Multi-channel pipetter

Details Multi-channel pipetter Multi-channel pipetter

1986-10-21

1989-04-25

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

436809, 435293, 7386332, 7386413, 7386414, 7386417, 7386418, G01N 114

Patent

active

048246425

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.

REFERENCES:
patent: 3656351 (1972-04-01), Raczak
patent: 3754687 (1973-08-01), Norton
patent: 3827305 (1974-08-01), Gibson et al.
patent: 3975960 (1976-08-01), Croslin
patent: 4096751 (1978-06-01), Wilhers et al.
patent: 4237095 (1980-12-01), Suovaniemi et al.
patent: 4257268 (1981-03-01), Pepicelli et al.
patent: 4466298 (1984-08-01), Tervamaki et al.
patent: 4599220 (1986-07-01), Yonkers et al.

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