Devices having a fixed receptable with rotating tools, some or all of these tools being rolls or balls loosely mounted on their axis or loose balls in contact with the side wall or the bottom of the receptacle

Patents Grantslast 30 patents

  • Information Patent Grant

    Molding sand cooler

    • Patent number 10,124,399
    • Issue date Nov 13, 2018
    • Maschinenfabrik Gustav Eirich GmbH & Co. KG
    • Andreas Seiler
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    3456906

    • Patent number 3,456,906
    • Issue date Jul 22, 1969
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    3339899

    • Patent number 3,339,899
    • Issue date Sep 5, 1967
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    3334822

    • Patent number 3,334,822
    • Issue date Aug 8, 1967
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    3304588

    • Patent number 3,304,588
    • Issue date Feb 21, 1967
    • B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents