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:
Jun. 08, 1999
Filed:
Oct. 14, 1997
David J Gruenwald, Butte des Morts, WI (US);
James D Gruenwald, Hartford, WI (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A marine propulsion system, incorporating a jet pump, provides improved mass flow through the pump by utilizing an inlet opening which initially diverges to a transition point in front of an impeller and then diverges from the transition point past the impeller region to the outlet opening of the pump. Significantly increased flow rates per horsepower are achieved by reducing the normal restrictions caused by the inlet and outlet openings of known pumps. A transmission is provided to connect the output shaft of an engine to the drive shaft of the impeller. Either a V-drive or a torpedo-type gear housing can be employed.