Recording tape cartridge

Details Recording tape cartridge Recording tape cartridge

2005-12-27

2005-12-27

Matecki, Kathy (Department: 3654)

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

C242S345000, C242S347000, C242S348000, C242S348200

Reexamination Certificate

active

06978958

ABSTRACT:
Structure of a lower case that reinforces a recording tape cartridge. At an inner side of the lower case, an annular projecting portion is provided along and at an inner side of a reel area rib that demarcates a reel area, raising stiffness of the case. At a periphery of a hole for positioning, which is formed in an outer face of the lower case, a recessed surface, which provides a height direction reference surface, is formed. At the inner side of the lower case, a boss is formed in correspondence to the hole for positioning. The boss is located along an outer face of the reel area rib. A thickness-enhancing portion is formed at the periphery of a base portion of the boss. Thus, thickness at the reference surface, that is, the recessed surface, is substantially the same as thickness at portions therearound.

REFERENCES:
patent: 3980255 (1976-09-01), Serizawa
patent: 4889296 (1989-12-01), Watanabe et al.
patent: 5377928 (1995-01-01), Gelardi et al.
patent: 5702062 (1997-12-01), Kaku et al.
patent: 5734540 (1998-03-01), Jacobs et al.
patent: 5927632 (1999-07-01), Kaku et al.
patent: 6224007 (2001-05-01), Kaku et al.

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