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US 4,046,055 AGranted
Apparatus for safely neutralizing explosive devices
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsRichard T. McDanolds, Rodney W. Jordan
Life of this patent
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Abstract
An unknown explosive device is safely neutralized, that is, rendered inoptive, without disturbing the device, by penetrating the device with an explosive-driven captive projectile from a safe distance and injecting liquid nitrogen into the device through the projectile to cool some internal parts below the temperature at which they are operative.
Claims7
An implement for use in neutralizing an explosive device from a safe distance, comprising:
- a gun body comprising a cylindrical bore and a contiguous cylindrical counterbore of reduced diameter;
- a captive piston comprising a cylindrical head slidable in said bore, a contiguous cylindrical stem or rod of reduced diameter slidable in said counterbore and a pointed end extending forwardly therefrom;
- said piston being formed with a first transverse opening near said pointed end, a second transverse opening, and a longitudinal bore connecting said openings;
- a charge chamber in said gun body adjacent to said cylindrical bore;
- an electrically initiated explosive charge in said chamber for propelling said piston forwardly, to penetrate the wall of the explosive device to be neutralized;
- a plenum chamber formed in said gun body surrounding an intermediate portion of said piston and in registration with said second transverse opening when said piston is in its forward position;
- and
- means for connecting said plenum chamber to a source of neutralizing fluid.
5 more elements
A system for neutralizing an explosive device comprising:
- an explosive device;
- an implement comprising:
- a gun body comprising a cylindrical bore and a contiguous cylindrical counterbore of reduced diameter;
- a captive piston comprising a cylindrical head slidable in said bore, a contiguous cylindrical stem or rod of reduced diameter slidable in said counterbore and a pointed end extending forwardly therefrom and positioned adjacent to said explosive device;
- said piston being formed with a first transverse opening near said pointed end, a second transverse opening, and a longitudinal bore connecting said openings;
- a charge chamber in said gun body adjacent to said cylindrical bore;
- an electrically initiated charge in said chamber for propelling said piston forwardly, to penetrate the wall of said explosive device;
- a plenum chamber formed in said gun body surrounding an intermediate opening when said piston is in its forward position;
- and
- means for connecting said plenum chamber to a source of neutralizing fluid;
- a container of neutralizing fluid;
- fluid conducting means connecting said container with said connecting means of said implement;
- and
- electrical means, located at a safe distance from said device and electrically connected with said explosive charge of said implement, for initiating said explosive charge to cause said piston to penetrate said explosive device.
11 more elements
Dependencies are inferred from the claim text.