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Tortionally Stiff, Thermally Isolating Shaft Coupling with Multiple Degrees of Freedom to Accommodate Misalignment

  • US 20090293654A1
  • Filed: 05/30/2008
  • Published: 12/03/2009
  • Est. Priority Date: 05/30/2008
  • Status: Active Grant
First Claim
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1. A drive arrangement for translating rotary movement from an actuator apparatus to a valve member, the drive arrangement comprising:

  • an input shaft having a first end portion;

    an output shaft having second end portion;

    a first yoke including an axially extending first tang torsionally secured to the first end portion;

    a second yoke including an axially extending second tang torsionally secured to the second end portion; and

    a coupling shaft including a first slot formed in a first end slidably receiving the first tang torsionally coupling the coupling shaft to the first yoke, the coupling shaft including a second slot formed in a second end slidably receiving the second tang torsionally coupling the coupling shaft to the second yoke.

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