Rapid palatal expander
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United States of America Patent
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May 9, 2017
Issued Date -
N/A
app pub date -
Jul 16, 2014
filing date -
Jul 17, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Rapid palatal expander which has an actuator element provided with a drive head and with two threaded stems, as well as a first and a second main bodies provided with aligned female threads, each engaged by a threaded stem of the actuator element for guiding a simultaneous movement of the main bodies. A plurality of longitudinal seats are provided on a peripheral surface of the drive head. A plate is connected to one of the two main bodies and is provided with a flexible tab elastically in abutment against the peripheral surface of the drive head and able to be selectively engaged with its profile in the longitudinal seats of the head at angular adjustment positions assumed by the latter.
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