Planetary gear transmission systems or components – Condition responsive control – Centrifugally controlled clutch or brake
Reexamination Certificate
2011-01-23
2011-10-11
Lewis, Tisha (Department: 3655)
Planetary gear transmission systems or components
Condition responsive control
Centrifugally controlled clutch or brake
C475S270000, C475S312000
Reexamination Certificate
active
08033945
ABSTRACT:
An enclosed bicycle drivetrain is provided that produces a range of drive ratios suitable for any riding purpose. The enclosure of substantially the entire drivetrain is made practical by the synergistic cooperation of a planetary drive system using a single chain ring and a streamlined rear derailleur system that separates the tensioning and chain guiding functions of a conventional rear derailleur, allowing the rear derailleur components to remain substantially within the shadow of the outer perimeter of the bicycle frame. The planetary drive system is provided with a unique compound pawl that may be easily disengaged from a planetary ratchet member under full riding loads by the application of a small force to destabilize the pawl. A unique shift buffer mechanism cooperates with the rear derailleur system to buffer and store up to the full range of available shift commands.
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Catania Michael
Clause Eight IPS
Lewis Tisha
Patterson Bicycle Transmission, LLC
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