Ultrasonic actuator for a linear ultrasonic motor and linear ultrasonic motor having an ultrasonic actuator
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United States of America Patent
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Jul 12, 2016
Grant Date -
Jun 26, 2014
app pub date -
Nov 12, 2013
filing date -
Nov 12, 2012
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Abstract
An ultrasonic actuator includes at least one primary waveguide resonator, with each primary generator being in flat, at least one auxiliary waveguide resonator, with each auxiliary generator being in contact in order to form an acoustic standing wave, at least one crosspiece that connects one of the at least one primary waveguide resonators and one of the at least one auxiliary waveguide resonators to each other at least in sections, and wherein at least one friction track or friction rail is arranged on the crosspiece wherein the at least one primary waveguide resonator and the at least one auxiliary waveguide resonator is an open linear waveguide, and the at least one crosspiece functions as a totalizing device of the acoustic standing waves propagated in the primary and auxiliary waveguide resonators, so that the at least one crosspiece functions as the generator of a simulated travelling wave.
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