Patents by Inventor Teunis Vermeulen

Teunis Vermeulen 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).

  • Suction pipe position control
    Patent number: 4242815
    Abstract: Method and apparatus for controlling the position of the last section of a suction pipe with a drag head, wherein the suction pipe comprises at least two pivotally connected sections and wherein there are provided at least two independently operable hoisting winches for the suction pipe and wherein the hoisting installations are operated so that the last section of the suction pipe with drag head is kept at a specific, pre-determined angle of inclination.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: January 6, 1981
    Assignee: Koninklijke Bos Kalis Westminster Group N.V.
    Inventor: Teunis Vermeulen