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US 4,788,913 AGranted
Flying-plate detonator using a high-density high explosive
AssigneeThe United States of America as represented by the United States Department of Energy
InventorsJohn R. Stroud, Donald L. Ornellas
Life of this patent
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Abstract
A flying-plate detonator containing a high-density high explosive such as benzotrifuroxan (BTF). The detonator involves the electrical explosion of a thin metal foil which punches out a flyer from a layer overlying the foil, and the flyer striking a high-density explosive pellet of BTF, which is more thermally stable than the conventional detonator using pentaerythritol tetranitrate (PETN).
Claims13
A flying-plate detonator comprising:
- a backing member, electrode means operatively positioned on opposite sides of an insulator means, said electrode means on one side of said insulator means being adjacent said backing member, means for directing electrical current through said electrode means, conductive film means mounted against and electrically connected to said electrode means, a flyer film means operatively positioned against said conductive film means, standoff means having a bore therein mounted at one end thereof against said flyer film means, and a high-density high explosive material positioned adjacent said standoff means at the opposite end thereof, whereby a large current pulse through said electrode means explosively vaporizes at least a portion of said conductive film means driving a flyer member from said flyer film means and through said bore of said standoff means striking said explosive material causing detonation thereof.
A flying-plate detonator utilizing a flying member for detonating an explosive comprising:
- a backing member, a pair of electrode means operatively positioned on opposite sides of an insulator means, said backing member being positioned against at least one of said pair of electrode means, means for electrically interconnecting and directing electrical current through said electrode means, flyer film means mounted against the other of said pair of electrode means, standoff means having a bore extending therethrough and mounted at one end thereof against said flyer film means, said bore being of a cross-section less than said flyer film means, said flyer film means being constructed such that a flyer member is cut out therefrom, and explosive material positioned adjacent said standoff means at the opposite end thereof, whereby a current pulse through said electrode means explosively vaporizes at least a portion of said other of said pair of electrode means cutting out said flyer member from said flyer means and driving said flyer member through said bore of said standoff means striking said explosive material causing detonation thereof.
Dependencies are inferred from the claim text.