Coulter Electronics, Inc.

Coulter Corporation

Bernard Parker

Hari Matsuda

Edward N Doty

Terry L Siorek

Rafael E Zorrilla

Warren C Winter

Ignacio B Garcia De Osuna

A multifunctional liquid sampling, metering and transfer valve assembly and the analytical system employing same. The valve assembly is capable of performing all liquid handling functions therewithin. The valve assembly comprises a pair of coaxially arranged valve discs engaged in frictional, sealed face to face disposition and includes plural axially parallel through passageways arranged for selective communication, one disc being rotatable relative to the other. Plural dedicated flow paths are defined by said passageways for metering, storing and delivering precise volume aliquots of sample, of diluent and of lysing reagent (in respect of blood cell study) from sources of said liquids to mixing and/or testing chambers. Vacuum is employed to move the liquids along the dedicated flow paths aiding in preventing leakage from the junctions of the passageways within the valve assembly along the engaged surfaces. Further, the valve assembly is provided with a gimballed mounting coupling the assembly to a stepper motor, said mounting preventing vertorial misalignment of the discs (and passageways) during operation of the valve assembly. programmable control is provided so as to operate the valve assembly in accordance with a preset operational pattern.

Sampling metering and transfer valve assembly and analyzing system

Automatic printing apparatus wherein a single turnaround item-document is utilized as an initial source of intelligible information-data and thereafter by comparing certain of the data on the document with additional data inputted thereto by means of operably associated external hardware and subsequently summarizing the total data on the item effective to provide a final document including both the initially inputted information-data as well as the data resulting from the comparison and summarization.

Automatic printing apparatus utilizing turnaround document

Growing community of inventors

Key Biscayne, FL, United States of America

Bernard Parker