Baker Instruments Corp.

Buchler Instruments, Div. of Searle Analytic, Inc.

Buchler Instruments, Division of Searle Diagnostics Inc.

Bernard Parker

Otto Gross

Joseph Buchler

Brian Parsonnet

Pipettor

Pipettor apparatus for dispensing accurate and precise amounts of liquid employs a first pump having a delivery capacity sufficient to handle substantially all of the liquid to be dispersed and a second pump whose delivery capacity is adjustable and only a fraction of the capacity of the first pump.

Automatic pipettor employing an adjustable volume delivery pump

Pipettor apparatus for automatically and rapidly transferring accurate and precise multiple quantities of samples (e.g., blood serum) and reagent to the rotatable transfer disc of a centrifugal analyzer.

Automatic pipettor

A concentrating vortex shaker for the simultaneous shaking and concentration of a multiplicity of liquid samples comprises a heat-conductive block having a plurality of openings for receiving laboratory vessels containing sample liquids and removably mounted on a base provided with an adjustable eccentric drive for displacing the block in a gyrating motion. An airtight cover is removably mounted on the block and forms a chamber above the samples which can be controllably evacuated. The samples can be heated or cooled by a temperature-controlled liquid which is fed through a channel formed in the block or heated by an adjustable electrical heater provided in the block mounting or cooled by a cooling plate, upon which the block mounts.

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Westport, CT, United States of America

Bernard Parker