Claims
- 1. A dual pressure sensing safeing and arming mechanism comprising a housing, said housing containing therein a detonator, means for moving said detonator from an inoperable to an operable position, first means for preventing the movement of said detonator moving means, second means for preventing the movement of said detonator moving means, means operably connected to said first movement preventing means for releasing said first movement preventing means upon the application of a first predetermined pressure signal, means operably connected to said second movement preventing means for releasing said second movement preventing means upon the application and subsequent reduction of a second predetermined pressure signal and a firing mechanism in operative relationship with said detonator when said detonator is in the operable position whereby upon the application in a predetermined sequence of said first and second pressure signals, said first movement prevention means is released and said second movement prevention means is released thereby allowing said detonator to be moved to the operative position.
- 2. A dual pressure sensing safeing and arming mechanism as defined in claim 1 further comprising means operatively connected to said first movement prevention means for permanently preventing the movement of said means for moving said detonator under preselected conditions.
- 3. A dual pressure sensing safeing and arming mechanism as defined in claim 2 wherein said means for moving said detonator comprises an arming slider, said arming slider containing said detonator therein and being operably connected to said firing mechanism.
- 4. A dual pressure sensing safeing and arming mechanism as defined in claim 3 wherein said first movement prevention means comprises a ball operatively interconnected between said means for releasing said first movement prevention means and said arming slider.
- 5. A dual pressure sensing safeing and arming mechanism as defined in claim 4 wherein said second movement prevention means comprises a lock slider operatively connected between said means for releasing said second movement prevention means and said arming slider.
- 6. A dual pressure sensing safeing and arming mechanism as defined in claim 5 wherein said means for permanently preventing the movement of said slider comprises a plunger, said plunger being operatively connected between said ball, said lock slider and said arming slider.
- 7. A dual pressure sensing safeing and arming mechanism as defined in claim 6 wherein said arming slider comprises an elongated element having an extension thereon, said extension being in operative relationship with said means for releasing said first movement prevention means.
- 8. A dual pressure sensing safeing and arming mechanism as defined in claim 7 wherein said means for releasing said first movement prevention means comprises a piston and a spring, said spring being interposed between said extension on said arming slider and said piston and an indentation located within said piston for receiving said ball.
- 9. A dual pressure sensing safeing and arming mechanism as defined in claim 8 wherein said means for releasing said second movement prevention means comprises a piston having a knurled stem thereon and a spring surrounding said stem.
- 10. A dual pressure sensing safeing and arming mechanism as defined in claim 9 wherein said lock slider has a slot therein, said slot in operative alignment with said stem of said means for releasing said second movement prevention means.
- 11. A dual pressure sensing safeing and arming mechanism as defined in claim 10 wherein said firing mechanism comprises a firing pin in operative alignment with said detonator when said detonator is in the operable position, a lever pivotally mounted within said housing, said lever being operatively connected to said firing pin and a pair of inertial balls located on opposite sides of said lever, one of said balls being operatively connected to said arming slider for movement therewith.
STATEMENT OF GOVERNMENT INTEREST
The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment of any royalty thereon.
US Referenced Citations (4)