TREA

Making flat springs

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Industry

  • CPC
  • B21F35/04
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21FWORKING OR PROCESSING OF METAL WIRE B21F35/00Making springs from wire

Current Industry

B21F35/04Making flat springs
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Wire forming apparatus for electric machine winding
    • Patent number 11,456,652
    • Issue date Sep 27, 2022
    • BorgWarner Inc.
    • James Murphy
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire forming apparatus for electric machine winding
    • Patent number 10,958,142
    • Issue date Mar 23, 2021
    • BorgWarner Inc.
    • James Paul Murphy
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • 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

    Feedback-based system for bending wire and forming springs
    • Patent number 10,239,111
    • Issue date Mar 26, 2019
    • L&P Property Management Company
    • Kelly M. Knewtson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Wire forming apparatus for electric machine winding
    • Patent number 10,038,358
    • Issue date Jul 31, 2018
    • BorgWarner Inc.
    • James Paul Murphy
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Sinuous spring for a furniture item
    • Patent number 9,687,905
    • Issue date Jun 27, 2017
    • L&P Property Management Company
    • Kelly M Knewtson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Ring-shaped spring and method for manufacturing same
    • Patent number 9,593,731
    • Issue date Mar 14, 2017
    • NHK Spring Co., Ltd.
    • Noritoshi Takamura
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method and apparatus for creating stacks of nested sinuous springs
    • Patent number 7,954,349
    • Issue date Jun 7, 2011
    • L&P Property Management Company
    • Kelly M. Knewtson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Balance wheel, balance spring and other components and assemblies f...
    • Patent number 7,726,872
    • Issue date Jun 1, 2010
    • Gideon Levingston
    • 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 and apparatus for forming spring units
    • Patent number 6,622,384
    • Issue date Sep 23, 2003
    • A Harrison (Bedding) Limited
    • Peter Douglas Spinks
    • B68 - SADDLERY UPHOLSTERY
  • Information Patent Grant

    Large wire loop filters and mechanical dampers
    • Patent number 6,536,483
    • Issue date Mar 25, 2003
    • ACS Industries, Inc.
    • Steven Zettel
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Mattress innerspring structure having coaxial coil units
    • Patent number 5,803,440
    • Issue date Sep 8, 1998
    • L&P Property Management Company
    • Thomas J. Wells
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Printed springs and method of manufacture
    • Patent number 5,743,428
    • Issue date Apr 28, 1998
    • Vulcan Spring & Mfg. Co.
    • Alexander Rankin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method and apparatus for roll forming convoluted springs
    • Patent number 5,732,584
    • Issue date Mar 31, 1998
    • Livernois Research & Development Company
    • Larry Paul Prater
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Severance control for sinuous wire forming machine
    • Patent number 5,727,435
    • Issue date Mar 17, 1998
    • Frank L. Wells Company
    • Horst F. Wentzek
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing printed springs
    • Patent number 5,649,363
    • Issue date Jul 22, 1997
    • Vulcan Spring & Mfg. Co.
    • Alexander Rankin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Mattress innerspring structure having coaxial coil units
    • Patent number 5,509,642
    • Issue date Apr 23, 1996
    • L&P Property Management Company
    • Thomas J. Wells
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Resilient member nesting apparatus
    • Patent number 5,150,600
    • Issue date Sep 29, 1992
    • Frank L. Wells Company
    • Horst Wentzek
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Apparatus for making serpentiform springs
    • Patent number 4,136,718
    • Issue date Jan 30, 1979
    • Alexei K. Ignatiev
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3869900
    • Patent number 3,869,900
    • Issue date Mar 11, 1975
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3613420
    • Patent number 3,613,420
    • Issue date Oct 19, 1971
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3382896
    • Patent number 3,382,896
    • Issue date May 14, 1968
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3322166
    • Patent number 3,322,166
    • Issue date May 30, 1967
    • 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

    3180371
    • Patent number 3,180,371
    • Issue date Apr 27, 1965
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3172431
    • Patent number 3,172,431
    • Issue date Mar 9, 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

    2998045
    • Patent number 2,998,045
    • Issue date Aug 29, 1961
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents