Thermally activated triggering device
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorClarence A. Merzals
Life of this patent
Estimating the term…
Abstract
The invention incorporates a thermally responsive rotor, with a primer athed, that revolves to an ignition position upon influence of a temperature rise. Thermally sensitive actuators, also incorporated in the invention, are designed to respond to the temperature rise according to the rate of temperature change. The actuators serve to cock a spring loadable slide. This slide has a firing member nose that is aligned with the primer when the primer and rotor are rotated to the ignition position. At full cocking of the slide, the actuators and slide become disengaged and the slide springs towards the primer. Impact of the slide's nose with the primer causes the primer to be initiated, resulting in a venting or a venting and ignition of an energetic material.
Claims8
A thermally activated triggering device having an impact reactive primer, the device comprising:
- a frame, said primer being mounted to said frame;
- firing member means mounted to said frame for transmitting force to said primer, said firing member means being moveable between a rest position and a firing position;
- resilient force transmission means engaging said firing member means and said frame for urging said firing member means towards said rest position;
- temperature sensitive actuator means engaging said firing member means and said frame, said temperature sensitive actuator means for moving said firing member means between said rest position and said firing position in response to temperature change;
- releasable interlock means releasably interlocking said firing member means with said temperature sensitive actuator means for releasing said firing member means from said temperature sensitive actuator means in response to said firing member means moving to said firing position;
- so that in response to positive temperature change said temperature sensitive actuator moves said firing member means towards said firing position thereby loading said resilient force transmission means and so that in response to said firing member means reaching said firing position said releasable interlock means releases said firing member means to thereby rapidly unload said resilient force transmission means to thrust said firing member means into forceable contact with said primer to release energy stored within said primer.
A thermally activated triggering device having a primer, the device comprising:
- a frame;
- temperature responsive means attached between said frame and said primer for rotating said primer between a non-ignition position and an ignition position;
- and
- primer initiating means attached to said frame for impacting said primer when said primer is in said ignition position.
A thermally activated triggering device having an impact reactive primer, the device comprising:
- a frame;
- a rotor mounted to said frame for rotation between a non-ignition position and an ignition position, said primer being attached to said rotor so that at least two sections of said primer are exposed;
- a temperature responsive biasing element being engaged with said frame and said rotor for biasing said rotor between said non-ignition position and said ignition position in response to temperature;
- a slide mounted to said frame for translational movement between a rest position and a firing position, said slide having a firing pin nose for transmitting force to said primer at one of said exposed sections, said one of said exposed sections of said primer being aligned with said nose of said slide when said rotor is in said ignition position;
- a compressible and expandable energy storage element engaging said slide and said frame for urging said slide towards said rest position;
- an expandable and contractible temperature sensitive actuator engaging said frame and engaging said slide, said temperature sensitive actuator for moving said slide between said rest position and said firing position in response to at most a preselected rate of temperature change;
- and
- a releasable interlock interlockably engaging said slide and said actuator, said interlock releasing said slide from said actuator in response to said slide moving to said firing position;
- so that in response to positive temperature change said rotor is rotated to said ignition position and said slide is urged by said actuator and in opposition to said compressible and expandable energy storage element towards said firing position where said interlock releases said slide from said actuator so that said firing pin nose of said slide forceably engages said one of said exposed sections of said primer to initiate said primer to direct energy within said primer through a second of said exposed sections of said primer and from said triggering device.
Dependencies are inferred from the claim text.