Tip vessel for use in connection with a dosage pipette

Details Tip vessel for use in connection with a dosage pipette Tip vessel for use in connection with a dosage pipette

1979-04-20

1980-12-02

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

734254P, 734256, 422 99, B01L 302, G01N 110, G01N 114

Patent

active

042370957

ABSTRACT:
A disposable pipette tip vessel intended for use in connection with a dosage pipette. The lowest point of the tip vessel has a hole for suction of the liquid to be pipetted into the tip vessel and, correspondingly, for emptying of the tip vessel of the liquid contained therein. In the bottom part of the tip vessel around the filling and emptying hole, a plane or gently conical bottom portion has been shaped so that the tip vessel is arranged so that, between subsequent dosage steps to be performed by means of the pipette, the tip vessel allows the air column to be sucked into the bottom part of the tip vessel to rise as an air bubble or as bubbles of air above the liquid in the tip vessel, whereby the liquid column is correspondingly lowered to the bottom of the tip vessel.

REFERENCES:
patent: 2170173 (1939-08-01), Wheatley
patent: 3855868 (1974-12-01), Sudvaniemi

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