with a "C"-shaped cross section along the entire circumference

Industry

  • CPC
  • F16J9/069
This industry / category may be too specific. Please go to a parent level for more data

Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-piece oil scraper ring with reduced friction

    • Patent number 11,713,811
    • Issue date Aug 1, 2023
    • Federal-Mogul Burscheid GmbH
    • Stephan Machliner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring for combustion engine

    • Patent number 10,670,146
    • Issue date Jun 2, 2020
    • KABUSHIKI KAISHA RIKEN
    • Kazunori Natabe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring having wear coating consisting of Cr.sub.2 N or a mixtu...

    • Patent number 5,820,131
    • Issue date Oct 13, 1998
    • Teikoku Piston Ring Co., Ltd.
    • Shoji Tanaka
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Seal device for piston rod

    • Patent number 5,788,246
    • Issue date Aug 4, 1998
    • Kabushiki Kaisha Riken
    • Morio Kuribayashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combined oil ring with spacer/expander having Cr.sub.2 N coating th...

    • Patent number 5,718,437
    • Issue date Feb 17, 1998
    • Teikoku Piston Ring Co., Ltd.
    • Shoji Tanaka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of manufacturing a side rail of a combined oil ring

    • Patent number 5,469,616
    • Issue date Nov 28, 1995
    • Teikoku Piston Ring Co., Ltd.
    • Satomichi Miyazaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring

    • Patent number 5,308,089
    • Issue date May 3, 1994
    • Teikoku Piston Ring Co., Ltd.
    • Masao Ishida
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil-ring including two rail rings and an expander-spacer ring which...

    • Patent number 4,548,416
    • Issue date Oct 22, 1985
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spacer-expander for pistons

    • Patent number 4,468,040
    • Issue date Aug 28, 1984
    • AE PLC
    • Robert Plant
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Three-piece oil control ring

    • Patent number 4,194,747
    • Issue date Mar 25, 1980
    • Muskegon Piston Ring Company
    • Kenneth J. Nisper
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multi-part piston oil ring

    • Patent number 4,183,544
    • Issue date Jan 15, 1980
    • Goetzewerke, Friedrich Goetze AG
    • Martin Morsbach
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tangential expander for oil control piston rings

    • Patent number 4,175,758
    • Issue date Nov 27, 1979
    • Anatoly V. Adamovich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of manufacturing tangential expanders for oil control piston...

    • Patent number 4,173,878
    • Issue date Nov 13, 1979
    • Rusaam S. Nemets
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Axially and radially clamping spreader ring for an oil scraping pis...

    • Patent number 4,145,060
    • Issue date Mar 20, 1979
    • Goetze AG
    • Friedhelm Stecher
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Circumferentially resilient piston ring

    • Patent number 4,139,205
    • Issue date Feb 13, 1979
    • Goetze AG
    • Gerhard Duck
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring

    • Patent number 4,130,288
    • Issue date Dec 19, 1978
    • Questor Corporation
    • Kenneth J. Nisper
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil ring design

    • Patent number 4,053,165
    • Issue date Oct 11, 1977
    • Hepworth & Grandage Limited
    • Edward Douglas Hartley
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3901131

    • Patent number 3,901,131
    • Issue date Aug 26, 1975
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3811692

    • Patent number 3,811,692
    • Issue date May 21, 1974
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3741569

    • Patent number 3,741,569
    • Issue date Jun 26, 1973
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3697090

    • Patent number 3,697,090
    • Issue date Oct 10, 1972
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3656767

    • Patent number 3,656,767
    • Issue date Apr 18, 1972
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3628800

    • Patent number 3,628,800
    • Issue date Dec 21, 1971
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3606355

    • Patent number 3,606,355
    • Issue date Sep 20, 1971
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3601415

    • Patent number 3,601,415
    • Issue date Aug 24, 1971
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3522949

    • Patent number 3,522,949
    • Issue date Aug 4, 1970
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3485504

    • Patent number 3,485,504
    • Issue date Dec 23, 1969
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3477732

    • Patent number 3,477,732
    • Issue date Nov 11, 1969
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3447811

    • Patent number 3,447,811
    • Issue date Jun 3, 1969
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3341209

    • Patent number 3,341,209
    • Issue date Sep 12, 1967
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents