Beacon activation device

Details Beacon activation device Beacon activation device

G - Physics

01

S

306/5, 343/88

G01S 1/04 (2006.01)

Patent

CA 1256916

6292-63 ABSTRACT An aircraft crash position indicator with an improved radio beacon activation device. An emergency transmitter deVice comprises a radio transmitter, a battery, and a deformable normally open switch connected electrically between the battery and an activation switch. The device is releasably mounted on an airframe, with the deformable normally open switch co-acting with an ejector device so that operation of the ejector device causes release of the emergency transmitter device from the airframe and at the same time permanently deforms the normally open switch into a closed position thereby to energize the transmitter from the battery. The normally open switch comprises a permanently deformable conductive outer tube within which a central conductor is co-axially disposed and electrically insulated therefrom. Deformation of the outer conductive tube establishes permanent electrical connection with the central conductor and closes the circuit between the transmitter and the battery.

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