Patents by Inventor Jakob de Nachtegaal

Jakob de Nachtegaal 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).

  • Hoisting yoke
    Patent number: 4394041
    Abstract: A hoisting yoke for a load. At its ends the beam or frame of the yoke has points of suspension for the load and a hoisting point. The hoisting point is displaceable for distributing the weight of the load uniformly over the points of suspension. The beam or frame of the yoke is provided with hoisting points at its opposite ends. The intermediate hoisting point is displaceable dependent on the load picked up by the hoisting points at the ends such that all of the hoisting points carry an equal part of the load.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: July 19, 1983
    Assignee: IHC Holland N.V.
    Inventor: Jakob de Nachtegaal