Double involute pinion-face gear drive system
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United States of America Patent
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Mar 3, 2015
Grant Date -
Feb 21, 2013
app pub date -
Aug 17, 2011
filing date -
Aug 17, 2011
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Abstract
A double involute pinion-face gear drive provides transmission of torque and speed, or direction of movement modification between non-intersecting shafts at right angles to one another. A double involute cylindrical pinion on one axis, engages a rotatable disk-shaped gear on the second axis. The teeth of the pinion are curved in an abridged, normal or extended involute shape. Likewise, the teeth of the face gear are curved in abridged, normal or extended involute shape in the lengthwise direction of the teeth. These gear drives can be simultaneously bi-rotational and bi-directional and allow a relatively wide range of speed ratios, as low as 1:1 and as high as 7.5:1.
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