TREA

Rolling tubes without additional rollers arranged inside the tubes

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Industry

  • CPC
  • B21B19/16
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21BROLLING OF METAL B21B19/00Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work

Current Industry

B21B19/16Rolling tubes without additional rollers arranged inside the tubes
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for manufacturing tubes by rolling
    • Patent number 6,920,773
    • Issue date Jul 26, 2005
    • Outokumpu Oyj
    • Matti Leiponen
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method and apparatus for manufacturing tubes
    • Patent number 6,892,559
    • Issue date May 17, 2005
    • Outokumpu Oyj
    • Matti Leiponen
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Machine for simultaneously forming threads or fins on multiple cyli...
    • Patent number 5,916,318
    • Issue date Jun 29, 1999
    • Ray C. Anderson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Process for the rolling of hallow ingots on a assel rolling mill
    • Patent number 5,642,638
    • Issue date Jul 1, 1997
    • Mannesmann Aktiengesellschaft
    • Jurgen Pietsch
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Pre-reduction equipment and method
    • Patent number 5,440,911
    • Issue date Aug 15, 1995
    • Mannesmann Aktiengesellschaft
    • Manfred Peglau
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and apparatus to reduce the outer diameter and wall thicknes...
    • Patent number 5,125,251
    • Issue date Jun 30, 1992
    • Mannesmann AG
    • Gustav-Adolf Pettersson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3517534
    • Patent number 3,517,534
    • Issue date Jun 30, 1970
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3363442
    • Patent number 3,363,442
    • Issue date Jan 16, 1968
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2103574
    • Patent number 2,103,574
    • Issue date Dec 28, 1937
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1596751
    • Patent number 1,596,751
    • Issue date Aug 17, 1926
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents