The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 20, 1983

Filed:

Jun. 01, 1981
Applicant:
Inventor:

Robert E Gilson, Madison, WI (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06G / ; G06G / ;
U.S. Cl.
CPC ...
364496 ; 364479 ; 364502 ; 141130 ; 141284 ; 104246 ; 7386425 ;
Abstract

A liquid handling apparatus capable of being used as a fraction collector, sampler, dispenser, diluter or the like utilizes a microprocessor and three stepping motors to move a liquid handling tube suitable for dispensing, sampling or the like in two horizontal directions and in a vertical direction with respect to an array of test tubes or similar containers. The apparatus is capable of operating in several modes of dispensing and withdrawal operations, including modes based on the number of drops dispensed or the time spent over each container. The pattern of the movement of the liquid handling tube or dispensing head is selectable to suit the mode of operation of the liquid handling apparatus as well as the type of container and the number of containers being used at a particular time.


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