Pipetting device

Details Pipetting device Pipetting device

2005-06-28

2005-06-28

Williams, Hezron (Department: 2856)

Measuring and testing

Sampler, sample handling, etc.

Capture device

C073S864180, C422S925000

Reexamination Certificate

active

06910395

ABSTRACT:
A pipetting device for detachably mountable pipette tips, comprising a moving device, a piston movable by the moving device in a cylinder to displace a column of air, an attachment stem for mounting a pipette tip, with an aperture having a connection to the cylinder at the free end, two stops limiting the movement of the piston during the displacement of the column of air, one of which is dislocatable, a precise adjustment device for dislocating the dislocatable stop in parallel with the piston for a precise adjustment of the piston stroke, a coupling device which puts the precise adjustment device into function, when coupled, and puts it out of function, when uncoupled, a rough adjustment device for dislocating the dislocatable stop when the precise adjustment device is uncoupled, for a rough adjustment of the piston stroke, and a measuring and indicating device coupled to the dislocatable stop for measuring the position set for the dislocatable stop and indicating the proportioning volume that matches the piston stroke set.

REFERENCES:
patent: 3343539 (1967-09-01), Moorhouse
patent: 3827305 (1974-08-01), Gilson et al.
patent: 25 49 477 (1977-12-01), None
patent: 0 286 676 (1988-10-01), None

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