Patents by Inventor Karl E. Zimmer

Karl E. Zimmer 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: 4248337
    Abstract: An endless scraper chain carried by a bridge is provided with spaced scraper flights. The scraper chain is driven so as to move its lower course toward one end to thereby move bulk material to a roller bed extending under that one end. The roller bed is connected to the bridge to move therewith. An endless conveyor belt is supported on the roller bed and extends transversely of the bridge and has an upper course which extends under the one end of the scraper chain to receive the bulk material from the scraper chain. A conveyor type weigher is adapted to indicate the weight of bulk material lying on the upper course of the conveyor belt in a predetermined area thereof. Mutually opposite confining walls are disposed on opposite sides of said lower course of said scraper chain, and are mounted to the bridge to permit vertical movement of said confining walls.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: February 3, 1981
    Assignee: Pohlig-Heckel-Bleichert Vereinigte Maschinenfabriken
    Inventor: Karl E. Zimmer
  • Patent number: 4234077
    Abstract: Apparatus for removing bulk material from dumps, mixed-bed installations or the like. The apparatus includes two horizontally spaced apart, parallel endless roller chains which have side bars and form substantially horizontal upper and lower courses. The chains are driven so that the lower courses move in a predetermined horizontal direction. A plurality of carrying elements are disposed between the chains, each carrying element comprises a frame secured to both chains at respective side bars thereof and a bottom secured to the lower courses to protrude from the frame substantially horizontally opposite to the predetermined horizontal direction and close to the bottom of the next adjacent carrying element. The frame and bottoms of the carrying elements define spaces which are open on both sides.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: November 18, 1980
    Assignee: Pohlig-Heckel-Bleichert Vereinigte Maschinenfabriken Aktiengesellschaft
    Inventors: Heinz Berthold, Karl E. Zimmer