Liquid transfer module for a chemical analyzer

Details Liquid transfer module for a chemical analyzer Liquid transfer module for a chemical analyzer

1992-07-16

1994-08-02

Bhat, Nina

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Sample mechanical transport means in or for automated...

422100, 436 43, 7386424, 7386425, G01N 2100

Patent

active

053343492

ABSTRACT:
A liquid transfer module for a chemical analyzer is adequate to effect liquid transfers between multiple stations arranged in a common arc about a vertical axis on a supporting instrument framework. A rigid radial probe arm supporting a vertical pipette is fixed to a tubular shaft supported on the framework for both rotational and elevational motion relative to the vertical axis. It is surrounded by a powered pulley that imparts angular movement to the shaft. It is elevationally carried by a non-rotating bearing assembly arranged coaxially about the axis on a nut threadably engaged by a powered lead screw extending within the confines of the shaft. Both the elevational and angular positions of the shaft are electronically monitored.

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