Patents by Inventor German E. Knoppers

German E. Knoppers 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).

  • Tool for separating a core, a rind and flesh of a fruit, in particular a pineapple
    Patent number: 5157836
    Abstract: A tool is described for separating a core, a rind and flesh of a fruit, in particular a pineapple, including, at least, a cylindrical corer which is provided at one end with a cutting edge and at the other end with a handle or other driving member, such as a motor. In the tool there is provided, close to the cutting edge of the corer at least one flesh cutter extending radially thereon and provided with at least one cutting edge, the shape of the flesh cutter being chosen such that upon rotating of the tool, it executes a helical movement with a predetermined pitch, and in that at the end of the flesh cutter, opposite the end fixed to the corer, there is provided, at least locally, a rind cutter extending parallel to the corer and provided with at least one cutting edge. Further an auxiliary screw connected with the corer may be present to at least partially determine the pitch of the tool.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: October 27, 1992
    Assignee: Chiquita Tropical Fruit Company, B.V.
    Inventors: Antonius P. Aulbers, Bernard W. Been, Paul I. d'Hond, German E. Knoppers
  • Tool for separating the core, rind and flesh of a fruit
    Patent number: D355339
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: February 14, 1995
    Assignee: Vacu-Products B.V.
    Inventors: Antonius P. Aulbers, Bernard W. Been, Paul I. d'Hond, German E. Knoppers