Plastic reel

Details Plastic reel Plastic reel

1989-04-28

1991-03-05

Hail, III, Joseph J.

Winding, tensioning, or guiding

Bobbin or spool

Double-headed spool

156 731, 1563096, 242117, 2421186, 2421187, B65H 7514

Patent

active

049971425

ABSTRACT:
A plastic reel or spool for fine magnet wire or the like is formed of two molded plastic pieces, preferably identical. Each piece preferably has a flange and a section of the core. The core sections have internal transverse lips which abut when the two pieces are assembled. The flanges have openings which permit the introduction of an appropriately dimensioned ultrasonic welding tool head to weld the abutting lip surfaces together.

REFERENCES:
patent: 3334841 (1967-08-01), Burhop
patent: 3606195 (1971-09-01), Freeman et al.
patent: 3942741 (1976-03-01), Hussar et al.
patent: 3966139 (1976-06-01), Terpak
patent: 4259419 (1981-03-01), Uba et al.
patent: 4558957 (1985-12-01), Mock et al.
patent: 4606783 (1986-08-01), Guest
patent: 4607806 (1986-08-01), Yealy

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