including rolling or die forming, e.g., drawing, punching

Patents Grantslast 30 patents

  • Information Patent Grant

    Piston and cooled piston ring therefor and method of construction t...

    • Patent number 8,955,487
    • Issue date Feb 17, 2015
    • Federal-Mogul Corporation
    • Keith Hampton
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Computer-aided progressive die design system and method

    • Patent number 7,716,019
    • Issue date May 11, 2010
    • Siemens Product Lifecycle Management Software Inc.
    • Shengming Liu
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Method of mounting a metal sheet ring assembled and welded in a car...

    • Patent number 7,484,295
    • Issue date Feb 3, 2009
    • Roberto Oscar Appo
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Computer-aided progressive die design system and method

    • Patent number 7,065,478
    • Issue date Jun 20, 2006
    • UGS Corp.
    • Shengming Liu
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Method and system for forming a die frame and for transferring dies...

    • Patent number 7,023,347
    • Issue date Apr 4, 2006
    • Symbol Technologies, Inc.
    • Michael R. Arneson
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Method for producing a ring support with a sheet metal cooling chan...

    • Patent number 7,003,878
    • Issue date Feb 28, 2006
    • Mahle GmbH
    • Michael Ullrich
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Valve timing control system for internal combustion engine

    • Patent number 6,802,289
    • Issue date Oct 12, 2004
    • Hitachi Unisia Automotive, Ltd.
    • Hideyuki Miyazaka
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Pump body and method for making same

    • Patent number 6,343,916
    • Issue date Feb 5, 2002
    • Rexam Sofab
    • Jean-Louis Bougamont
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of and apparatus for producing hollow ring groove insert for...

    • Patent number 5,903,974
    • Issue date May 18, 1999
    • Hino Motors, Ltd.
    • Kenji Nakajima
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method and apparatus for making piston rings

    • Patent number 5,852,859
    • Issue date Dec 29, 1998
    • E. Grant Swick
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for making piston rings

    • Patent number 5,809,643
    • Issue date Sep 22, 1998
    • E. Grant Swick
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Piston rings

    • Patent number 5,752,705
    • Issue date May 19, 1998
    • AE Piston Products Limited
    • Robert Plant
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Manufacture of piston rings

    • Patent number 5,502,880
    • Issue date Apr 2, 1996
    • T&N Technology Limited
    • Richard J. Sharp
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Two-piece oil ring for use in internal combustion engine, steel wir...

    • Patent number 5,304,262
    • Issue date Apr 19, 1994
    • Hitachi Metals, Ltd.
    • Takao Karaoke
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method of forming a spacer used to space end to end piping

    • Patent number 5,253,507
    • Issue date Oct 19, 1993
    • G.A.L. Gage Co.
    • Goodwin A. Lycan
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Piston rings

    • Patent number 5,068,963
    • Issue date Dec 3, 1991
    • T&N plc
    • John S. Bruce
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Sealing arrangement for a piston in a compressor

    • Patent number 5,016,524
    • Issue date May 21, 1991
    • Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    • Katsunori Kawai
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for the manufacture of piston rings

    • Patent number 4,937,937
    • Issue date Jul 3, 1990
    • T&N Technology Limited
    • John R. Bruce
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Piston ring manufacturing method

    • Patent number 4,835,856
    • Issue date Jun 6, 1989
    • Sanden Corporation
    • Katsumasa Azami
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston ring and method of making the same

    • Patent number 4,799,694
    • Issue date Jan 24, 1989
    • Goetze AG
    • Bert Brauers
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston rings with a gap seal

    • Patent number 4,713,867
    • Issue date Dec 22, 1987
    • Duke Fox
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method of making a rolled metal piston ring

    • Patent number 4,085,490
    • Issue date Apr 25, 1978
    • Ramsey Corporation
    • Harold E. McCormick
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Coupled piston ring method of manufacture

    • Patent number 3,991,455
    • Issue date Nov 16, 1976
    • Alfred Bergeron
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3913199

    • Patent number 3,913,199
    • Issue date Oct 21, 1975
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3811166

    • Patent number 3,811,166
    • Issue date May 21, 1974
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3758929

    • Patent number 3,758,929
    • Issue date Sep 18, 1973
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3757413

    • Patent number 3,757,413
    • Issue date Sep 11, 1973
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3683477

    • Patent number 3,683,477
    • Issue date Aug 15, 1972
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3670383

    • Patent number 3,670,383
    • Issue date Jun 20, 1972
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3633260

    • Patent number 3,633,260
    • Issue date Jan 11, 1972
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents