Venting system for a shaped charge in the event of deflagration
AssigneeHunting Titan, Inc.
InventorsWilliam Richard Collins, Mark Allan Pederson, Ian Douglas Rudnik
Life of this patent
Estimating the term…
Abstract
A shape charge venting apparatus and method for venting gases generated during deflagration. The venting apparatus and method including vent grooves inside the shape charge providing a pathway for deflagration gases to escape the shape charge. The venting apparatus and method also may include using a retainer ring in addition to the vent groove in order to hold the components of the shape charge in place. The venting of the gases during deflagration facilitates pressure relief within the shape charge and increases safety from accidental detonation during a fire.
Claims35
A shape charge assembly comprising:
- a case with at least one cylindrical opening and an inner cavity defined by an inner wall having a cylindrical portion and a concave portion;
- a liner having a liner apex and a liner skirt located proximate to the inner wall;
- at least one longitudinal inner facing vent groove in the cylindrical portion only, of the inner wall;
- an explosive material in contact with the inner wall and in contact with the at least one vent groove;
- wherein the liner skirt is adjacent to the inner wall, and the explosive material is adjacent to the inner wall and the liner;
- and
- wherein the at least one vent groove vents gases along the inner wall, around the liner skirt, and towards the cylindrical opening.
A shape charge case comprising:
- at least one conical cross sectioned portion with a first opening and a second opening;
- at least one cylindrical cross sectioned portion having a third opening, a fourth opening, and an inner wall;
- and
- at least one longitudinal inner facing vent groove along a portion of the inner wall of the cylindrical cross sectioned portion only, wherein the vent groove vents gases within the shape charge case;
- and
- wherein the conical cross sectioned portion is adjacent to the cylindrical cross sectioned portion whereby the second opening and the third opening are adjacent and whereby the fourth opening is larger than the first opening.
A shape charge assembly comprising:
- a case with at least one opening, at least one inner diameter, and at least one longitudinal inner facing vent groove in a cylindrical cross-sectioned portion only of an inner wall of the case;
- an explosive material;
- a retainer ring with an outer diameter larger than the at least one inner diameter of the case;
- a liner with a liner skirt having an outer diameter larger than the at least one inner diameter of the case;
- wherein the movement of the liner and explosive material is restricted by the retainer ring's interference fit with the case;
- and
- wherein the liner skirt is adjacent to and in contact with the vent groove where at least a portion of the liner skirt does not contact inner wall, and the explosive material is adjacent to the inner wall and the liner.
A shape charge case comprising:
- at least one conical cross sectioned portion with an apex having a first opening;
- at least one cylindrical cross sectioned portion having an inner surface and a second opening larger than the first opening;
- and
- at least one longitudinal inner facing vent groove cut along a portion of the inner surface of the cylindrical cross sectioned portion only;
- and
- wherein the at least one conical cross section is located coaxial with and adjacent to the at least one cylindrical cross section portion, wherein the two portions are integral and form a shaped charge case with an apex end first opening and a second opening, opposite of the apex end first opening.
Dependencies are inferred from the claim text.