Patents by Inventor Hendrik Polinder

Hendrik Polinder 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).

  • Magnet and device for magnetic density separation
    Patent number: 9833793
    Abstract: A planar magnet for magnetic density separation, comprising an array of pole pieces succeeding in longitudinal direction of a mounting plane, each pole piece having a body extending transversely along the mounting plane with a substantially constant cross section that includes a top segment that is curved to distribute the magnetic field associated with the top surface of the pole piece such that its strength transverse to the mounting plane is substantially uniformly distributed in planes parallel to the mounting plane, the curved top segments having a width (w) in longitudinal direction of the mounting plane and a maximum height (h) transverse to the mounting plane, wherein the top segments of successive pole pieces are unequal in height and/or width.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: December 5, 2017
    Assignee: Urban Mining Corp B.V.
    Inventors: Hendrik Polinder, Peter Carlo Rem
  • MAGNET AND DEVICE FOR MAGNETIC DENSITY SEPARATION
    Publication number: 20160038949
    Abstract: A planar magnet for magnetic density separation, comprising an array of pole pieces succeeding in longitudinal direction of a mounting plane, each pole piece having a body extending transversely along the mounting plane with a substantially constant cross section that includes a top segment that is curved to distribute the magnetic field associated with the top surface of the pole piece such that its strength transverse to the mounting plane is substantially uniformly distributed in planes parallel to the mounting plane, the curved top segments having a width (w) in longitudinal direction of the mounting plane and a maximum height (h) transverse to the mounting plane, wherein the top segments of successive pole pieces are unequal in height and/or width.
    Type: Application
    Filed: March 21, 2014
    Publication date: February 11, 2016
    Inventors: Hendrik Polinder, Peter Carlo Rem