Patents by Inventor Henricus J. T. M. van der Heyden

Henricus J. T. M. van der Heyden 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).

  • Control system
    Patent number: 4828430
    Abstract: A method of controlling the vertical position of a body in water, where the body has or is given a positive buoyancy, providing a structure which is of sufficient weight to give the body negative buoyancy, providing a structure which is separate from the body and from which to support the load over the body, and providing a device for lowering the load into engagement with the body.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: May 9, 1989
    Assignee: Heerema Engineering Service BV
    Inventor: Henricus J. T. M. van der Heyden
  • Device for handling an object such as a pipe or pile
    Patent number: 4483563
    Abstract: A device for handling an object such as a pipe comprising a cylindrical member, with four disposed adjacent one another elongate grooves or recesses in the peripheral direction in the surface thereof and extending in upward direction, with the first and last open at the bottom, and merging into one another at the top and bottom ends via trapezoidal grooves or recesses, the whole being adapted to receive and co-operate with at least one lug projecting from the surface of the pipe.
    Type: Grant
    Filed: August 3, 1982
    Date of Patent: November 20, 1984
    Assignee: Heerema Engineering Service B.V.
    Inventor: Henricus J. T. M. van der Heyden