Closure means

Details Closure means Closure means

1977-05-23

1978-04-11

Dost, Gerald A.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

266 99, C22B 110

Patent

active

040835383

ABSTRACT:
A pressure vessel base closure means including a pair of flat disc-like members spaced apart by a peripheral outer cylindrical member and an inner perforated cylindrical member, and there being provided between the two flat disc-like members a plurality of radially directed ribs to provide rigidity to the base closure means. The base closure means is particularly useful for a reactor in which a bed of fluidized solid is maintained by the passage of a gas into the reactor through the base via the chamber between the two flat disc-like members.

REFERENCES:
patent: 3277582 (1966-10-01), Munro et al.
patent: 3542523 (1970-11-01), Wall
patent: 3578798 (1971-05-01), Lapple et al.
patent: 3598374 (1971-08-01), Nauta
patent: 3796551 (1974-03-01), Pope

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