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Flexible coupling

  • US 4,265,099 A
  • Filed: 03/02/1979
  • Issued: 05/05/1981
  • Est. Priority Date: 03/02/1979
  • Status: Expired due to Term
First Claim
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1. An improved drive shaft including a driving member and driven member, an improved flexible coupling for transmitting torque from the driving member to the driven member comprising:

  • a first diaphragm member which is connected to the driving member;

    a second diaphragm member which is connected to the driven member; and

    an annular flexible coupling member disposed axially between the diaphragm members, said coupling member including first and second radially extending discs, the first disc being connected to the first diaphragm member and the second disc being connected to the second diaphragm member, wherein the improvement comprises means for increasing the axial stiffness of the flexible coupling while maintaining alignment offset capability,wherein the means is comprised of a tie-bolt extending through the radial center of each of the diaphragm members, said tie-bolt including a pair of bosses thereon to prevent the radial centers of the diaphragm members from axially converging and means for securing each axial end thereof to the diaphragm members in order to prevent the radial centers of the diaphragm members from axially diverging.

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