Backwash system for diluting apparatus

Details Backwash system for diluting apparatus Backwash system for diluting apparatus

1973-10-16

1976-08-24

Wolk, Morris O.

Chemistry: physical processes

Physical processes

Crystallization

23230R, 23253R, 73421R, 73421B, 324 71CP, G01N 3100, G01N 100, G01N 110

Patent

active

039764290

ABSTRACT:
A backwash system including a dispensing cylinder and valve arrangement for directing diluent as a backwash from a source to a sampling valve utilized to make dilutions thence to a sampler in the form of an aspirator tube. The sampling is performed by means of the aspirator tube introduced into a fluid for sampling and a vessel is provided for catching the backwash fluid and aspirating same to waste. The vessel and the tube are positioned relatively to enable the backwash to be caught in the vessel only when diluent is dispensed as backwash. The aspirator tube and collector vessel are returned to their normal relative condition either by movement of the tube relative to the collector vessel or vice versa. Suitable controls are provided to assure that backwash occurs only when the tube and vessel are conditioned to receive same.

REFERENCES:
patent: 2656508 (1953-10-01), Coulter
patent: 3549994 (1970-12-01), Rothermel et al.
patent: 3567390 (1971-03-01), Rothermel
patent: 3649204 (1972-03-01), Farr
patent: 3759667 (1973-09-01), Bannister et al.
patent: 3776700 (1973-12-01), Gallant

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