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Torque override knob for endoscopes, borescopes, or guide tubes

  • US 5,496,260 A
  • Filed: 05/16/1994
  • Issued: 03/05/1996
  • Est. Priority Date: 05/16/1994
  • Status: Expired due to Fees
First Claim
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1. A hand-rotated knob drive for rotating a shaft-driven device comprising:

  • a hand-rotatable knob;

    a drive stem on which said knob is mounted; and

    torque override means coupling said knob and said drive stem for;

    (i) engaging the knob and the stem to enable said knob and stem to rotate as a unit until a predetermined torque is exceeded;

    (ii) disengaging the knob from the stem to enable the knob to slip with respect to the stem after said predetermined torque has been exceeded; and

    (iii) re-engaging the knob to the stem after the knob and stem have been disengaged when a predetermined rotational alignment has been established therebetween.

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