Sensor syringe

Details Sensor syringe Sensor syringe

1981-03-26

1983-10-18

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Evacuation apparatus

141 94, 141284, 73293, 250227, 340619, 350 962, B65B 304

Patent

active

044100205

ABSTRACT:
A sensor syringe or hollow needle arrangement for the automatic withdrawal of a liquid sample from a liquid contained within a vessel. A duct is enclosed in a sheath or jacket-like manner by a light conductor possessing an inlet for an optical source and an outlet leading to an optical detector. During sample withdrawal there is utilized the change in the reflection behavior of the lower end of the light conductor upon its immersion in the liquid in order to control sample withdrawal.

REFERENCES:
patent: 3434513 (1969-03-01), O'Bannon
patent: 3843326 (1974-10-01), Lichtenstenen
patent: 4038650 (1977-07-01), Evans et al.
patent: 4053002 (1977-10-01), Ludlow

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