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:
Aug. 21, 2007
Filed:
May. 25, 2004
Applicant:
Herbert L. Williams, East Palatka, FL (US);
Inventor:
Herbert L. Williams, East Palatka, FL (US);
Assignee:
OpenHydro Group Limited, Dublin, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03B 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydro electric turbine having a flexible, collapsible front shroud, the upstream open end of the front shroud being controlled by a draw line passing through purse rings, whereby the upstream end can be closed by drawing on the draw line, thereby stopping water flow through the turbine. Decreased drag allows the turbine to rise to the surface. Opening the upstream end so that water flows into the turbine increases drag to lower the turbine into the water and causes rotation of the turbine blades.