CLOSED WAVE SHAPED GROOVE
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United States of America Patent
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N/A
Issued Date -
Apr 23, 2009
app pub date -
Mar 15, 2007
filing date -
Jun 1, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A mechanism transforms a longitudinal reciprocation movement of a piston in a cylinder into a combined unidirectional rotation and reciprocating movement of the piston. In order to achieve this transformation the piston includes a closed wave shaped groove on its circumference. The closed wave shaped groove has recesses at its apexes. The recesses break the symmetry of the groove. Balls that are located in the cylinder protrude into the groove. When the piston is reciprocating, the groove slides on the balls. A flexible heat shrink ring secures the balls in place and assures that the balls are constantly biased toward the face of the groove.
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