Plastic bobbin or quill

Details Plastic bobbin or quill Plastic bobbin or quill

1975-03-17

1976-11-23

Gilreath, Stanley N.

Winding, tensioning, or guiding

Bobbin or spool

Cop-tube type

264 51, B65H 7508, B65H 7518

Patent

active

039932656

ABSTRACT:
A quill or bobbin for holding a supply of yarn wound thereon in overlapping layers having an elongated barrel and an enlarged butt end integral therewith. The entire quill is molded utilizing a mixture of thermoplastic material and a blowing agent. A substantial portion of the barrel is solid and has a hardened surface with a less dense interior center core defined by set microscopic bubbles. An axial bore extends through the butt end of the quill and a dense hardened interior surface encompasses the bore.

REFERENCES:
patent: 2605979 (1952-08-01), Gartrell
patent: 2666599 (1954-01-01), Battersby
patent: 2793822 (1957-05-01), Consoletti
patent: 2967026 (1961-01-01), Deventer
patent: 3190580 (1965-06-01), Guerin et al.
patent: 3268636 (1966-08-01), Angell, Jr.
patent: 3306960 (1967-02-01), Weissman et al.
patent: 3307801 (1967-03-01), Bagwell, Jr. et al.
patent: 3719441 (1973-03-01), Spaak et al.
patent: 3793415 (1974-02-01), Smith

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