Detonating cord transport system

Abstract

A detonating cord transport package wherein detonating cord is installed on a plurality of separator-support members so as to provide crossover locations at frequent intervals at which crossover locations there is incorporated means for stopping any detonation that occurs, with the result that such detonation will be confined to a relatively short length of detonating cord and will also be confined to the container in which the detonating cord transport package is disposed.

I claim: 
     
       1. A detonating cord transport package comprising a plurality of sections, with each section comprising: a. a detonating cord separator-support member having front and back face surfaces and edge surfaces;   b. a continuous length of detonating cord disposed for support on said separator-support member and traversing portions of said surfaces such that there are a plurality of crossover locations on said front face surface where a second detonating cord portion crosses over a first detonating cord portion;   c. severing means interposed between said first and second detonating cord portions at each of said crossover locations; and,   d. retainer means maintaining said severing means in abutting relation with respect to said detonating cord first and second portions and restraining said detonating cord first and second portions against movement away from said front face surface.   
     
     
       2. The device as in claim 1 wherein said severing means is a thermoplastic material. 
     
     
       3. The device as in claim 2 wherein said thermoplastic material is Nylon. 
     
     
       4. The device as in claim 2 wherein said severing means is in the form of cord wrapped onto one of said detonating cord portions with contiguous turns extending beyond the sides of the other of said detonating cord portions. 
     
     
       5. The device as in claim 3 wherein said severing means is in the form of cord wrapped onto one of said detonating cord portions with contiguous turns extending beyond the sides of the other of said detonating cord portions. 
     
     
       6. The device as in claim 2 wherein said severing means is in the form of contiguous ribs at least partially encompassing one of said detonating cord portions and extending beyond the sides of the other of said detonating cord portions. 
     
     
       7. The device as in claim 3 wherein said severing means is in the form of contiguous ribs at least partially encompassing one of said detonating cord portions and extending beyond the sides of the other of said detonating cord portions. 
     
     
       8. The device as in claim 4 wherein said one detonating cord portion is reinforced by thermoplastic reinforcing material prior to being wrapped with said severing means cord. 
     
     
       9. The device of claim 8 wherein said thermoplastic reinforcing material is in the form of one or more layers of spirally wrapped tape. 
     
     
       10. The device of claim 8 wherein said thermoplastic reinforcing material is Teflon. 
     
     
       11. The device of claim 9 wherein said reinforcing material is Teflon. 
     
     
       12. The device as in claim 4 wherein said detonating cord portions are reinforced by thermoplastic reinforcing material. 
     
     
       13. The device of claim 12 wherein said thermoplastic reinforcing material is in the form of one or more layers of spirally wrapped tape. 
     
     
       14. The device of claim 12 wherein said thermoplastic reinforcing material is Teflon. 
     
     
       15. The device of claim 13 wherein said reinforcing material is Teflon. 
     
     
       16. The device of claim 6 wherein said one detonating cord portion is reinforced by thermoplastic reinforcing material prior to being at least partially encompassed by said severing means contiguous ribs. 
     
     
       17. The device of claim 16 wherein said thermoplastic reinforcing material is in the form of one or more layers of spirally wrapped tape. 
     
     
       18. The device of claim 16 wherein said thermoplastic reinforcing material is Teflon. 
     
     
       19. The device of claim 17 wherein said thermoplastic reinforcing material is Teflon. 
     
     
       20. The device of claim 6 wherein said detonating cord portions are reinforced by thermoplastic reinforcing material. 
     
     
       21. The device of claim 20 wherein said thermoplastic reinforcing material is in the form of one or more layers of spirally wrapped tape. 
     
     
       22. The device of claim 20 wherein said thermoplastic reinforcing material is Teflon. 
     
     
       23. The device of claim 21 wherein said thermoplastic reinforcing material is Teflon. 
     
     
       24. The device as in any one of claims 4, 5, 8-15 wherein said severing means cord is wrapped onto said first detonating cord portion. 
     
     
       25. The device as in any one of claims 4, 5, 8-15 wherein said severing means cord is wrapped onto said second detonating cord portion. 
     
     
       26. The device as in any one of claims 6, 7, 16-19 wherein said severing means contiguous ribs at least partially encompass said first detonating cord portion. 
     
     
       27. The device as in any one of claims 6, 7, 16-19 wherein said severing means contiguous ribs at least partially encompass said second detonating cord portion. .Iadd.28. A detonating cord transport package comprising a plurality of sections, with each section comprising: a detonating cord separator-support member having front and back face surfaces and edge surfaces,   a continuous length of detonating cord disposed for support on said separator-support member and traversing portions of said surfaces such that there are a plurality of locations on said front face surface where a second detonating cord portion is in close proximity to a first detonating cord portion, and   severing means interposed between said first and second detonating cord portions at each of said locations. .Iaddend. .Iadd.29. The device of claim 28, comprising:   means at each of said locations for maintaining said severing means in a given position with respect to said detonating cord first and second portions and for restraining said detonating cord first and second portions against movement away from said severing means. .Iaddend. .Iadd.30. The device of claim 28, wherein:   said first and second detonating cord portions at each of said locations have ends which are connected together by a loop portion of said detonating cord. .Iaddend. .Iadd.31. The device of claim 29, wherein:   said first and second detonating cord portions at each of said locations have ends which are connected together by a loop portion of said detonating cord. .Iaddend. .Iadd.32. A detonating cord transport package comprising:   a plurality of separator-support members located in layers,   a continuous length of detonating cord disposed for support on said separator-support members,   each of said support members having at least on one side thereof a portion of said detonating cord which traverses said side such that there are a plurality of locations on said side where a second detonating cord portion is in close proximity to a first detonating cord portion, and   severing means interposed between said first and second detonating cord portions at each of said locations. .Iaddend. .Iadd.33. The device of claim 32, comprising:   means at each of said locations for maintaining said severing means in a given position with respect to said detonating cord first and second portions and for restraining said detonating cord first and second portions against movement away from said severing means. .Iaddend. .Iadd.34. The device of claim 32, wherein:   said first and second detonating cord portions at each of said locations on each of said support members have ends which are connected together by a   
     
     
        loop portion of said detonating cord. .Iaddend. .Iadd.35.  The device of claim 33, wherein: said first and second detonating cord portions at each of said locations on each of said support members have ends which are connected together by a loop portion of said detonating cord. .Iaddend. .Iadd.36. A detonating cord transport package, comprising:   a plurality of support members located in layers,   each of said support members having at least one support side with all of said one support sides of said support members facing in the same direction,   a continuous length of detonating cord disposed for support on said support members,   said detonating cord being formed in a plurality of loops on each of said support members whereby each of said support members supports a plurality of said loops of detonating cord,   each of said loops of detonating cord having two end portions in close proximity to each other at a given location on said one support side of its supporting support member,   said given locations on said one support side of each of said support members being spaced from each other, and   severing means interposed between said two end portions of each of said loops of said detonating cord on said support side of each of said support members. .Iaddend. .Iadd.37. The device of claim 36, comprising:   means at each of said locations for maintaining said severing means in a given position with respect to said two end portions thereat and for restraining said two end portions against movement away from said severing means. .Iaddend.