TREA

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Industry

  • CPC
  • B21F3/08
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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

B21F3/08to flat spiral
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing a flat spiral spring, and bending device for p...
    • Patent number 10,661,330
    • Issue date May 26, 2020
    • Adolf Schnorr GmbH + Co. KG
    • Knut Naue
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for press-rolling a timepiece mainspring
    • Patent number 10,456,825
    • Issue date Oct 29, 2019
    • Nivarox-Far S.A.
    • Jonas Vannod
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Spiral spring manufacturing method
    • Patent number 9,782,819
    • Issue date Oct 10, 2017
    • Suncall Corporation
    • Ryuji Kishihara
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire feeder driving mechanism for spring manufacturing machine
    • Patent number 7,134,305
    • Issue date Nov 14, 2006
    • David Wu
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing flat wire coil springs to improve fatigue l...
    • Patent number 7,055,244
    • Issue date Jun 6, 2006
    • Anand Waman Bhagwat
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Method of manufacturing a gradient magnetic field coil assembly of...
    • Patent number 5,409,558
    • Issue date Apr 25, 1995
    • Kabushiki Kaisha Toshiba
    • Ryoichi Takahasi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Driven mandrel and method
    • Patent number 4,212,179
    • Issue date Jul 15, 1980
    • The Gates Rubber Company
    • Tristan D. Juergens
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    High-production method and apparatus for making spiral convolution...
    • Patent number 4,184,350
    • Issue date Jan 22, 1980
    • Sun Chemical Corporation
    • Laurence G. Horwitt
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and apparatus for making elongated flat wire coils
    • Patent number 4,044,583
    • Issue date Aug 30, 1977
    • Wire Conveyor Belts, Inc.
    • C. Mills Kinney
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3788631
    • Patent number 3,788,631
    • Issue date Jan 29, 1974
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3608349
    • Patent number 3,608,349
    • Issue date Sep 28, 1971
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3187416
    • Patent number 3,187,416
    • Issue date Jun 8, 1965
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3145759
    • Patent number 3,145,759
    • Issue date Aug 25, 1964
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3137325
    • Patent number 3,137,325
    • Issue date Jun 16, 1964
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2871910
    • Patent number 2,871,910
    • Issue date Feb 3, 1959
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2801669
    • Patent number 2,801,669
    • Issue date Aug 6, 1957
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2774407
    • Patent number 2,774,407
    • Issue date Dec 18, 1956
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2609192
    • Patent number 2,609,192
    • Issue date Sep 2, 1952
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2548735
    • Patent number 2,548,735
    • Issue date Apr 10, 1951
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2388537
    • Patent number 2,388,537
    • Issue date Nov 6, 1945
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2230818
    • Patent number 2,230,818
    • Issue date Feb 4, 1941
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2157050
    • Patent number 2,157,050
    • Issue date May 2, 1939
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2088094
    • Patent number 2,088,094
    • Issue date Jul 27, 1937
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1730199
    • Patent number 1,730,199
    • Issue date Oct 1, 1929
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1483985
    • Patent number 1,483,985
    • Issue date Feb 19, 1924
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1446343
    • Patent number 1,446,343
    • Issue date Feb 20, 1923
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1421566
    • Patent number 1,421,566
    • Issue date Jul 4, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents