Purging process for multicomponent reactive liquid dispensing de

Details Purging process for multicomponent reactive liquid dispensing de Purging process for multicomponent reactive liquid dispensing de

1991-04-15

1992-09-22

Pal, Asok

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 2219, 134 42, 134 941, 134 951, B08B 302, B08B 502

Patent

active

051493802

ABSTRACT:
The mixing chamber, liquid reactant injection nozzle, and dispensing pathway of a multicomponent reactive liquid dispensing device are purged of unwanted residual reaction products, by performing at least two cycles of an operation in which a liquid solvent and pressurized gas are sequentially injected into the mixing chamber, followed by a stream of pressurized gas to dry the purged device.

REFERENCES:
patent: 4002271 (1977-01-01), Bulk
patent: 4119110 (1978-10-01), Stone
patent: 4285446 (1981-08-01), Rapp et al.
patent: 4426023 (1984-01-01), Sperry et al.
patent: 4471887 (1984-09-01), Decker
patent: 4523696 (1985-06-01), Commette et al.
patent: 4801335 (1989-01-01), Burkman et al.

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