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Liquid pipetting apparatus and micro array manufacturing apparatus

  • US 7,160,511 B2
  • Filed: 02/16/2001
  • Issued: 01/09/2007
  • Est. Priority Date: 02/18/2000
  • Status: Expired due to Fees
First Claim
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1. A liquid pipetting apparatus for dispensing a minute amount of liquid comprising:

  • at least one conduit member for holding the liquid therein and having a dispensing end;

    a driving means;

    an actuator associated with the at least one conduit member, anda controller configured to supply voltage to the driving means to move the at least one conduit member and dispense the liquid from a dispensing end thereof when the at least one conduit member is moved in a dispensing direction by voltage applied to the actuator, temporarily stopped, and then moved in a direction opposite the dispensing direction of the liquid by a decrease in the voltage applied to the actuator, wherein dispensing substantially occurs while concurrently moving the conduit member in the direction opposite the dispensing direction.

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