Patents by Inventor Wim Visser

Wim Visser 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).

  • Patent number: 3962663
    Abstract: Inductive position determining device which comprises a signal winding having meander curves which extend at right angles to the direction in which displacement is determined and two pick-up windings which have corresponding meander curves. The meander curves have a given width and the meander curves of the two pick-up windings show intervals of increased width in which at least one of the meander curves of the other pick-up winding is accommodated. By special proportioning of the limbs of the meander curves the mean medians of the limbs of the two pick-up windings coincide. As a result the position determining device becomes largely insensitive to rotation errors between the carriages on which the signal winding and the pick-up windings respectively are placed.
    Type: Grant
    Filed: April 5, 1974
    Date of Patent: June 8, 1976
    Assignee: U.S. Philips Corporation
    Inventor: Wim Visser