Swept conical-like profile axisymmetric circular linear shaped charge

An axisymmetric circular linear 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 conical 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 an apex of said conical 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 and said liner producing an explosive hollow cylindrical jet stream 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 hollow cylindrical jet stream;
• 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;
• 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;
• and
• said shaped charge device producing an explosive hollow cylindrical jet upon detonation of said shaped charge device, said hollow cylindrical jet forming a hole in a target material that is wider than the outer diameter of the shaped charge device.

A method of producing an axisymmetric cylindrical jet stream from a circular linear 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 conical 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 an apex of said conical 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;
• 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 to produce said hollow cylindrical jet stream;
• 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 an explosive hollow cylindrical jet stream with the liner that is directed toward said front of said shaped charge device upon detonation of the shaped charge device.