Patents by Inventor Wilhelm Otto

Wilhelm Otto 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).

  • Apparatus for adjusting and locking pitch of a variable pitch propeller on a ship
    Patent number: 4643643
    Abstract: Apparatus for adjusting and locking the pitch of a variable pitch propeller. Within a propeller shaft, a hydraulic piston is provided which drives a rod, a plate, and levers to rotate the propeller blades in, and with respect to, the hub of the propeller. The root of the propeller within the hub has a conical portion which has a mating conical ring thereabout. This conical ring is engaged and locked into place with the conical portion of the propeller root and the propeller hub by hydraulic oil pressure, once the optimum pitch of the propeller blades is determined.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: February 17, 1987
    Assignee: Blohm & Voss AG
    Inventor: Wilhelm Otto