Detonating cord inventory control marking system
First Claim
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1. In a detonating cord reel having a drum wrapped with detonating cord, and end flanges, axially spaced on the drum for containing many layers of cord wrapped on the drum, improvement to such cord comprising:
- incremental numerical markings on the cord at predetermined locations along the cord, said numerical markings providing an accurate visual indication of the number of cord increments remaining on the drum, whereby the user of cord so marked, and so arranged on the drum, will know in advance of deploying each segments of detonating cord to be used on each particular job/use of the cord, whether the remaining cord wrapped on the drum will satisfy the job/use requirement.
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Abstract
A system for deploying detonating cord from a reel that allows the user to tell at a glance whether he has left on the reel sufficient cord to complete the task. Before wrapping the cord on the drum, the detonating cord is marked incrementally. Once wrapped the user will have a visual indication of the number of feet, yards, or meters left on the reel.
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Citations
2 Claims
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1. In a detonating cord reel having a drum wrapped with detonating cord, and end flanges, axially spaced on the drum for containing many layers of cord wrapped on the drum, improvement to such cord comprising:
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incremental numerical markings on the cord at predetermined locations along the cord, said numerical markings providing an accurate visual indication of the number of cord increments remaining on the drum, whereby the user of cord so marked, and so arranged on the drum, will know in advance of deploying each segments of detonating cord to be used on each particular job/use of the cord, whether the remaining cord wrapped on the drum will satisfy the job/use requirement.
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2. A method of deploying a desired segment of detonating cord from a reel of detonating cord, and comprising:
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providing numerical markings at equally spaced increments on the detonating cord, wrapping the cord around the reel drum such that at least the highest number is readily visible adjacent the free end of the cord, and inspecting that visible numerical marking at ascertain whether sufficient cord is available on that reel to complete an anticipated deployment.
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Specification
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Current AssigneeOʼbrien, John P., Oʼbrien, Timothy J.
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Original AssigneeOʼbrien, John P., Oʼbrien, Timothy J.
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InventorsOʼBrien, Timothy J., OʼBrien, John P.
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Application NumberUS10/810,783Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current102/275.8CPC Class CodesC06C 5/04 Detonating fusesF42D 1/04 Arrangements for ignition i...
