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US 9,175,940 B1Granted
Revolved arc profile axisymmetric explosively formed projectile shaped charge
AssigneeInnovation Defense, LLC
InventorNicholas Collier
Life of this patent
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Abstract
This novel axisymmetric revolved arc explosively formed projectile (REFP) shaped charge design will produce a projectile that is greater than ⅔ the diameter of the device forms a hole larger than the device diameter and removes all of the target material within the hole diameter. The precision of the circular simultaneous initiation of the HE billet is accomplished by the use of a novel Circular Precision Initiation Coupler (CPIC). This CPIC uses a single point initiation to create a simultaneous peripheral detonation of the HE billet that collapses and drives the revolved liner into a large diameter double wall hollow cylindrical explosively formed projectile.
Claims30
An explosively formed projectile shaped charge device, comprising:
- a liner configured in a partial toroid with a longitudinal axis intersecting an aperture located near the center of said partial toroid, said partial toroid being open-ended on a plane that intersects said longitudinal axis in a perpendicular manner toward a front end of the shaped charge device, said liner having a hollow arc cross-section extending toward a closed end of the partial toroid as defined by a longitudinal plane that is aligned on said longitudinal axis and a pole of said arc cross-section at a closed end of the partial toroid that extends toward a rear end of said shaped charge device, said liner having an outer surface and an inner surface, said inner surface exposed toward the open end of the front end of the shaped charge device, said liner having a smaller thickness proximate the open end of said partial toroid and a larger thickness proximate the pole at the closed end of said partial toroid, said liner producing a pole trailing explosive large diameter double wall hollow cylindrical explosively formed projectile directed toward said front of said shaped charge device upon detonation of the shaped charge device;
- a billet of high explosive material having a front end and a rear end located behind and proximate to the outer surface of said liner, said billet configured as a toroid with an internal aperture located proximate to the aperture of the liner, and said billet producing a high explosive detonation effect applied to said liner to produce said large diameter double wall hollow cylindrical explosively formed projectile;
- a coupler located in a rear portion of the shaped charge device, said coupler coupled to the rear end of the billet and said coupler producing a detonation wave initiating the high explosive detonation effect of the billet;
- and
- a body located around the outer surface of the billet and extending longitudinally the length of the billet, said body having a front end secured to said liner and, said body having a rear end secured to the coupler.
2 more elements
An explosively formed projectile shaped charge device, comprising:
- a liner configured in a partial toroid with a longitudinal axis intersecting an aperture located near the center of said partial toroid, said partial toroid being open-ended on a plane that intersects said longitudinal axis in a perpendicular manner toward a front end of the shaped charge device, said liner having a hollow arc cross-section extending toward a closed end of the partial toroid as defined by a longitudinal plane that is aligned on said longitudinal axis and a pole of said arc cross-section at a closed end of the partial toroid that extends toward a rear end of said shaped charge device, said liner having an outer surface and an inner surface, said inner surface exposed toward the open end of the front end of the shaped charge device, said liner having a larger thickness proximate the open end of said partial toroid and a smaller thickness proximate the pole at the closed end of said partial toroid, said liner producing a pole leading explosive large diameter double wall hollow cylindrical explosively formed projectile directed toward said front of said shaped charge device upon detonation of the shaped charge device;
- a billet of high explosive material having a front end and a rear end located behind and proximate to the outer surface of said liner, said billet configured as a toroid with an internal aperture located proximate to the aperture of the liner, and said billet producing a high explosive detonation effect applied to said liner to produce said large diameter double wall hollow cylindrical explosively formed projectile;
- a coupler located in a rear portion of the shaped charge device, said coupler coupled to the rear end of the billet and said coupler producing a detonation wave initiating the high explosive detonation effect of the billet;
- and
- a body located around the outer surface of the billet and extending longitudinally the length of the billet, said body having a front end secured to said liner and, said body having a rear end secured to the coupler.
2 more elements
A method of producing a double wall hollow cylindrical explosively formed projectile from a shaped charge device, comprising the steps of:
- providing a liner configured in a partial toroid with a longitudinal axis intersecting an aperture located near the center of said partial toroid, said partial toroid being open-ended on a plane that intersects said longitudinal axis in a perpendicular manner toward a front end of the shaped charge device, said liner having a hollow hemispherical cross-section extending toward a closed end of the partial toroid as defined by a longitudinal plane that is aligned on said longitudinal axis and a pole of said hemispherical cross-section at a closed end of the partial toroid that extends toward a rear end of said shaped charge device, said liner having an outer surface and an inner surface, said inner surface exposed toward the open end of the front end of the shaped charge device, said liner having a first thickness proximate the open end of said partial toroid and a second thickness proximate the pole at the closed end of said partial toroid;
- said liner producing a pole leading or trailing explosive large diameter double wall hollow cylindrical explosively formed projectile directed toward said front of said shaped charge device upon detonation of the shaped charge device;
- positioning a billet of high explosive material behind and proximate to the outer surface of said liner, said billet being proximate to the aperture of the liner, and said billet producing a high explosive detonation effect applied to said liner;
- positioning a coupler at a rear portion of the shaped charge device in contact with the rear of the billet, said coupler producing a detonation wave and initiating the high explosive detonation effect of the billet;
- surrounding the shaped charge device with a body around the outer diameter of the billet and extending longitudinally the length of the billet;
- and
- producing a large diameter double wall hollow cylindrical explosively formed projectile with the liner that is directed toward said front of said shaped charge device upon detonation of the shaped charge device.
4 more elements
Dependencies are inferred from the claim text.