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:
Jul. 17, 2012
Filed:
May. 28, 2009
Mostafa Soliman, Waterloo, CA;
Eihab Mohamed Abdel-rahman, Waterloo, CA;
Raafat R. Mansour, Waterloo, CA;
Ehab Fahmy El-saadany, Waterloo, CA;
Mostafa Soliman, Waterloo, CA;
Eihab Mohamed Abdel-Rahman, Waterloo, CA;
Raafat R. Mansour, Waterloo, CA;
Ehab Fahmy El-Saadany, Waterloo, CA;
Arjae Spectral Enterprises Ltd., Waterloo, CA;
Abstract
A vibration-based power generator has a variable stiffness oscillator connected to a base. The oscillator comprises an inertial mass moving relative to the base in response to vibrations. The oscillator has a neutral position corresponding to a position of the oscillator when no vibrations are transmitted to the base. The oscillator has a first position where the mass is at a first distance and a second position where the inertial mass is at a second distance from a position of the mass when the oscillator is in neutral position. The second distance is greater than the first distance. A stiffness of the oscillator at the second position is greater than a stiffness of the oscillator at the first position. A transducer generating electric power in response to movement of the inertial mass is associated with the oscillator. A method of optimizing a vibration-based power generator is also presented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile