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. 26, 1997
Filed:
Jan. 05, 1996
Michael A Karls, Hilbert, WI (US);
Matthew W Jaeger, Stillwater, OK (US);
George E Brown, Perkins, OK (US);
Darrin L Doty, Stillwater, OK (US);
Bruce A Schroeder, Stillwater, OK (US);
Brunswick Corporation, Lake Forest, IL (US);
Abstract
A sea water pump (130) for a marine propulsion system includes a housing (130) having a generally cylindrical pumping chamber (134) defined by a generally cylindrical sidewall (136) extending axially between opposite end walls (138 and 140). A multi-vaned rotary impeller (44) in the chamber is driven by an impeller shaft (28) extending axially into the chamber through one of the endwalls (40). An intake port (146) at the other endwall (140) has a first branch (148) providing radial flow (170, 172) into the chamber, and a second branch (154) providing axial flow (178) into the chamber. A discharge port (158) has a first branch (160) receiving radial flow (174, 176) out of the chamber, and a second branch (166) receiving axial flow (180) out of the chamber. The housing (132) is an integrally molded one-piece cup-shaped unit including the cylindrical sidewall (136) integral with an end cap (144) providing a flat inner wall wear surface (140) providing the noted endwall engaging an axial end (50) of the impeller in sealing sliding relation.