Heating – Having fluid curtain at chamber port or work path
Patent
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
Gerhardt Hans J.
Kramer Carl
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