Patent ID: 11918995
Assignee: FORMULATRIX INTERNATIONAL HOLDING LTD.
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B

Claim 0:
1. An apparatus for automatic liquid transfer optimization pipetting, comprising:
a pump;
a pipette tip in fluid communication with the pump, the pipette tip comprising a conduit with a working air pressure, wherein the working air pressure of the conduit is relative to ambient air pressure outside of the conduit, the working air pressure having an upper threshold and a lower threshold;
a pressure sensor connected to the conduit, the pressure sensor being adapted to measure the working air pressure, the ambient air pressure outside of the conduit, and changes to the working air pressure caused by aspiration or dispensation of a liquid by the pipette tip;
a controller in electrical communication with the pump and the pressure sensor, wherein the controller receives input from the pressure sensor, commands a velocity of the pump, and maintains the working air pressure at or below the upper threshold or at or above the lower threshold by adjustment of the velocity of the pump during aspiration or dispensation of a liquid by the pipette tip; and
a vertical linear actuator fixed to a frame and in electrical communication with the controller, wherein the vertical linear actuator is operatively connected to the pump and the pipette tip and operatively connected to an actuator motor that moves the apparatus vertically along an actuator lead screw.