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. 18, 2017
Filed:
Apr. 10, 2013
John Hincks Duke, Providence, RI (US);
John Hincks Duke, Providence, RI (US);
Other;
Abstract
A free stream fluid kinetic energy conversion device combines a large diameter freewheeling primary rotor with small diameter secondary power takeoff rotors placed within the lift induced blade tip vortices of the primary rotor. This enables use of high rotational speed generating units and avoids diseconomy of scale in gearbox expense. The device partially recovers otherwise lost blade tip vortex energy. The freewheeling primary rotor transmits no reaction torque to the support structure. Resilient buoyant tether deployment accommodates transient eddy induced structural loads.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile