US PATENT SUBCLASS 445 / 18
.~.~ Including establishing an electric space discharge

Current as of: June, 1999
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445 /   HD   ELECTRIC LAMP OR SPACE DISCHARGE COMPONENT OR DEVICE MANUFACTURING

1  DF  PROCESS {13}
9  DF  .~ Generating gas or vapor within an envelope, or coating by vapor, gas, mist or smoke within the envelope {12}
18.~.~ Including establishing an electric space discharge

DEFINITION

Classification: 445/18

Including establishing an electric space discharge:

(under subclass 9) Method which includes setting up or producing an electric arc or current flow between electrodes of the lamp or discharge device.

(1) Note. The discharge may be established between the discharge electrodes where the device being treated is a discharge device, or between any members of the device

between which a discharge can be established.

(2) Note. The discharge may be established for the purpose of heating or treating the gas or vapor generating material, or may be established for other purposes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72, for apparatus under the class definition including means to establish an electric space discharge.

SEE OR SEARCH CLASS

148, Metal Treatment, for processes of treating metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical properties of metal. If metal casting, fusion bonding, machining, or working is involved, there is a requirement of significant heat treatment as described in section III, A, of the Class 148 definition. Use of electrical heating does not negate Class 148 placement, if the other criteria for Class 148 are met. 204, Chemistry: Electrical and Wave Energy,

164+, for chemical preparation of a compound or element by using an electrostatic field or electrical discharge and subclasses 192.1+ for coating, forming, or etching by sputtering.

219, Electric Heating,

121.11+, for methods of metal heating by means of an electric discharge.

427, Coating Processes,

580, for coating methods, per se, utilizing direct application of an electric discharge.