Patents Assigned to Velleman-Switch, naamloze vennootschap
  • Membrane for membrane switches and composing elements thereof
    Patent number: 4695681
    Abstract: Membrane for membrane switches and composing elements thereof, characterized thereby that it mainly consists of a profiled top layer (2) made of a resilient material and of an underlying supporting layer (1) that is provided with an opening (3), the top layer (2) having a recess fitting in the opening (3) and consisting of side-walls (5) and a part suspended therebetween having the shape of a spherical segment constituting the membrane (6) proper.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: September 22, 1987
    Assignee: Velleman-Switch, naamloze vennootschap
    Inventor: Koen Velleman