Fluid closure for and method of preventing flow through an openi

Details Fluid closure for and method of preventing flow through an openi Fluid closure for and method of preventing flow through an openi

1978-12-04

1981-03-03

Rutledge, L. Dewayne

Metallurgical apparatus

Process

98115R, 266144, 266158, 75 60, C21C 542

Patent

active

042536448

ABSTRACT:
This invention relates to a fluid closure for preventing gaseous and particulate material from flowing through an opening in a fluid confining structure, and more particularly relates to a fluid curtain for sealing a lance port in a gas collecting hood for an oxygen steelmaking furnace.

REFERENCES:
patent: 2273903 (1942-02-01), Smalley et al.
patent: 3630719 (1971-12-01), Craig
patent: 3719136 (1973-03-01), Criddle
patent: 3843461 (1974-10-01), Allen
patent: 3863906 (1975-02-01), Vicard
patent: 3897721 (1975-08-01), Fuhst
patent: 3907264 (1975-09-01), Desaar
patent: 3930641 (1976-01-01), Overmyer et al.
patent: 4032110 (1977-06-01), Ziegler
patent: 4052005 (1977-10-01), Rymarchyk, Jr.

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