Method of removing an article from a chamber having a reduced pr

Details Method of removing an article from a chamber having a reduced pr Method of removing an article from a chamber having a reduced pr

1975-08-11

1977-08-23

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264 90, 264101, 264178R, 264DIG13, 425 4C, 425 71, 425378R, 425DIG60, B29D 2700

Patent

active

040440842

ABSTRACT:
A method of removing an article from a chamber having a reduced pressure therein by connecting the chamber to a pool of liquid by a barometric leg is disclosed. The method provides a conveyor in said barometric leg and allows said article to float up into engagement with said conveyor so that the force exerted on the article by the conveyor moves the article down into the pool of liquid and out into the atmosphere.

REFERENCES:
patent: 1619768 (1927-03-01), Schubert
patent: 1990434 (1935-02-01), Kohler
patent: 3558753 (1971-01-01), Edlin
patent: 3586645 (1971-06-01), Granger et al.
patent: 3704083 (1972-11-01), Phipps
patent: 3764642 (1973-10-01), Boutillier
patent: 3822331 (1974-07-01), Cogliano

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