Patents by Inventor Friedhelm Bick

Friedhelm Bick 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).

  • Patent number: 4756055
    Abstract: A hinge joint comprises a hinge leaf, a closure element, a knuckle bearing, a hinge bolt defining a hinge joint axis and pivotally mounting the closure element via the knuckle bearing, a hinge bearing having a base securable adjacent to an edge of an opening, the hinge bearing having legs between which the knuckle bearing is positioned and which carries the hinge bolt, the knuckle bearing having at least one first protrusion extending axially outwardly and arranged concentrically relative to the hinge bolt, one of the legs having an axially inwardly extending protrusion which axially overlaps the first protrusion, the hinge leaf together with the closure element being arranged so that it can be removed from the hinge bearing only after removal of the hinge bolt and after opening the closure element through a predetermined pivot angle, the first protrusion being annular, the second protrusion being formed as an enclosing retainer of one of the legs and arranged radially outside of one of the first protrusions,
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: July 12, 1988
    Assignee: Carl Sulberg GmbH & Co.
    Inventors: Franz-Peter Welsch, Fritz Otto, Friedhelm Bick