Floating time bar
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United States of America Patent
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Apr 28, 2015
Grant Date -
Jul 24, 2014
app pub date -
Jan 18, 2013
filing date -
Jan 18, 2013
priority date (Note) -
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Abstract
A rack-and-pinion mechanism includes a first rack and a second rack, a first pinion and a second pinion, and a timing bar. Each of the racks includes a first set of teeth provided longitudinally therealong. Each of the first pinion and the second pinion includes a second set of teeth provided circumferentially therearound. The first pinion and the second pinion are configured to rotate along the first rack and the second rack respectively through engagement of the second set of teeth with the first set of teeth. The timing bar includes a first end and a second end. The first end and the second end are configured to be coupled to the first pinion and the second pinion respectively so that the first and second pinions rotate as one. The first pinion is configured to be movable with respect to the timing bar along a longitudinal axis of the timing bar.
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