causing the material deposited from the getter or vapor to deposit in a particular place within the device.
609+, for discharge devices which are provided with an envelope containing a gas or vapor and which have a partition, baffle, constricting means, or a portion of the envelope wall between the discharge electrodes to alter the direction of the discharge or to constrict the area of the discharge path within the device.
626, for devices which are provided with an envelope containing a gas or vapor and which have shielding means for the electrode lead-in or electrode support to prevent the deposited material from being deposited in contact with the electrode lead-in or support.
SEE OR SEARCH CLASS
96, Gas Separation: Apparatus,
15+, for electrostatic precipitators having analogous structure.
250, Radiant Energy, 251, for devices for producing and propagating a unidirectional stream of neutral molecules or atoms through a vacuum, usually with thermal velocity; subclasses 281+ for methods and apparatus for ionic separation or analysis; especially subclass 288 which includes a sample supply or invisible radiation responsive gas; subclasses 379+ for discharge device apparatus which includes means to supply the gas into the discharge devices; subclasses 396+ for means to deflect, scan, spread, or focus a performed beam of ions; and
subclasses 423+ for ion generation methods and apparatus in which a material is treated or irradiated.
314, Electric Lamp and Discharge Devices: Consumable Electrodes,
20, for discharge devices of the consumable electrode type (e.g., arc lamps) which are provided with means for directing a fluent material into the discharge space to deflect the discharge out of its normal path; subclass 22 for consumable electrode discharge devices which have means to feed a fluent material (which may be solid particles) to the discharge space; and subclasses 26+ for consumable electrode discharge devices which are provided with a ventilator or fume director, see especially indented subclass 28.
315, Electric Lamp and Discharge Devices: Systems,
111.01+, for discharge device load with fluent material supply to the discharge space.
335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,
210, for ion or electron beam deflecting magnets, per se, and the search notes thereto for combinations including such magnet means.
376, Induced Nuclear Reactions: Processes, Systems, and Elements,
100+, for processes or devices for directing or injecting electrically charged or accelerated particles into a plasma body wherein the intent is to obtain a nuclear fusion reaction.
