Drive mechanism
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United States of America Patent
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-
Jun 26, 1990
Issued Date -
N/A
app pub date -
Dec 19, 1988
filing date -
Dec 8, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drive mechanism for driving a shaft in unison with a wheel. The drive mechanism includes a plurality of slave pistons and a like plurality of master pistons. Each slave piston is paired with a master piston to establish a plurality of paired pistons. A cam is operatively coupled to the wheel and to the master pistons to cause the master pistons to move between retracted and extended positions when the wheel is rotated.
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