Patents by Inventor Ferdo Crnogorac

Ferdo Crnogorac has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4014283
    Abstract: A watercraft comprising a flotation body having at least one seat for a rider, and front and rear tandem skis. The rear ski is flexibly connected to the body by spring supports, and the front ski is steerable by a steering column that passes upwardly through a bushing in the front end of the body. The bushing is pivoted about a transverse axis so that the steering column has limited swinging movement in a vertical longitudinal plane. The bottom end of the steering column is pivotally connected to the front ski near the midpoint thereof, and a resilient strut extends from the forward end of the ski to the steering column just below the bottom end of the bushing. A motor is mounted within the body and has a drive shaft extending downwardly to drive a propeller located below the bottom surface of the skis. The drive shaft is pivoted for fore-and-aft swinging movement, and an adjustable link connects the bottom end of the drive shaft to the top end of the bushing.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: March 29, 1977
    Inventor: Ferdo Crnogorac