Stock material or miscellaneous articles – Structurally defined web or sheet – Longitudinal or transverse tubular cavity or cell
Patent
1997-01-22
1999-11-23
Nold, Charles
Stock material or miscellaneous articles
Structurally defined web or sheet
Longitudinal or transverse tubular cavity or cell
428 341, 428114, 428 83, 428120, 428122, 428128, B65D 8500
Patent
active
059896841
ABSTRACT:
A slitting and scoring machine includes an upper tooling roller and a lower tooling roller that cooperate to define a tooling nip. Each tooling roller includes an alternating series of coaxially arranged annular knives, annular dies, and annular mandrels. A web of insulation is drawn through the tooling nip to simultaneously (i) cut the web into strips, (ii) score the strips in a manner that promotes the forming of the strips, and (iii) partially form the strips into modified U-shapes. Each strip includes a longitudinally extending middle segment and a pair of longitudinally extending side segments that extend away from the middle segment in a divergent manner to define a longitudinally extending channel. Longitudinally extending grooves are formed by the scoring at the junctures of the middle segment and the side segments. The scoring/grooves promote the divergent shape of the strip. In an end profile view of the strip, the middle segment and each of the side segments are generally straight, and an obtuse angle is defined between each side segment and the middle segment. Each strip is formed into a roll, so that a first length of the strip and a second length of the strip each extend around a common point. At least a portion of the second length is disposed within the channel of the first length.
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"Wedge Training Manual," published by Electrical Insulation Suppliers, Inc. in 1994.
Paperwork describing Slitting Methods and Machines, believed to be published prior to Jan. 1, 1996.
"Fabrico Catalog" published approximately Feb. 1, 1994.
Hazelton Thomas James
Jeffries Mark A.
EIS, Inc.
Nold Charles
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