Cleaning and liquid contact with solids – Apparatus – For work having hollows or passages
Patent
1991-10-22
1992-10-27
Coe, Philip R.
Cleaning and liquid contact with solids
Apparatus
For work having hollows or passages
15302, 134172, 134182, 134198, 239124, 239DIG19, B08B 302, B08B 908
Patent
active
051581019
ABSTRACT:
A nozzle device for supplying washing liquid to a reaction vessel holding a carrier therein and for discharging a liquid from the reaction vessel. The nozzle device comprises a cylindrical outer tube having a lower end in a shape of a cone without a vertex and having an axial through-hole in opposition to the reaction vessel and an upper end communicating with a suction device for discharging the liquid. The nozzle device further comprising a cylindrical inner tube inserted loosely in the outer tube, reaching the through-hole of the outer tube, fitting tightly, practically without a gap therebetween, to the axial through-hole at the lower end, and communicating with a washing liquid-supplying device at the upper end thereof to form by itself a supply path for the washing liquid. The nozzle device also includes a liquid discharge path formed between the outside wall of the inner tube and the inside wall of the outer tube. The cone-shaped portion of the outer tube having one or more slits for introducing the liquid from the reaction vessel to the liquid-discharge paths and at least a part of the cone-shaped portion of the outer tube being made of or coated with a fluoro resin.
REFERENCES:
patent: 2783765 (1957-03-01), Hagedorn
patent: 4341568 (1982-07-01), Christensen
patent: 4685480 (1987-08-01), Eck
patent: 4754771 (1988-07-01), Tangherlini et al.
Coe Philip R.
Tosoh Corporation
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