Patents by Inventor Benedictus C. Bonekamp

Benedictus C. Bonekamp 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).

  • Composite ceramic micropermeable membrane, process and apparatus for producing such membrane
    Patent number: 5089299
    Abstract: A microporous ceramic membrane comprises a porous support and a microporous layer firmly bound to each other, with a sharp geometric transition between the support and the microporous layer, the microporous layer being free of pin-holes. The microporous membrane has a predetermined average pore diameter and it is suitable for microfiltration. The membrane can comprise further microporous layers making it suitable for ultrafiltration and hyperfiltration. The membrane can be prepared by suspension coating of a support, whereby the support and/or the suspension are pretreated in order to lower temporarily the affinity between the support and the suspension.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: February 18, 1992
    Assignee: Hoogovens Groep BV
    Inventors: Willem H. Van 'T Veen, Albertus J. G. Engel, Benedictus C. Bonekamp, Hubertus J. Veringa, Rinse A. Terpstra
  • Composite ceramic micropermeable membrane, process and apparatus for producing such membrane
    Patent number: 4981590
    Abstract: A microporous ceramic membrane comprising a porous support and a microporous layer firmly bound to each other, with a sharp geometric transition between the support and the microporous layer, the microporous layer being free of pin-holes. The microporous membrane has a predetermined average pore diameter and it is suitable for microfiltration. The membrane can comprise further microporous layers making it suitable for ultrafiltration and hyperfiltration. The membrane can be prepared by suspension coating of a support, whereby the support and/or the suspension are pretreated in order to lower temporarily the affinity between the support and the suspension.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: January 1, 1991
    Assignee: Hoogovens Groep BV
    Inventors: Willem H. Van 'T Veen, Albertus J. G. Engel, Benedictus C. Bonekamp, Hubertus J. Veringa, Rinse A. Terpstra