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Liquid handling device with surface features at a seal

  • US 20060008370A1
  • Filed: 07/09/2004
  • Published: 01/12/2006
  • Est. Priority Date: 07/09/2004
  • Status: Active Grant
First Claim
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1. A liquid handling device comprising:

  • a body with at least one channel, the channel having an end for receiving and expelling fluid;

    a plunger constructed and arranged for axial movement within the channel;

    a contact surface including a surface feature that forms a non-smooth surface; and

    a seal provided in the channel that sealingly engages a portion of the plunger with a portion of the body, at least a portion of the contact surface including the surface feature being located at the seal;

    wherein movement of the plunger in the channel causes movement of the body relative to the plunger at the seal and causes fluid flow at the end of the channel.

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