Patents by Inventor Barend van der Woerd

Barend van der Woerd 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).

  • Pipe bundle extracting/inserting device
    Patent number: 3958698
    Abstract: For withdrawing a bundle of pipes from a heat exchanger and for inserting such bundle the required tractive forces should be exerted on the bundle in a direction in line therewith by means of a key. In order to engage the pipe bundle at its front end and to firmly grip it in a manner that hanging through of the pipes is restricted to an admissible value, the gripper comprises a clamp having at least two clamping jaws adapted to engage the outer circumference of a front flange of the bundle of pipes.
    Type: Grant
    Filed: May 15, 1974
    Date of Patent: May 25, 1976
    Assignee: N.V. Machinefabriek Stork-Jaffa
    Inventor: Barend van der Woerd
  • Pipe bundle key
    Patent number: 3954187
    Abstract: For withdrawing a bundle of pipes from a heat exchanger and for inserting such bundle the required tractive forces should be exerted on the bundle in a direction in line therewith by means of a key. In order to avoid drawing the jacket of the heat exchanger from its supporting frame and to avoid deformation of said frame the bundle is engaged by a gripper arranged on a main frame suspended to a carriage provided with telescopic carrier legs.
    Type: Grant
    Filed: May 15, 1974
    Date of Patent: May 4, 1976
    Assignee: N.V. Machinefabriek Stork-Jaffa
    Inventor: Barend van der Woerd