Jet propulsion pump

Details Jet propulsion pump Jet propulsion pump

2001-07-06

2003-03-18

Avila, Stephen (Department: 3617)

Marine propulsion

Jet drive

Reexamination Certificate

active

06533622

ABSTRACT:

CROSS-REFERENCE TO RELATED APPLICATIONS
This patent application is a National Phase Concerning a Filing Under 35 U.S.C. 371, claiming the benefit of priority of PCT/AU99/01136, filed Dec. 22, 1999, which claims the benefit of priority of Australian Patent Application Number PP8047, filed Jan. 7, 1999, all of which are incorporated herein by reference.
FIELD OF THE INVENTION
This invention relates to a jet propulsion pump and in particular relates to a jet propulsion pump for use in canoes, kayaks and similar watercraft.
SUMMARY OF THE INVENTION
In accordance with a first aspect of the present invention there is provided a jet propulsion pump including a propeller mounted on a shaft for axial rotation, means to axially support the shaft with the propeller positioned within a pump chamber, and a downwardly inclined outlet connected to an aperture in the pump chamber. In accordance with a second aspect of the present invention there is provided a watercraft including a jet propulsion pump mounted in a floor of the watercraft, intermediate fore and aft of the watercraft, wherein the jet propulsion pump is in accordance with the present invention.


REFERENCES:
patent: 3098464 (1963-07-01), Holland
patent: 4278431 (1981-07-01), Krautkremer et al.
patent: 4411630 (1983-10-01), Krautkremer et al.
patent: 4459117 (1984-07-01), Jordan
patent: 4838821 (1989-06-01), Krautkremer
patent: 5346363 (1994-09-01), Stallman et al.
patent: 5520557 (1996-05-01), Kaul et al.

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