A perforating device having a longitudinal axis comprising: a loading tube having an explosive charge; a first layer slidable, non fixedly, and removeably disposed over the loading tube; and at least one outer layer in fixed engagement over the first layer and wherein the outer layer is a solid stru
A perforating device having a longitudinal axis comprising: a loading tube having an explosive charge; a first layer slidable, non fixedly, and removeably disposed over the loading tube; and at least one outer layer in fixed engagement over the first layer and wherein the outer layer is a solid structure.
대표청구항▼
What is claimed is: 1. A perforating device having a longitudinal axis comprising: a. a loading tube having an explosive charge; b. a first layer slidable, non fixedly, and removeably disposed over the loading tube; and c. at least one outer layer in fixed engagement over the first layer and wherei
What is claimed is: 1. A perforating device having a longitudinal axis comprising: a. a loading tube having an explosive charge; b. a first layer slidable, non fixedly, and removeably disposed over the loading tube; and c. at least one outer layer in fixed engagement over the first layer and wherein said outer layer is a solid structure; and d. at least one third layer, wherein the third layer is disposed between the first layer and the outer layer, wherein the third layer is a perforated sheet comprising a plurality of holes, wherein the holes comprise a diameter between 0.020 inches and 1 inch, and comprise a density approximately 1 hole per inch to 700 holes per inch. 2. The device of claim 1, wherein the at least one outer layer comprises scallop openings disposed in the solid structure and said scallops are positioned in the solid structure in a defined pattern and wherein the orientation of the outer layer is parallel to the longitudinal axis of the perforating device. 3. The device of claim 2, wherein the defined pattern is a helical pattern or a linear pattern. 4. The device of claim 2, wherein the scallop openings are holes, and wherein at least 1 scallop per foot to 21 scallops per foot are disposed in the solid structure, and each hole has a diameter between 쩌 inch and 1.5 inches. 5. The device of claim 1, further comprising a binder or laminating agent disposed between the layers. 6. The device of claim 1, wherein the outer layer is welded to the first layer. 7. The device of claim 1, wherein at least a fourth layer is disposed between the third layer and the outer layer. 8. The device of claim 7, wherein the fourth layer is a solid material. 9. The device of claim 7, wherein an energy absorbing layer is disposed between two layers. 10. The device of claim 9, wherein the energy absorbing layer is a perforated sheet. 11. The device of claim of claim 10, wherein the perforated sheet comprises a member of the group: lead, magnesium, copper, steel, stainless steel, aluminum, and alloys thereof. 12. The device of claim 10, wherein die density per inch for the perforated sheet is between 1 hole per square inch and 700 holes per square inch wherein the diameter of the boles ranges between 0.020 inches and 1 inch. 13. The device of claim 9, wherein the energy absorbing sheet is a solid sheet comprising a member of the group lead, magnesium, copper, aluminum, and alloys thereof and a non-metallic substance. 14. The device of claim 13, wheein the nonmetallic substance is selected from the group consisting of paper, cardboard, pressure laminate composite, and combinations hereof. 15. The device of claim 7, wherein the first and outer layers comprise the same material. 16. The device of claim 1, wherein the first and outer layers comprise a metal with a tensile strength between 36 ksi and 400 ksi. 17. The device of claim 16, wherein the metal comprises a member of the group: a chrome alloy, a nickel alloy, a steel alloy, and combinations thereof. 18. A perforating device having a longitudinal axis comprising: a. a loading tube having an explosive charge; b. a first layer slidable, non fixedly, and removeably disposed over the loading tube; and c. at least one outer layer in fixed engagement over the first layer and wherein said outer layer is a solid structure; d. at least one third layer, wherein a third layer is disposed between the first layer and the outer layer; e. at least a fourth layer is disposed between the third layer and the outer layer; and f. a perforated sheet disposed between the first and second layers, wherein the density per inch for the perforated sheet is between 1 hole per square inch and 700 holes per square inch, wherein the diameter of the holes on the perforated sheet ranges between 0.020 inches and 1 inch. 19. The device of claim 18, wherein the at least one outer layer comprises scallop openings disposed in the solid structure and said scallops are positioned in the solid structure in a defined pattern, and wherein the orientation of the outer layer is parallel to the longitudinal axis of the device. 20. The device of claim 19, wherein the defined pattern is a helical pattern or a linear pattern. 21. The device of claim 19, wherein the defined pattern is a helical pattern or a linear pattern. 22. The device of claim 18, further comprising a binder or laminating agent disposed between the layers. 23. The device of claim 19, wherein the scallop openings are holes, and wherein at least 1 scallop per foot to 21 scallops per foot are disposed in the solid structure, and each hole has a diameter between 쩌 inch and 1.5 inches. 24. The device of claim of claim 18, wherein the perforated sheet comprises a member of the group: lead, magnesium, copper, steel, stainless steel, aluminum, and alloys thereof. 25. The device of claim 18, wherein the first and outer layers comprise a metal with a tensile strength between 36 ksi and 400 ksi. 26. The device of claim 25, wherein the metal comprises a member of the group: a chrome alloy, a nickel alloy, a steel alloy, and combinations thereof. 27. The device of claim 18, wherein the first and outer layers comprise the same material. 28. The device of claim 27, wherein the at least one outer layer comprises scallop openings disposed in the solid structure and said scallops are positioned in the solid structure in a defined pattern, and wherein the orientation of the outer layer is parallel to the longitudinal axis of the device. 29. The device of claim 28, wherein the defined pattern is a helical pattern or a linear pattern. 30. The device of claim 28, wherein the scallop openings are holes, and wherein at least 1 scallop per foot to 21 scallops per foot are disposed in the solid structure, and each hole has a diameter between inch and 15 inches. 31. The device of claim 27, further comprising a binder or laminating agent disposed between the layers. 32. The device of claim 27, wherein at least a third layer is disposed between inner metal layer and the outer metal layer. 33. The device of claim 32, wherein the third layer is a perforated sheet comprising a plurality of holes, wherein the boles comprise a diameter between 0.020 inches and 1 inch, and a density of approximately 1 hole per inch to 700 holes per inch. 34. The device of claim 32, wherein at least a fourth layer is disposed between the third layer and the outer layer. 35. The device of claim 27, wherein an energy absorbing layer is disposed between two layers. 36. The device of claim 35, wherein the energy absorbing layer is a perforated sheet. 37. The device of claim of claim 36, wherein the perforated sheet comprises a member of the group: lead, magnesium, copper, steel, stainless steel, aluminum, and alloys thereof. 38. The device of claim 36, wherein the density per inch for the perforated sheet is between 1 hole per square inch and 700 holes per square inch, wherein the diameter of the holes ranges between 0.020 inches and 1 inch. 39. The device of claim 27, wherein the inner metal layer and the outer metal layer comprise a metal with a tensile strength between 36 ksi and 400 ksi. 40. The device of claim 30, wherein the metal comprises a member of the group: a chrome alloy, a nickel alloy, a steel alloy, and combinations threat. 41. The device of claim 27, wherein the inner metal layer and the outer metal layer comprise the same material.
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