Jet ski grating

Details Jet ski grating Jet ski grating

1978-09-28

1980-12-09

Basinger, Sherman D.

Marine propulsion

Jet drive

440 47, B63H 1102, B63H 1110

Patent

active

042378125

ABSTRACT:
A jet ski has a hull, a motor mounted in the hull for driving a pump in an aft section of the hull, and a well formed in the bottom of the hull in front of an opening to the pump impeller. A grating which covers the well has a scoop below and in front of an opening to the pump housing for scooping water and directing it toward the impeller during use. Water from the impeller is forced under pressure through a jet nozzle aft of the impeller for providing motive power for the hull. The scoop has a concavely curved, inclined surface with a continuous and uninterrupted bottom edge projecting below the plane of the hull bottom surface, which results in increased velocity of the ski.

REFERENCES:
patent: 3040695 (1962-06-01), Austin
patent: 3147733 (1964-09-01), Engel
patent: 3292373 (1966-12-01), Tado
patent: 3826220 (1974-07-01), Jacobson
patent: 3942463 (1976-03-01), Johnson, Jr. et al.

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