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. 27, 2010
Filed:
Mar. 23, 2007
Jeremy L. Alby, Oshkosh, WI (US);
Daniel J. Guse, Fond du Lac, WI (US);
Edward M. Thull, Omro, WI (US);
Terence C. Reinke, Oshkosh, WI (US);
Jeremy L. Alby, Oshkosh, WI (US);
Daniel J. Guse, Fond du Lac, WI (US);
Edward M. Thull, Omro, WI (US);
Terence C. Reinke, Oshkosh, WI (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A marine propeller is provided with a valve that progressively blocks exhaust flow into aerating relation with the blades of the propeller as the propeller rotational speed increases. A piston within a housing moves radially outwardly, in response to centrifugal forces, as the propeller increases in rotational speed. This movement progressively blocks an aperture that allows the flow of exhaust gas into the region of the propellers. In certain embodiments, a secondary flow path is allowed even when the piston has moved to its extreme outward radial position.