Patents Assigned to Ligtvoet Products B.V.
  • Wheelchair which is provided with a swivel castor
    Patent number: 5984333
    Abstract: A wheelchair with adjustable swivel castors is described. The wheelchair includes a mechanism to limit the swivel range of the castors. The swivel range may be limited manually or automatically as a function of the terrain or the speed of the chair.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: November 16, 1999
    Assignee: Ligtvoet Products B.V.
    Inventors: Marius Constantijn, Arnoldus V. Vorst