Multi-chamber test tube

Details Multi-chamber test tube Multi-chamber test tube

1977-09-06

1979-04-17

Scovronek, Joseph

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

128 2F, 128 2G, 128297, 128350V, 128DIG5, 422103, 215 6, A61M 500

Patent

active

041500890

ABSTRACT:
A multi-chamber test tube which includes a first and a second matched separate elongate tubular member, means to connect the members together defining a test tube means having a dual mouth, and a stopper having a first leg and a second leg extending from the stopper body and receivable within the first and second elongate tubular member and wherein a pathway is provided from a central cavity in the body of the stopper through each of the legs and wherein a one-way valve is provided in each of the leg paths which is normally closed yet yieldable to permit flow through the leg paths in response to an elevated pressure in the cavity relative to the interior of the test tube.

REFERENCES:
patent: 2720307 (1955-10-01), Morgan
patent: 3405706 (1968-10-01), Cinqualbre
patent: 3446342 (1969-05-01), Michel
patent: 3494351 (1970-02-01), Horn
patent: 3604410 (1971-09-01), Whitacre
patent: 3848579 (1974-11-01), Willa-Real
patent: 3874367 (1975-04-01), Ayres

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