Cores for use in reeling up sheet materials

Details Cores for use in reeling up sheet materials Cores for use in reeling up sheet materials

1976-04-21

1977-05-03

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

428 36, 428516, B65H 7540

Patent

active

040210014

ABSTRACT:
Cylindrical cores for use in reeling up sheet materials, (particularly thermoplastics films) are provided with a resiliently compressable outer surface region composed of layers of a resiliently compressable foamed synthetic material. The synthetic material is preferably a crystalline polyolefine, especially a blend of low and high density polyethylene.

REFERENCES:
patent: 2350369 (1944-06-01), Sampair
patent: 3070281 (1962-12-01), Durkin
patent: 3179245 (1965-04-01), Bastion
patent: 3643888 (1972-02-01), Blue

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