Personal-watercraft testing apparatus

Details Personal-watercraft testing apparatus Personal-watercraft testing apparatus

2005-07-26

2005-07-26

Raevis, Robert (Department: 2856)

Measuring and testing

Vehicle chassis

Steering

Reexamination Certificate

active

06920782

ABSTRACT:
Personal watercraft to be test is set in a water tank. Water flow guide plate is positioned, rearward of the stern of the watercraft, for guiding a water jet from the watercraft to make a U-turn toward a front portion of the watercraft. Vertical partition plate is positioned, centrally of the width of an underwater portion of the tank, for directing the water jet to horizontally circulate around the partition plate. In another example, water flow guide plates are provided, at four corners of the underwater portion, for sequentially guiding the water jet from the watercraft to form a vertical circular water flow, and a horizontal partition plate is provided, centrally of the height of the underwater portion, for directing the water jet to vertically circulate around the partition plate.

REFERENCES:
patent: 3240056 (1966-03-01), Read
patent: 3543573 (1970-12-01), Hunziker
patent: 4903961 (1990-02-01), Solymosi
patent: 6283805 (2001-09-01), Ishigaki
patent: 6293836 (2001-09-01), Blanchard
patent: 11-132898 (1999-05-01), None

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