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Mechanical latch locking detection sensors

  • US 7,843,363 B2
  • Filed: 07/12/2007
  • Issued: 11/30/2010
  • Est. Priority Date: 07/12/2007
  • Status: Expired due to Fees
First Claim
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1. A sensor for determining when a latch for securing an engine cowl of an aircraft is secured, the sensor comprising:

  • a) a resonant circuit for transmitting a status signal when the latch is in a secured state, wherein the resonant circuit includes a capacitor having a first plate configured to be connected to a hook of the latch and a second plate configured to be connected to a pin of the latch, wherein the first and second plates are in closely aligned proximity when the latch is secured, and are out of closely aligned proximity when the latch is open; and

    b) means operatively connected to the resonant circuit for conveying status information of the latch to a location remote from the latch based on the status signal.

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