Performance of blasting caps
AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorsLaurence J. Bement, Morry L. Schimmel, Ronnie B. Perry
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Abstract
Common blasting caps are made from an aluminum shell in the form of a tube which is closed at both ends. One end, which is called the output end, terminates in a principal side or face, and contains a detonating agent which communicates with a means for igniting the detonating agent. The improvement of the present invention is a flat, steel foil bonded to the face in a position which is aligned perpendicularly to the longitudinal axis of the tube.
Claims3
In a blasting cap comprising an aluminum shell in the form of a tube, one end thereof being the output end terminating in a face, the output end containing a detonating agent therein which communicates with means for igniting the detonating agent, the improvement therein comprising a flat, steel foil having a thickness from about 0.001 to about 0.005 inches which is bonded to the face in a position which is aligned perpendicularly to the longitudinal axis of the tube.
Dependencies are inferred from the claim text.