The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2012
Filed:
Dec. 16, 2009
Serhiy Petrenko, Kiev, UA;
Valentin Rangelov Zhelyaskov, Sarasota, FL (US);
Serhiy Petrenko, Kiev, UA;
Valentin Rangelov Zhelyaskov, Sarasota, FL (US);
Discovery Technology International, Inc., Sarasota, FL (US);
Abstract
A piezoelectric motor includes a piezoresonator body () having opposing front and back surfaces and opposing first and second end surfaces. The front () and the back () surfaces are substantially parallel to first () and second () longitudinal axes of the piezoresonator body. The end surfaces () are substantially perpendicular to the first longitudinal axis and substantially parallel to the second longitudinal axis and are separated by a length (L) of the piezoresonator body. The motor also includes at least one common electrode () disposed on the back surface and at least 6n excitation electrodes (-) disposed across the front surface in two symmetric rows extending along L, where n is an integer ≧1. In the motor, the piezoelectric body has an norder longitudinal vibration frequency (ν) along L and a 3norder bending vibration frequency (ν) along L, and where νand νare substantially equal.