Method of and apparatus for dispensing liquid

Details Method of and apparatus for dispensing liquid Method of and apparatus for dispensing liquid

1985-01-17

1986-03-11

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Processes

Plural materials

141 98, 141 90, 7386424, 422100, B65B 304

Patent

active

045748500

ABSTRACT:
A liquid pipetting system for aspirating and dispensing small samples of fluid and diluents. The pipetting system consists of a coaxial needle serving as the pipette tip and a metering system to control the fluids. Precise dispensing of small amounts of liquid from the inner needle is made possible by surrounding the sample liquid with a miscible diluting liquid thereby establishing a controlled interface and conveying the sample liquid into the receiving chamber with that miscible diluting liquid.

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patent: 4318885 (1982-03-01), Suzuki et al.
patent: 4367043 (1983-01-01), Sweet et al.

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