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US 2003/0227104 A1Published application
Core for winding material and method for manufacturing the same
OwnerMark J. Majeskiinventor
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OwnerMark J. Majeskiinventor
Estimating the term…
A core for winding a continuous web of material. In one embodiment of the present invention, the core includes a first inner portion and a second outer portion. The inner and outer portions once had the same inner diameters. However, the outer portion is resized to having a second inner diameter so that it may overlap the first inner portion. A workpiece, which will be cut into a plurality of second outer portions, is heated. The heated workpiece is then placed over a plug which has an outer diameter that substantially corresponds to the desired inner diameter for the second outer portions. By placing the heated workpiece over the plug, the workpiece is stretched to have the desired second inner diameter. The workpiece is then cut into a plurality of second outer portions of the desired width. Because the inner diameter of each second portion is now larger, they are permitted to overlap a corresponding first inner portion.
A core for winding of material, said core having been reconfigured from once having a first inner diameter into having a second inner diameter by heating the core when having said first diameter and then stretching said core to then have said second inner diameter, wherein said second inner diameter is larger than said first diameter and said core may be utilized for winding of material.
A core for winding and unwinding of material, said core comprising a first inner portion and an second outer portion, said second outer portion overlapping the exterior of said first inner portion to define said core, both said first inner portion and said second outer portion having a first inner diameter, said second outer portion having been reconfigured from having had said first inner diameter into having a second inner diameter by heating said second outer portion when having said first diameter and then stretching said second outer portion to have said second inner diameter, wherein said second inner diameter is larger than said first diameter and wherein said second outer portion is permit to overlap said first inner portion.
A method for manufacturing a core for winding a continuous web of material, said method comprising the steps of:
A method for manufacturing a core for winding a continuous web of material, said method comprising the steps of:
A core for winding of material, comprising an outer portion having been resized from having had a first inner diameter to have a second inner diameter, and an inner ring formed from an elongated portion of material rolled into a ring and configured to be received and retained within the outer portion.
Dependencies are inferred from the claim text.