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:
Oct. 30, 2012
Filed:
Dec. 18, 2009
Piezoelectric quasi-resonance linear motors based on acoustic standing waves with combined resonator
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 device includes a piezoresonator body () having opposing first and second surfaces and opposing third and fourth surfaces. The device also includes at least one common electrode () disposed on the second surface () and electrodes () disposed on the first surface () in pairs along a first longitudinal axis. The device further includes contact elements () disposed on the third () and the fourth () surfaces at contact locations along the first longitudinal axis and aligned between each pair of excitation electrodes. In the device, the piezoelectric body has a first order natural resonance frequency (ν) along a second longitudinal axis and an even order natural resonance frequency (ν) along the first longitudinal axis, where a percent difference between νand νis greater than 0% and less than or equal to 20%.