Patents by Inventor Jerzy Madey

Jerzy Madey 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).

  • Braking rudder device
    Patent number: 4278040
    Abstract: This invention relates to braking rudder device consisting of turning rudder blade, horizontal plates and fixed rudder post, which is characterized by dividing the rudder blade in plane of symmetry in two blades, which are turning independently by an angle up to 110.degree. around their common axis where they are connected hingewise and their trailing edge is in the form of a wedge, while each of the blades are stiffened by horizontal plates which in extreme outboard position are bearing upon the rudder post and along the trailing edges are fitted vertical flaps capable of turning by an angle up to 90.degree..
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: July 14, 1981
    Assignee: Politechnika Gdanska
    Inventors: Jerzy Doerffer, Jerzy Madey, Jan Kozlowski, Andrzej Niepiekto