Patents by Inventor Jerzy W. Kolecki

Jerzy W. Kolecki 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).

  • Power unit for hang-gliders
    Patent number: 4546938
    Abstract: A power unit for a hang-glider (1) or the like comprises a combustion motor (2) connected to one end of a drive shaft (9) and a propeller (10) connected to the other end of the drive shaft. To enable the power unit to be used both with pulling or traction-force propellers and pushing propellers (10) there is provided between the drive shaft (9) and the shaft (22) of the propeller (10) a flexible coupling (14) which enables the angle between the drive shaft and the propeller shaft to be adjusted at least in a vertical direction.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: October 15, 1985
    Inventor: Jerzy W. Kolecki