| DISCOVERY TECHNOLOGY INTERNATIONAL, LLLP Patent applications |
| Patent application number | Title | Published |
|---|
| 20110050038 | PIEZOELECTRIC ROTARY MOTOR WITH HIGH ROTATION SPEED AND BI-DIRECTIONAL OPERATION - Piezoelectric motor that provides high speed and bi-directional operation. A first rotor is disposed about a first shaft, and a second rotor separate from the first rotor is disposed about the first shaft and a second shaft. Each of the rotors and shafts are centered on a common axis. An annular shaped first piezoelement is centered on the axis and fixed to the housing. First and second annular piezoelements are disposed within the first rotor, configured to motivate rotation of the second shaft in a first rotation direction when stimulated with a first exciter voltage. The third and fourth piezoelement are disposed within the second rotor, configured to motivate rotation of the second shaft in a second direction (opposed from the first direction) when stimulated with an exciter voltage. | 03-03-2011 |
| 20100156240 | PIEZOELECTRIC MOTOR - A piezoelectric motor includes a piezoresonator body ( | 06-24-2010 |
| 20100156239 | PIEZOELECTRIC QUASI-RESONANCE LINEAR MOTORS BASED ON ACOUSTIC STANDING WAVES WITH COMBINED RESONATOR - A piezoelectric device includes a piezoresonator body ( | 06-24-2010 |
| 20100150754 | PIEZOELECTRIC PUMP - A pump body is provided including at least one inlet valve, at least one outlet valve, a substantially rigid top portion, a substantially rigid bottom portion, and collapsible side portions. The pump body also includes a base on or in the bottom portion and defining a rotational axis extending from the bottom portion. The pump body further includes a rotor shaft disposed along the rotational axis within the enclosure, a first end of the rotor shaft mechanically and rotatably coupled to the base, and a second end of the rotor shaft providing a cam surface for engaging the top portion and operable to cause motion of the top portion response to rotation of the rotor shaft. The pump body also includes at least one piezoelectric actuator engaging a surface of the rotor shaft, the piezoelectric actuator configured to cause the rotation of the rotor shaft. | 06-17-2010 |
| 20100148630 | PIEZOELECTRIC MOTOR WITH HIGH TORQUE - A piezoelectric motor ( | 06-17-2010 |
| 20100148102 | VALVES BASED ON REVERSIBLE PIEZOELECTRIC ROTARY MOTOR - A piezoelectric valve is provided that includes a valve body includes a plug and a drive body coupled to the valve body and operable to cause the rotatable plug to rotate about a rotational axis. The drive body includes a shaft disposed along the axis, the shaft statically coupled to the plug and rotatably coupled to the drive body. The drive body also includes a rotor assembly disposed about the axis and rotatably coupled to the drive body. The drive body further includes a first piezoelectric actuator disposed about the axis and statically coupled to the drive body, the first piezoelectric actuator configured to frictionally engage an inner surface of the rotor assembly. The drive body additionally includes a second piezoelectric actuator disposed about the axis and statically coupled to the shaft, the second piezoelectric actuator configured to frictionally engage the inner surface of the rotor assembly. | 06-17-2010 |
| 20090212661 | PIEZOELECTRIC GENERATOR OF MECHANICAL VIBRATIONS, AND PIEZOELECTRIC MOTORS BASED ON THE GENERATOR - A piezoelectric generator includes a piezoelectric ring having upper and lower plane surfaces and a first quality factor (Q-factor), a sound-wave conducting gasket acoustically coupled to the upper plane surface, a metal resonator ring positioned acoustically coupled to the conducting gasket, the metal resonator ring having a second Q-factor substantially greater than the first Q-factor, and at least one bent elastic pusher extending from a periphery of the metal resonator ring. In the generator, an external diameter of the conducting gasket is less than half of an external diameter of the metal resonator ring and the piezoelectric ring, the conducting gasket, and the metal resonator ring are concentrically aligned with respect to a rotational axis. | 08-27-2009 |
