Patents by Inventor DOUWE HOEKSTRA

DOUWE HOEKSTRA 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).

  • Publication number: 20190047030
    Abstract: A method of manufacturing a component from a high-strength blank metal strip or sheet (MS) having a tensile strength of at least 850 MPa. The method comprises reducing the thickness (T) of the strip or sheet (MS) in a folding section (FS) so that a shaped section (SS) having a predetermined shape is obtained in at least a part of the folding section (FS). The strip or sheet (MS) is then folded along the shaped section (SS), so that a surface of a first section (1S) becomes arranged adjacent and parallel to a surface a the second section (2S) of the metal strip (MS). Finally, the first and second sections (1S,2S) are joined, so that the strip or sheet (MS) remains folded. With this method, it is possible to use high-strength steel, e.g. AISI 301 stainless steel, and still fold a thin strip or sheet (MS) without undesired cracks in the folding section. For example, the invention is applicable for manufacturing of plate-shaped hair-pulling elements (HPE) for a cutting unit (CU) of a shaving apparatus.
    Type: Application
    Filed: February 10, 2017
    Publication date: February 14, 2019
    Inventors: JAN WYTZE VAN DER WEIT, GERRIT KLASEBOER, HUBERT SJOERD BLAAUW, JAN AUKE HOVIUS, CHRISTO POSTMUS, MARCO VAN DER MOLEN, DOUWE HOEKSTRA
  • Patent number: 8596207
    Abstract: A flat pallet for handling and storing articles includes two identical boards. Each board has at least one length side which is provided with a coupling mechanism. The coupling mechanism includes a grip element and a receiving element of a configuration complementing the grip element. The grip element is spaced from a first transverse side of the board by a distance which corresponds to a distance of the receiving element from a second transverse side of the board, wherein the grip element of one board is constructed for engagement in the receiving element of the other board.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: December 3, 2013
    Assignee: Georg Utz Holding AG
    Inventors: Jean-Marc Dubois, Douwe Hoekstra, Marco Marti
  • Publication number: 20090145339
    Abstract: A flat pallet for handling and storing articles includes two identical boards. Each board has at least one length side which is provided with a coupling mechanism. The coupling mechanism includes a grip element and a receiving element of a configuration complementing the grip element. The grip element is spaced from a first transverse side of the board by a distance which corresponds to a distance of the receiving element from a second transverse side of the board, wherein the grip element of one board is constructed for engagement in the receiving element of the other board.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Applicant: Georg Utz Holding AG
    Inventors: JEAN-MARC DUBOIS, DOUWE HOEKSTRA, MARCO MARTI