Trigger device for inflating flotation device

Details Trigger device for inflating flotation device Trigger device for inflating flotation device

B - Operations, Transporting

63

C

114/60.8

B63C 9/18 (2006.01) B63C 9/22 (2006.01) F17C 13/06 (2006.01)

Patent

CA 1084350

ABSTRACT OF THE DISCLOSURE A trigger device for use in the inflation of an inflat- able flotation rescue device such as a life jacket includes a casing containing a passage for receiving a compressed air container closed by a frangible diaphragm, and a pin for rupturing the diaphragm. The pin is moved against the diaphragm by a first lever, one end of which is connected to the pin and a spring bearing against the lever near the other end thereof. The first lever is held in a cocked position by a trip lever which engages such other end of the first lever and a water soluble stop which holds the trip lever and consequently the first lever in the cocked position. Upon immersion in water, the stop dissolves, tripping the lever system to cause the pin to rupture the diaphragm. The connection between the first lever and the pin is such that the pin describes a reciprocating movement, rupturing the diaphragm and then withdrawing from the opening. A third lever-permits manual operation of the trigger device. The third lever engages the one end of the first lever for moving such one end and the pin towards the diaphragm.

300513

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