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Flight lock actuator with dual energy sources

  • US 7,303,167 B2
  • Filed: 01/20/2006
  • Issued: 12/04/2007
  • Est. Priority Date: 11/13/2001
  • Status: Expired due to Term
First Claim
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1. A method for providing improved reliability in an aircraft door flight lock actuator comprising:

  • storing energy in a mechanical energy storage means and an electrical energy storage means;

    powering the actuator using the energy stored in the mechanical energy storage means and the electrical energy storage means to complete an unlocking stroke in the absence of aircraft power wherein the door remains closed during unlocking; and

    controlling a linear velocity of the actuator.

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