Importance

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Abstract

A multi-channel pipetter has a U-shaped housing with horizontal upper and lower arms and an interconnecting hand grip portion. A plurality of nozzles that serve to support replaceable tips are mounted on the lower arm in a vertical orientation and are connected by a flexible tubing that extends upwardly through the grip portion to a circular array of cylinders disposed horizontally in the upper arm. A piston-cylinder-volume setting mechanism is horizontally disposed in the upper arm. The mechanism is actuated by a trigger on the hand grip portion and the volume is controlled by a micrometer head which operates a stop within the upper arm. A tip ejector is mounted in the lower arm which provides substantial mechanical advantage for stripping the tips from the nozzles.

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First Claim