Patents by Inventor Hendrik Marcel Slot

Hendrik Marcel Slot 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).

  • Cylinder head with valve seat and method for the production thereof
    Patent number: 9404400
    Abstract: Cylinder head made of cast iron has valve seats provided therein. The valve seats include an annular bore provided in the cast-iron material, a nickel-based intermediate layer which is provided thereon and a contact layer which is provided on said intermediate layer. The contact layer has an air-hardening tool steel, wherein said layers are provided in such a manner that an annularly acting compressive stress is present near the free surface of said contact layer. The invention further includes a method for the production thereof.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: August 2, 2016
    Assignee: DAF TRUCKS N.V.
    Inventors: Hendrik Marcel Slot, Sebastiaan Maria Krosse, Johannes Petruz Zijp
  • Pile driver
    Patent number: 8353360
    Abstract: A pile driver provided with a housing and at least one body connected with the housing so as to be moved back and forth over a predetermined path, the pile driver being further provided with a drive for moving the body back and forth over the path for the purpose of pile-driving, the pile driver comprising at least two parts movable relative to each other, respectively having at least a first type of sliding surface and at least a second type of sliding surface which during pile-driving slide along each other and between which there is a lubricant, wherein the first type of sliding surface is provided with polyether ether ketone.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: January 15, 2013
    Assignee: IHC Holland IE B.V.
    Inventors: Hendrik Marcel Slot, Arris Van Duijvenboden
  • CYLINDER HEAD WITH VALVE SEAT AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20110239858
    Abstract: Cylinder head made of cast iron has valve seats provided therein. The valve seats include an annular bore provided in the cast-iron material, a nickel-based intermediate layer which is provided thereon and a contact layer which is provided on said intermediate layer. The contact layer has an air-hardening tool steel, wherein said layers are provided in such a manner that an annularly acting compressive stress is present near the free surface of said contact layer. The invention further includes a method for the production thereof.
    Type: Application
    Filed: August 3, 2009
    Publication date: October 6, 2011
    Inventors: Hendrik Marcel Slot, Sebastiaan Maria Krosse, Johannes Petruz Zijp
  • Pile Driver
    Publication number: 20080223595
    Abstract: A pile driver provided with a housing and at least one body connected with the housing so as to be movable back and forth over a predetermined path, the pile driver being further provided with a drive for moving the body back and forth over the path for the purpose of pile-driving, the pile driver comprising at least two parts movable relative to each other, respectively having at least a first type of sliding surface and at least a second type of sliding surface which during pile-driving slide along each other and between which there is a lubricant, wherein the first type of sliding surface is provided with polyether ether ketone.
    Type: Application
    Filed: July 24, 2006
    Publication date: September 18, 2008
    Applicant: Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO
    Inventors: Hendrik Marcel Slot, Arris Van Duijvenboden