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AUTOMATICALLY DISENGAGEABLE MANUAL CONTROL

  • US 3,842,690 A
  • Filed: 05/10/1973
  • Issued: 10/22/1974
  • Est. Priority Date: 05/10/1973
  • Status: Expired due to Term
First Claim
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1. In a device for controlling a further member, wherein said device includes an external power supply for exercising said control and also includes back-up means for exercising said control, the addition of means of automatically engaging and disengaging said back-up means as a function of said external power supply to said device, said automatic means including:

  • means releasably coupling said back-up means to said further member, said coupling means including;

    linearly movable piston assembly, means for causing movement of a linkage means, said movement causing means being movable with said piston assembly, and linkage means including a gear and a cam member, said cam member being so positioned as to cause said engagement or disengagement as a function of the position of said gear.

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