Patents by Inventor Ernst-Helmuth Sprengel

Ernst-Helmuth Sprengel 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).

  • Split topping lift gear
    Patent number: 4363410
    Abstract: A split topping lift gear with a boom swingable through a plane between a pair of posts includes the boom and a jib hingedly connected to the upper end of the boom. The jib is elongated, with its hinged connection to the boom located between its ends. A relieving cargo tackle is connected to each end of the jib. One cargo tackle can be connected to the boom socket while the other is free to carry a load. The jib is adjustably positionable about its hinged connection in a vertical plane.
    Type: Grant
    Filed: November 5, 1980
    Date of Patent: December 14, 1982
    Assignee: Blohm & Voss AG
    Inventor: Ernst-Helmuth Sprengel