Patents by Inventor Donald R. Bizek

Donald R. Bizek 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).

  • Torsion hinge with tubular pivot pin
    Patent number: 5533234
    Abstract: A hinge is provided with a tubular hinge pin. This allows the use of a torsion rod, inserted through the tubular hinge pin, of any desired diameter smaller than that of the interior of the hinge pin, thereby permitting easy adaptation of the resistance provided by the torque rod.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: July 9, 1996
    Assignee: Stocker Hinge Manufacturing Company
    Inventor: Donald R. Bizek
  • Torque hinge having its knuckles individually crimped around the hinge pin
    Patent number: 4788748
    Abstract: A permanently adjusted friction hinge assembly manufactured of metal and comprised of one or more hinge leaves with one or more circular through hole knuckles squeezed around a circular plastic pin or otherwise compressible material to provide frictional torque resistance between said pin and one or more hinge leaves. The inside diameter of all hinge leaf knuckles are permanently adjusted at moment of manufacture by the amount of compression applied to said knuckles around the pin.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: December 6, 1988
    Assignee: Stocker Hinge Manufacture Co.
    Inventor: Donald R. Bizek