TREA

with means for preventing rotation

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  • CPC
  • B21D53/22
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL B21D53/00Making other particular articles

Current Industry

B21D53/22with means for preventing rotation
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Self-controllable load spring washer
    • Patent number 12,274,862
    • Issue date Apr 15, 2025
    • Becton, Dickinson and Company
    • Nestor Rodriguez San Juan
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wedge locking washer with increased corrosion resistance and method...
    • Patent number 10,508,679
    • Issue date Dec 17, 2019
    • Nord-Lock AB
    • Mattias Andersson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and a device for the manufacturing of washers for locking an...
    • Patent number 9,636,738
    • Issue date May 2, 2017
    • Nord-Lock AB
    • Mattias Andersson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and a device for the manufacturing of washers and washer for...
    • Patent number 7,987,691
    • Issue date Aug 2, 2011
    • Nord-Lock AB
    • Mattias Andersson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for producing hexagonal washer
    • Patent number 7,621,168
    • Issue date Nov 24, 2009
    • Tech Stell Co., Ltd.
    • Chen-Mao Lin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for producing circular washer
    • Patent number 7,331,874
    • Issue date Feb 19, 2008
    • Tech Stell Co., Ltd.
    • Chen-Mao Lin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of producing semicircular washers having a projection to pre...
    • Patent number 4,310,939
    • Issue date Jan 19, 1982
    • Daido Metal Company Ltd.
    • Yoshio Iijima
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2193661
    • Patent number 2,193,661
    • Issue date Mar 12, 1940
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1989750
    • Patent number 1,989,750
    • Issue date Feb 5, 1935
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    1497288
    • Patent number 1,497,288
    • Issue date Jun 10, 1924
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents