Method of producing a high vacuum in a container

Details Method of producing a high vacuum in a container Method of producing a high vacuum in a container

1978-10-13

1980-01-01

Schmidt, Frederick R.

Fluent material handling, with receiver or receiver coacting mea

Processes

Gas or variation of gaseous condition in receiver

34 92, 118666, 118724, 141 65, 427248R, 432205, B65B 3100, C23C 1300

Patent

active

041811615

ABSTRACT:
A method of producing a high vacuum in a container which has limiting walls hich define a reaction chamber which is adapted to be evacuated for vacuum processing purposes, and in which gases are sorbed during vacuum operation and the gases are removed subsequently by increasing the temperature of the walls and evacuating the chamber at the same time includes heating the reaction chamber, sensing the underpressure in the reaction chamber and controlling the heating of the chamber in accordance with the sensed pressure in a manner such that the underpressure remains within a preselected upper and lower limit value until a predetermined temperature of the walls is attained.

REFERENCES:
patent: 2408614 (1946-10-01), Dimmick
patent: 3009828 (1961-11-01), Rogers
patent: 3181775 (1965-05-01), Herb

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