Light shielding flange

Details Light shielding flange Light shielding flange

2005-09-13

2005-09-13

Thomas, Alexander S. (Department: 1772)

Special receptacle or package

For roll or reel

With end protector

C242S607000, C242S608000, C242S608600, C242S614000, C242S118610

Reexamination Certificate

active

06942096

ABSTRACT:
Paired light shielding flange members, each having:a hollow cylindrical boss section to be inserted into a core around which a photosensitive material has been wound, wherein a plurality of rip sections are formed on the exterior surface of the cylindrical boss section parallel with an axis of the boss section, and an interior surface portion of rib is grooved in parallel with the axis of the hollow cylindrically boss section, anda flange section, integrated concentrically with the hollow cylindrical boss section, to prevent the edge of photosensitive material from being exposed to light.

REFERENCES:
patent: 0 692 734 (1996-01-01), None
patent: 1 016 908 (2000-07-01), None
patent: 1 132 769 (2001-09-01), None
patent: 1 260 857 (2002-11-01), None

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