Patents by Inventor Rudolf Heller

Rudolf Heller 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: 4106219
    Abstract: A plastic bone used as a training device or teaching aid for a surgeon for mechanically connecting bone fractures, comprising a plastic molded part, the size and dimension of which approximates that of a human extremity-shaft bone having an internal hollow compartment or cavity which extends past a marrow cavity region at the center of the shaft towards both shaft ends into the region of the spongy structured bone lacunae (spongiosa) and widens. The wall structure of the bone approximately corresponds to the solid or compact wall parts (compacta) of the natural structure in weight, strength and mechanical workability.
    Type: Grant
    Filed: November 19, 1976
    Date of Patent: August 15, 1978
    Assignees: Synthes AG Chur, Contraves AG
    Inventors: Urs Schneider, Rudolf Heller
  • Patent number: 4025256
    Abstract: An apparatus for the continuous fabrication of fiber reinforced plastic profile members or sections by impregnating fibrous mats with a settable liquid plastic reaction mixture in a continuous impregnation device. Arranged after the impregnation device is a transport- and forming device for drawing-through, shaping and hardening the impregnated fibrous mats. The continuous impregnation device embodies two superimposed contact- and guide platesarranged in spaced relationship from one another, these plates conjointly forming a continuously tapering inlet zone followed by an outlet zone and at both sides of the plates two edge guiding zones communicating with the free atmosphere, the edge guiding zones serving for the guiding of the side or marginal edges of the throughpassing fibrous mats.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: May 24, 1977
    Assignee: Contraves AG
    Inventor: Rudolf Heller