Light-tight film roll container

Winding – tensioning – or guiding – Coil holder or support – Spool or core

Patent

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Details

352 78R, 354281, G03B 104

Patent

active

047813377

ABSTRACT:
A film roll container is disclosed of the type having mating receptacle and cover portions. The portions have facing laterally extending central spindles for rotatably supporting opposite ends of a film roll when the cover portion is mounted on the receptacle portion. The portions further have securing means comprising a plurality of spaced-apart first and second mating frusto-conical bosses. The first boss has a flat end portion having an annular recess such that the end portion in cross section is W-shaped. The second boss has an axial V-shaped cavity in the end thereof such that the second boss defines a projection of W-shaped cross section which is nestable in light-tight relation within the annular recess.

REFERENCES:
patent: 2729401 (1956-01-01), Italiano
patent: 2920682 (1960-01-01), Lindberg
patent: 3159357 (1964-12-01), Berlings
patent: 3195720 (1965-07-01), Canniere
patent: 3421682 (1969-01-01), Eisenbach
patent: 3447731 (1969-06-01), Lehman
patent: 3563482 (1971-02-01), Auld
patent: 3904284 (1975-09-01), Blank
patent: 4466585 (1984-08-01), Maehara
patent: 4597658 (1986-07-01), Buelens

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