Patents by Inventor Mel Lehto

Mel Lehto 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).

  • Butt mounted riser hinge
    Patent number: 4991259
    Abstract: A butt mounted riser hinge has a plastic cam assembly mounted in two metallic cylinders so that their camming surfaces do not rub against the metallic cylinders and become readily worn. The cam assembly includes a male member with bevelled end that is rotatably received in a cup-shaped female member. The hinge further includes a spring and shell assembly in sliding arrangement with one of the metallic cylinders.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: February 12, 1991
    Assignee: Kason Industries, Inc.
    Inventors: Burl Finkelstein, Mel Lehto
  • Table leg mounting socket
    Patent number: 4793579
    Abstract: A socket for use in mounting a cylindrical leg to a table is comprised of a tube that has a generally cylindrical wall one end of which is inwardly flared to form a circular lip of a selected inside diameter substantially equal to the outside diameter of the leg. The generally cylindrical wall is formed with at least three inwardly projecting ribs that the located tangentially about a geometric cylindrical boundary of the same diameter as the selected inside diameter of the wall end lip.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: December 27, 1988
    Assignee: Kason Industries, Inc.
    Inventors: Burl Finkelstein, Mel Lehto