Communications: electrical – Aircraft alarm or indicating systems
Reexamination Certificate
2007-07-12
2010-11-30
Previl, Daniel (Department: 2612)
Communications: electrical
Aircraft alarm or indicating systems
C340S989000, C340S426290, C340S439000
Reexamination Certificate
active
07843363
ABSTRACT:
The invention provides a sensor for determining when a latch for securing an engine cowl on an aircraft is secured by detecting the proximity of a latch hook and a latch pin. The sensor includes a resonant circuit configured and adapted to transmit a status signal when the latch is in a secured state. The sensor also includes a means for conveying status information of the latch to a location remote from the latch based on the status signal, the conveying means being operably connected to the resonant circuit. The invention also provides a method of determining when a latch is open or secured by detecting the proximity of a latch hook and a latch pin.
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International Search Report and Written Opinion for PCT/US2008/069787 dated Oct. 29, 2008.
Grichener Alexander
Lin Chuang-Chia
Edwards Angell Palmer & & Dodge LLP
Previl Daniel
Rosemount Aerospace Inc.
Wofsy Scott D.
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