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with extended ends formed in a special shape

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  • CPC
  • B21F3/027
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21FWORKING OR PROCESSING OF METAL WIRE B21F3/00Coiling wire into particular forms

Current Industry

B21F3/027with extended ends formed in a special shape
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Hot formed coiling machine
    • Patent number 9,744,584
    • Issue date Aug 29, 2017
    • Dae Won Kang Up Co., Ltd.
    • Chan-Gi Jung
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Bending device and spring manufacturing machine
    • Patent number 9,682,417
    • Issue date Jun 20, 2017
    • Shinko Machinery Co., Ltd.
    • Isao Kido
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire spring forming apparatus
    • Patent number 7,024,901
    • Issue date Apr 11, 2006
    • Orii & Mec Corporation
    • Sinichi Yamaguchi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Mold head device of spring forming machine
    • Patent number 6,817,220
    • Issue date Nov 16, 2004
    • Shin Chuau HWA Co., Ltd.
    • Tsun-Te Liu
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Conveyance system for interface with component production and assem...
    • Patent number 6,688,457
    • Issue date Feb 10, 2004
    • Sealy Technoly LLC
    • Thomas D. Haubert
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Device for bending an extremity of a torsional spring
    • Patent number 6,681,809
    • Issue date Jan 27, 2004
    • Canimex Inc.
    • Normand Savard
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Coil and coil head formation dies for coils with non-conventional t...
    • Patent number 6,640,836
    • Issue date Nov 4, 2003
    • Sealy Technology LLC
    • Thomas D. Haubert
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and apparatus for linear spring
    • Patent number 5,937,685
    • Issue date Aug 17, 1999
    • MEC Machinery Co., Ltd.
    • Takeji Matsuoka
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Spring manufacturing apparatus
    • Patent number 5,839,312
    • Issue date Nov 24, 1998
    • Kabushiki Kaisha Itaya Seisaku Sho
    • Ichiro Itaya
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Coil spring supporting device
    • Patent number 5,620,170
    • Issue date Apr 15, 1997
    • Kabushiki Kaisha Tokai Rika Denki Seisakusho
    • Tomoyuki Shibata
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Automatic spring formation apparatus
    • Patent number 5,452,598
    • Issue date Sep 26, 1995
    • Minyu Machinery Corp., Ltd.
    • Ming-Yih Cheng
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Apparatus for shaping wire
    • Patent number 5,363,681
    • Issue date Nov 15, 1994
    • Wafios Machinenfabrik GmbH & Co.
    • Norbert Speck
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire working tool and holder
    • Patent number 5,297,412
    • Issue date Mar 29, 1994
    • North America OMCG, Inc.
    • Luigi Maggi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Versatile automatic metal strip working machine
    • Patent number 5,203,191
    • Issue date Apr 20, 1993
    • North America OMCG, Inc.
    • Luigi Maggi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Apparatus for forming wire
    • Patent number 5,105,641
    • Issue date Apr 21, 1992
    • WAFIOS Maschinenfabrik GmbH & Co. Kommanditgesellschaft
    • Gustav Veit
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Coiled spring making apparatus
    • Patent number 5,025,648
    • Issue date Jun 25, 1991
    • MEC Machinery Co., Ltd.
    • Takeji Matsuoka
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Apparatus for forming coil springs
    • Patent number 4,893,491
    • Issue date Jan 16, 1990
    • Asahi-Seiki Manufacturing Co., Ltd.
    • Yozo Ohdai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Clutch apparatus for spring making machine
    • Patent number 4,696,175
    • Issue date Sep 29, 1987
    • Eugene M. Skupien
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire working machine
    • Patent number 4,607,513
    • Issue date Aug 26, 1986
    • Sleeper & Hartley Corp.
    • Frank S. Russell
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire forming machine
    • Patent number 4,587,821
    • Issue date May 13, 1986
    • Willard D. Sykes
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and apparatus for producing wound coils
    • Patent number 4,586,358
    • Issue date May 6, 1986
    • Philip Mangiapane
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire coiling machine
    • Patent number 4,416,135
    • Issue date Nov 22, 1983
    • Sleeper & Hartley Corp.
    • Frank S. Russell
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Machines for forming coiled springs
    • Patent number 4,296,621
    • Issue date Oct 27, 1981
    • Asahi-Seiki Manufacturing Co., Ltd.
    • Yozo Ohdai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Coil spring manufacturing machine
    • Patent number 4,289,004
    • Issue date Sep 15, 1981
    • Kabushiki Kaisha Itaya Seisaku Sho
    • Reijiro Itaya
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Coil actuating apparatus in a coil spring making machine
    • Patent number 4,064,732
    • Issue date Dec 27, 1977
    • Takeji Matsuoka
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Universal line tie and method of making same
    • Patent number 4,015,073
    • Issue date Mar 29, 1977
    • A. B. Chance Company
    • Gary R. Dickerson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire coiling machine
    • Patent number 4,008,594
    • Issue date Feb 22, 1977
    • Hartwell Corporation
    • George Noyce
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Spring forming machine
    • Patent number 3,983,732
    • Issue date Oct 5, 1976
    • Hartwell Corporation
    • George Noyce
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3847003
    • Patent number 3,847,003
    • Issue date Nov 12, 1974
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3677054
    • Patent number 3,677,054
    • Issue date Jul 18, 1972
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents