US PATENT SUBCLASS 445 / 42
.~.~.~ With subsequent evacuation

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

1  DF  PROCESS {13}
23  DF  .~ With assembly or disassembly {8}
38  DF  .~.~ Including evacuating, degasifying or gas, vapor, liquid or meltable or sublimable solid introduction {5}
42.~.~.~ With subsequent evacuation

DEFINITION

Classification: 445/42

With subsequent evacuation:

(under subclass 38) Method which includes a following step of establishing a partial vacuum by physically removing a portion or all of the gaseous materials or aerosols from within the enclosure of the lamp or device.

(1) Note. The gas or vapor need not be completely evacuated from the envelope of the lamp or discharge device, but the evacuation may be stopped when the desired pressure in the envelope is obtained.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56, for similar subject matter which does not include any assembly or disassembly operations.

SEE OR SEARCH CLASS

53, Package Making,

403+, for methods of gas filling and/or evacuating of receptacles combined with closing, and see (3) Note and the reference to Class 53 under "SEARCH CLASS" in the class definition of this class (445) for the line. 141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

4, 8 and 65+ for methods of and apparatus for gas filling and/or evacuating of receptacles.