Hybrid hydraulic-operated bicycle
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United States of America Patent
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Mar 21, 2017
Issued Date -
N/A
app pub date -
Aug 10, 2015
filing date -
Aug 25, 2014
priority date (Note) -
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Abstract
A hydraulically-powered bicycle having a frame, handle bars, a front tire, and a hydraulically powered drive wheel. The drive wheel is powered by oil from a sump which is pressurized by a pair of foot-operated pumps. An accumulator selectively stores and releases energy stored in a spring under the control of a control valve. When released the stored energy provides an energy boost to the bicycle. The pumps are dual piston devices that selectively couple a second piston to a first piston. The pumps implement a power control using the dual pistons. Coupling the pistons together is performed by a linkage assembly having linkage arms and linkage pivots.
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