Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1988-11-07
1989-09-05
Petrakes, John
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 685, 242 718, 242 783, B65H 7528, B65H 7518
Patent
active
048631116
ABSTRACT:
In a preferred embodiment, there is a film reel having a film-threading film-retaining core, the core containing free-space for threading a mounting-end of a film to be would on the reel, and across at least a portion of the core's free space there being a floor mounting the outer reel structure onto the inner core structure that is mountable on a driving spindle, with spaced-apart posts extending upwardly from the floor and the posts being spaced from each of the mounting spaces inside core walls and the space's inside surface of the outside walls of the core, with each of the posts anchored by anchoring structure connected to the core's inside core structure, the upwardly extending posts having a large exaggerated arcuate surface providing large surface area for contact with film threaded thereagainst, there being a flange extending angularly radially inwardly from the inside surface of the outside wall of the core, the flange extending between second and third posts and extending radially inwardly sufficiently to press against the threaded film when threaded within the threading space of the core such that the pressed threaded film is held tautly.
REFERENCES:
patent: 2954941 (1960-10-01), Hultgren
patent: 3351298 (1967-11-01), Taesler et al.
patent: 3357653 (1967-12-01), Otsuka
patent: 3361380 (1968-01-01), Mizutani
patent: 3648944 (1972-03-01), Fujiwara et al.
patent: 3675869 (1972-07-01), Grant
patent: 3743204 (1973-07-01), Hertel
patent: 3982709 (1976-09-01), Hertel
patent: 4540134 (1985-09-01), Schankler
patent: 4629140 (1986-12-01), La Casse
Nase Frank
Nase Michael
Hough William T.
Petrakes John
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