Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Cartridge system
Reexamination Certificate
2006-06-27
2006-06-27
Rivera, William A. (Department: 3654)
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Cartridge system
C242S348000, C360S132000
Reexamination Certificate
active
07066421
ABSTRACT:
A recording tape cartridge is disclosed wherein when in non-use, a reel accommodated in a case and having a recording tape wound thereon is prevented from rotating by being meshed with a braking member which is non-rotatble with reference to the case; and when in use, in response to the braking member being pushed up by a release pad or a clutch member, the reel is released from the meshed state and allowed to rotate together with the release pad or the clutch member. With the rotation of the reel, the braking member has its pivot portion disposed in sliding contact with a sliding contact portion formed at a portion corresponding to an axial center of the release pad or the clutch member while being pressed against the sliding contact portion by a biasing force of a compression coil spring. The recording tape cartridge is designed such that a relation μ×L≦0.4 holds between a length L (mm) of the compression coil spring along the axis line of the reel when the reel rotates together with the release pad or the clutch member and a coefficient of dynamic friction μ between the pivot portion of the braking member and the sliding contact portion of the release pad or the clutch member.
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patent: 11-250618 (1999-09-01), None
patent: 2003-45143 (2003-02-01), None
Fuji Photo Film Co. , Ltd.
Rivera William A.
Sughrue & Mion, PLLC
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