Pipette provided with sampled volume adjusting means

Pipette provided with sampled volume adjusting means

  • CN 1,607,382 B
  • Filed: 04/09/2001
  • Issued: 03/27/2013
  • Est. Priority Date: 04/07/2000
  • Status: Active Grant
First Claim
Patent Images

1. the sample sipper tube of an adjustable volume comprises:

  • (a) has the sample sipper tube body of a longitudinal axis;

    (b) be located at an interior set screw of sample sipper tube body, described set screw can rotate to regulate the volume in the sample sipper tube;

    (c) adjusting knob;

    (d) be connected with described adjusting knob and longitudinally pass the bar of described set screw;

    Wherein said bar is connected to adjusting knob by a connector, and described connector can slide and be subjected to restrict along described bar and rotate with described bar;

    With(e) clutch coupling and driver;

    Wherein said adjusting knob can be movable between an actuated position and non-actuated position, at described actuated position, the tooth of described clutch coupling and the engagement of the tooth of described driver, the rotary action that is applied to adjusting knob is delivered on the described driver by the tooth of described clutch coupling and the tooth of described driver, then is sent to set screw;

    And in described non-actuated position, the tooth of described clutch coupling is not combined with the tooth of described driver, prevents that the rotary action that is applied to adjusting knob from rotating described set screw.

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