US PATENT SUBCLASS 445 / 38
.~.~ Including evacuating, degasifying or gas, vapor, liquid or meltable or sublimable solid introduction

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

Internet Version by PATENTEC © 1999      Terms of Use


445 /   HD   ELECTRIC LAMP OR SPACE DISCHARGE COMPONENT OR DEVICE MANUFACTURING

1  DF  PROCESS {13}
23  DF  .~ With assembly or disassembly {8}
38.~.~ Including evacuating, degasifying or gas, vapor, liquid or meltable or sublimable solid introduction {5}
39  DF  .~.~.~> With cooling, e.g., to condense
40  DF  .~.~.~> With heating, e.g., to outgas
41  DF  .~.~.~> By gettering
42  DF  .~.~.~> With subsequent evacuation
43  DF  .~.~.~> With particular sealing

DEFINITION

Classification: 445/38

Including evacuating, degasifying or gas, vapor, liquid or meltable or sublimable solid introduction:

(under subclass 23) Methods which includes (1) applying gaseous material, aerosol, or liquid within an enclosure of an electric lamp or electric space discharge device; (2) removing, absorbing or adsorbing gaseous material, occluded gaseous material, or aerosol from within an enclosure of the lamp or device, or (3) inserting into an enclosure a solid material intended to be vaporized or liquified.

(1) Note. Where the envelope is evacuated after a gas or vapor has been introduced into the envelope, the patent is classified in the indented subclasses.

(2) Note. Merely introducing solid material into the lamp or device enclosure is not, per se, an assembly operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+, for this subject matter where the evacuating operation

includes generating a gas or vapor within the envelope of the lamp or discharge device which acts as a getter.

53+, for methods of evacuating, degasifying or introducing getter or fluent material which methods do not include any assembly or disassembly operations.

70, for the corresponding apparatus. SEE OR SEARCH CLASS

423, Chemistry of Inorganic Compounds,

210+, for methods under the class definition for modifying or removing components of normally gaseous mixture.