Patents by Inventor Cornelus Johannes Van Der Wurf

Cornelus Johannes Van Der Wurf 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).

  • Mattress, provided with spring elements, such as coil springs
    Patent number: 6948205
    Abstract: The present invention relates to a mattress (10), for use as a bed, which mattress comprises substantially resilient material such as a foam rubber, spring devices (4) such as coil springs being provided in the mattress, in order to distribute the pressure exerted upon the mattress. The mattress according to the invention is characterised in that the mattress comprises at least two layers (1,2) placed one on top of the other, blind holes (3) for the accommodation of the spring devices (4) being made in at least one of said two layers, which blind holes connect to the boundary face between the two layers.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: September 27, 2005
    Assignee: Beter Bed Holding N.V.
    Inventors: Cornelus Johannes Van Der Wurf, Irene Clementine Mirjam Best
  • Mattress, provided with spring elements, such as coil springs
    Publication number: 20040025258
    Abstract: The present invention relates to a mattress (10), for use as a bed, which mattress comprises substantially resilient material such as a foam rubber, spring devices (4) such as coil springs being provided in the mattress, in order to distribute the pressure exerted upon the mattress. The mattress according to the invention is characterised in that the mattress comprises at least two layers (1,2) placed one on top of the other, blind holes (3) for the accommodation of the spring devices (4) being made in at least one of said two layers, which blind holes connect to the boundary face between the two layers.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 12, 2004
    Inventors: Cornelus Johannes Van Der Wurf, Irene Clementine Mirjam Best