Collapsible winding core and method of making same

Details Collapsible winding core and method of making same Collapsible winding core and method of making same

2007-03-13

2007-03-13

Rivera, William A. (Department: 3654)

Winding, tensioning, or guiding

Coil holder or support

Spool or core

C242S610000, C242S610100

Reexamination Certificate

active

10924355

ABSTRACT:
A winding core capable of being made in relatively thick-walled configurations and yet capable of being readily collapsed into a flattened configuration for shipping or storage prior to use comprises a plurality of fibrous plies helically wound one atop another and adhered together to form a tube. The plies are arranged in two or more groups of two or more plies each. The plies of each group are adhered to one another over at least a substantial majority of their facing surfaces, but the adjacent groups are non-adhered to each other over at least a substantial majority of their facing surfaces.

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