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Bernard Dumas

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  • Montbrison, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for modifying the distance between the rollers of a leveling...
    • Patent number 9,162,270
    • Issue date Oct 20, 2015
    • Siemens Vai Metals Technologies SAS
    • Jean-Pierre Chazal
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Leveling machine with multiple rollers
    • Patent number 9,126,250
    • Issue date Sep 8, 2015
    • Siemens Vai Metals Technologies SAS
    • Jean-Pierre Chazal
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Device for turning over a flattening element and flattening element...
    • Patent number 8,677,798
    • Issue date Mar 25, 2014
    • Siemens Vai Metals Technologies SAS
    • Jean-Pierre Chazal
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Rolling mill installation
    • Patent number 5,806,360
    • Issue date Sep 15, 1998
    • Clecim
    • Bernard Dumas
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Roll cleaning device
    • Patent number 5,618,224
    • Issue date Apr 8, 1997
    • Clecim
    • Bernard Dumas
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents