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US3570444A Expired / Lapsed US ⏱️ 0.0 years remaining

Motorski

Assignee: Individual
•
Filing: 1969-05-16
•
Granted: 1971-03-16
•
Expires: 1989-05-16
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Abstract

Abstract A craft for travel upon a water surface, the craft comprising a hull with a cockpit for carrying passengers, the hull carrying an outboard motor at its rear end, and the hull being mounted upon a single front ski and a single rear ski in longitudinal alignment with each other, the front ski being able to be steered manually.

Inventors

  • 👤 Robert L Farr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 21:50
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 263 words
In a Motorski, the combination of a hull, said hull being mounted upon a ski assembly, said ski assembly including a rear ski stationarily mounted to said hull and a front ski rotatable relative to said hull, and a steering mechanism for rotating said front ski, said hull comprising a streamlined body made of moulded plastic or like material, said hull comprising a hollow shell member including flotation chambers therewithin and along opposite sides thereof for the purpose of providing bouyancy, said hull being provided with a foam rubber pad upon an upper side thereof upon which a rider may sit, and said hull having a windshield in front thereof, said hull including a transverse board therewithin to which a conventional outboard motor is secured, said outboard motor extending downwardly through a lower portion of said hull and said rear ski, said front ski being secured to said steering mechanism, said steering mechanism including a steering post having a pair of handle bars at its upper end, a shift lever and a throttle control adjacent said handle bars, said steering post being supported within a plurality of bearings within said hull, and a lower end of said steering post being connected to said front ski, an elevator or rising plane being formed on each side of a vertical fin extending longitudinally between said front ski and said hull, said fin being integral with said ski, and each said plane comprising a generally flat foil that is slightly inclined upwardly toward its forward edge so to form an angle of attack during forward movement.
Claim 2
Dependent Claim 263 words
In a Motorski, the combination of a hull, said hull being mounted upon a ski assembly, said ski assembly including a rear ski stationarily mounted to said hull and a front ski rotatable relative to said hull, and a steering mechanism for rotating said front ski, said hull comprising a streamlined body made of moulded plastic or like material, said hull comprising a hollow shell member including flotation chambers therewithin and along opposite sides thereof for the purpose of providing bouyancy, said hull being provided with a foam rubber pad upon an upper side thereof upon which a rider may sit, and said hull having a windshield in front thereof, said hull including a transverse board therewithin to which a conventional outboard motor is secured, said outboard motor extending downwardly through a lower portion of said hull and said rear ski, said front ski being secured to said steering mechanism, said steering mechanism including a steering post having a pair of handle bars at its upper end, a shift lever and a throttle control adjacent said handle bars, said steering post being supported within a plurality of bearings within said hull, and a lower end of said steering post being connected to said front ski, an elevator or rising plane being formed on each side of a vertical fin extending longitudinally between said front ski and said hull, said fin being integral with said ski, and each said plane comprising a generally flat foil that is slightly inclined upwardly toward its forward edge so to form an angle of attack during forward movement.

References Cited (Backward Citations)

US2817101A Cited
US3158129A Cited
US3280786A Cited
US3483844A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-15 1974-09-14 1975-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-15 1978-09-14 1979-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-15 1982-09-14 1983-03-16 $7700.00 Window Closed / Lapsed

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