USA As Represented by Secretary of the Navy

William H Holt

Willis Mock, Jr

Alexander G Rozner

Bernard P Howder

Bradley L Hanna

An initiator is provided for a munitions device that is intended to strike a target substantially along a trajectory direction and contains an explosive within a case. The initiator includes a sleeve, first and second anvils and an initiation pellet disposed between the anvils. The sleeve is disposed within the case and adjacent to the explosive, and defines an initiator interior aligned substantially parallel to the trajectory direction. The sleeve includes one or more orifices that extend therethrough between the explosive and the interior, the orifices being disposed adjacent to the pellet. The pellet is composed of a reactive material that chemically responds as a non-explosive to kinetic and thermal stimuli. The first anvil is disposed transverse to the interior and forward of the pellet, while the second anvil is disposed within the interior behind of the pellet, wherein the second anvil translates towards the first anvil substantially along the trajectory direction in response to the device striking the target. The pellet discharges particles through the orifices, the particles being directed into the explosive in response to the second anvil translating towards the first anvil. The sleeve can be disposed within the explosive. The reactive material can be a solid or powdered mixture of powdered aluminum and polytetrafluoroethylene or other fluoropolymer, or alternatively a thermite mixture of powdered metal and metal oxide and may include added polytetrafluoroethylene or other fluoropolymer.

Reactive material initiator for explosive-filled munitions

A reactive munition uses a housing made from a housing in a state that is three-dimensionally rigid. The housing can be made of metal, such as aluminum. A reactive filler, such as powdered polytetrafluoroethylene (PTFE), fills the one or more cavities in the aluminum housing. A jacket encases the housing filled with the reactive filler.

Reactive munition in a three-dimensionally rigid state

System for clearing both light and heavy obstacles, in which one or more flying metal plates are propelled against heavy obstacles by explosive forces which also expand a folded continous rod member into a curvilinear, generally annular configuration that cuts through light obstacles such as concertina wire in the process of unfolding.

Clearing obstacles

Positron-emitting probes that have certain features that facilitate the use f positrons for nondestructive testing of fatigued metals. The features include the use of an unfatigued substrate for supporting the positron-emitting material, electric and/or magnetic fields to concentrate the positrons on the test item, and a thin scintillator window for use with those radioactive materials that emit a positron without emitting a time-correlated gamma photon. It should be understood that the foregoing abstract of the disclosure is for the purpose of providing a non-legal brief statement to serve as a searching-scanning tool for scientists, engineers and researchers and is not intended to limit the scope of the invention as disclosed herein nor is it intended that it should be used in interpreting or in any way limiting the scope of fair meaning of the appended claims.

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Fredericksburg, VA, United States of America

William H Holt