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:
Mar. 21, 2017
Filed:
Jan. 20, 2012
Jason Dale, Chester, GB;
Aage Bjørn Andersen, Rælingen, NO;
Jason Dale, Chester, GB;
Aage Bjørn Andersen, Rælingen, NO;
SEA-LIX AS, Raelingen, NO;
Abstract
A rotor apparatus for extracting energy from bidirectional fluid flows comprises a first rotor () mounted for rotation about an axis of rotation () in a first direction of rotation, the first rotor () having at least one helical blade () with a pitch that decreases in a direction along the axis of rotation (); and a second rotor () mounted for rotation about the same axis of rotation () in an opposite direction of rotation and having at least one helical blade () with a pitch that increases in the same direction along the axis of rotation (), wherein fluid exiting the first rotor () is passed to the second rotor ().