Isolation of forestream and midstream portions of collected urin

Fluent material handling – with receiver or receiver coacting mea – Processes – Battery grid pasting

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141 98, 141286, 141331, 141392, 4301, 7386341, 128761, 210531, 422102, B65B 304

Patent

active

044945817

ABSTRACT:
A forestream sample of a urine void is isolated from a subsequently collected midstream specimen by means of a valve controlled by material which swells to many times its original volume when exposed to urine. The material is disposed in a forestream receiving chamber having a normally open inlet aperture toward which void urine is directed by a funnel, or the like. Upon contact between the liquid and the material in the chamber, the material absorbs the liquid and swells to many times its original volume while forcefully urging a movable member against the aperture to block further entry of liquid into the chamber. Subsequently received liquid is redirected into a midstream specimen collection container. The void stream is initially received by a funnel having a discharge spout which terminates below the level of an overflow opening from which the subsequently received void portion is redirected into the midstream specimen container.

REFERENCES:
patent: 3583388 (1971-06-01), Hovick
patent: 3635091 (1972-01-01), Linzer et al.
patent: 3722503 (1973-03-01), Hovick
patent: 3750647 (1973-08-01), Gleason et al.
patent: 3830107 (1974-08-01), Linzer
patent: 3943770 (1976-03-01), McDonald
patent: 3982898 (1976-09-01), McDonald
patent: 4040791 (1977-08-01), Kuntz
patent: 4094020 (1978-06-01), Franklin
patent: 4252132 (1981-02-01), Kuntz
patent: 4276889 (1981-07-01), Kuntz et al.
patent: 4331162 (1982-05-01), Kuntz et al.

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