Metal working – Method of mechanical manufacture – Repairing
Patent
1997-04-21
2000-08-15
Gorski, Joseph M.
Metal working
Method of mechanical manufacture
Repairing
2940203, 29722, 425192S, 4253822, B23P 600
Patent
active
061016985
ABSTRACT:
This invention relates to an arrangement for sealing a closed chamber in which equipment is to be replaced and especially to a chamber in which equipment is to be replaced while the chamber is to be maintained closed. The arrangement includes a channel filled with a fluid, such as water, and a skirt arranged to extend into the fluid to form the seal. As the skirt extends down into the liquid, a portal space is formed at the opening in the chamber and the opening preferably includes a gate for closing the chamber from the portal space and the outside.
REFERENCES:
patent: 2841821 (1958-07-01), Phipps
patent: 3757404 (1973-09-01), Bill
patent: 5618566 (1997-04-01), Allen et al.
patent: 5689876 (1997-11-01), Suzuki et al.
patent: 5728219 (1998-03-01), Allen et al.
patent: 5733586 (1998-03-01), Herwegh et al.
Estep Tom Edward
Hoffman Ronald P.
Hunter James R.
Muller Jean Joseph
Schilz Germain
E. I. Du Pont de Nemours and Company
Gorski Joseph M.
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