Patents by Inventor Pieter Tolhoek

Pieter Tolhoek 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 connection for pipe pieces made of plastic
    Publication number: 20060049631
    Abstract: The invention relates to a pipe connection for mutually connecting two pipe pieces made from fibre-reinforced plastic, comprising: an external screw thread arranged on a male end of a first pipe piece, an internal screw thread arranged on a female end of a second pipe piece and fitting onto the external screw thread, and a substantially annular cavity which is placed between the screwed together pipe pieces and which is suitable for filling with a sealing material, wherein the cavity is filled with a solid material.
    Type: Application
    Filed: April 25, 2003
    Publication date: March 9, 2006
    Inventor: Pieter Tolhoek