Patents by Inventor Jochen Zuhlke

Jochen Zuhlke 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: 4339972
    Abstract: A method and apparatus for the accurate volumetric subdivision of conveyed bar-shaped material such as bar steel or billets, using measurements of the bar's cross-sectional area.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: July 20, 1982
    Assignee: Rolf Peddinghaus
    Inventors: Joachim Wepner, Kurt Wengenroth, Jochen Zuhlke
  • Patent number: 4238718
    Abstract: A process and apparatus for producing sections of accurate weight or volume which includes the providing of a computer which receives various signals including the length, weight and density of a sheared off section and in response to such conditions varies the position of a length stop to insure that sections of accurate weight and volume are continuously obtained. The length stop mechanism is regulated by controlling the movement of a plurality of clamping devices which operate in conjunction with the axial movement of the material to be severed. The clamping devices are hydraulically operated.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: December 9, 1980
    Assignee: Rolf Peddinghaus
    Inventors: Joachim Wepner, Jochen Zuhlke
  • Patent number: 4171735
    Abstract: A safety device for a press and the like machinery includes a safety deflector surrounding a tool carriage reciprocable along a path with respect to a fixed frame. The safety device also includes a limit switch associated with a door that defines part of the safety deflector. First and second contactless switches are located adjacent a work supporting surface and respectively sense the position of opposite surfaces of the workpiece to insure that the workpiece is within limits of the work supporting surface and the safety deflector. The switches are in a circuit leading to a machine clutch for the tool carriage to prevent operation when the door is open or either surface of the workpiece is outside prescribed limits of the deflector and the support surface.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: October 23, 1979
    Assignee: Rolf Peddinghaus
    Inventors: Jochen Zuhlke, Hans J. Mesek