Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1981-02-19
1983-05-24
Thibodeau, Paul J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428156, 4285428, B32B 326, B32B 518
Patent
active
043850910
ABSTRACT:
A molded sheet of expandable polystyrene material has a generally rectangular shape and a plurality of spaced, parallel openings extending therethrough. The openings are arranged in spaced, parallel rows. In a preferred embodiment, a plurality of cavities are molded into the surface of the sheet to minimize deformation during molding as the sheet cures. A stack of such sheets is placed in a single grid electric wire cutter having a plurality of spaced, parallel, hot wires, and the wires are simultaneously passed through the stack to cut each sheet into plural elongated members, the surface of each of the openings in any given row of openings being substantially bisected into two substantially semicylindrical portions by a respective one of the wires. The elongated members thus obtained are adapted for use in protectively supporting and spacing a plurality of rolls of material such as cellophane in a multi-layer stack for storage or shipping.
REFERENCES:
patent: 3951078 (1976-04-01), Fowler et al.
patent: 3967993 (1976-07-01), Isomi
patent: 4103857 (1978-08-01), Levenhagen
patent: 4240557 (1980-12-01), Dickens
Ace Polymers, Inc.
Thibodeau Paul J.
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