Endless belt power transmission systems or components – Positive drive pulley or guide roll – And additional coaxial surface for engaging same belt in...
Patent
1987-12-14
1989-03-21
Bui, Thuy M.
Endless belt power transmission systems or components
Positive drive pulley or guide roll
And additional coaxial surface for engaging same belt in...
474 84, F16H 5502
Patent
active
048139173
ABSTRACT:
A drive assembly for a powered mechanism initially demonstrated in the form of a bicycle type vehicle wherein the drive assembly is manually powered and comprises a gear assembly including a plurality of gear pairs. Each gear of each gear pair is connected to either a drive shaft or a driven axle and the various gears of the plurality of gear pairs are specifically sized and drivingly interconnected to one another so as to maximize efficiency in operation and provide a smooth transmission of power from the drive shaft to the driven axle. Energy in the form of a pulling force is retransmitted back to the drive shaft to render the subject drive assembly more efficient and require less manual exertion and manpower delivered into the system of the drive assembly to maintain the vehicle or other mechanism being driven in operation.
REFERENCES:
patent: 1304450 (1919-05-01), Bublitz
patent: 4705493 (1987-11-01), Lin
Bui Thuy M.
Malloy John Cyril
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