Apparatus for contactless sealing of an opening against emerging

Details Apparatus for contactless sealing of an opening against emerging Apparatus for contactless sealing of an opening against emerging

1988-12-22

1990-01-16

Joyce, Harold

Heating

Having fluid curtain at chamber port or work path

34242, F27B 700

Patent

active

048940097

ABSTRACT:
An apparatus for contactless sealing of an opening against emerging or entering gas employs at least one barrier gas jet which is divided in the vicinity of its longitudinal axis. In the two sub-jets adjoining the dividing plane two different gases flow out, the concentration of the two gases changes abruptly at said dividing and separating plane so that a very reliable sealing is achieved.

REFERENCES:
patent: 3510113 (1970-05-01), Wise
patent: 3575398 (1971-04-01), Lincoln
patent: 4268977 (1981-05-01), Geiger
patent: 4622762 (1986-11-01), Reed

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