Pipetting apparatus

Details Pipetting apparatus Pipetting apparatus

1997-04-07

1999-05-25

Pyon, Harold Y.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422101, 422103, 422104, 7386413, 7386432, B01L 302

Patent

active

059067950

ABSTRACT:
A chuck mechanism (2) for holding a pipette head (3) is attached to an output end of a reciprocating drive mechanism (1). A chuck control mechanism (5) for controlling the head holding and releasing operations of the chuck mechanism (2) is disposed at one side of each of head support members (41) of a head stowing device (4) for accommodating replaceable pipette heads (3). The chuck control mechanism (5) comprises a control piece (54) engageable with and disengageable from the chuck mechanism (2) for effecting the holding and releasing operations, and a plurality of magnets (81), (82), (8) for reciprocatingly driving the control piece (54) with the reciprocating movement of the chuck mechanism (2) when the pipette head (3) as held by the chuck mechanism (2) is thereby moved toward or away from the head support member (41). The pipetting apparatus is adapted to automatically and rapidly replace the pipette head by another.

REFERENCES:
patent: 4282745 (1981-08-01), Burr
patent: 4427483 (1984-01-01), Sachs et al.
patent: 5305650 (1994-04-01), Koike et al.
patent: 5620660 (1997-04-01), Belgardt et al.
patent: 5620661 (1997-04-01), Schurbrock
patent: 5672320 (1997-09-01), Ritter

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