Patents Assigned to David G. Knotter
  • Cane
    Patent number: 4527579
    Abstract: A foldable cane constructed in three sections each joined by pairs of hinge links having laterally displaced hinge pins which permit adjoining sections to be swung through 180.degree. relative to each other so that in the folded configuration of the cane the three sections are disposed along side each other in essentially parallel relationship to occupy a minimum amount of space. The pairs of hinge links are equipped with spring urged slidable locking sleeves for locking the hinge links in axial alignment when the cane is in use.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: July 9, 1985
    Assignee: David G. Knotter
    Inventors: David G. Knotter, Jody L. Numbers