TREA

corrugated in the axial direction

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  • CPC
  • F16J9/068
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16JPISTONS CYLINDERS SEALINGS F16J9/00Piston-rings

Current Industry

F16J9/068corrugated in the axial direction
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Oil control ring
    • Patent number 12,163,592
    • Issue date Dec 10, 2024
    • Federal-Mogul Burscheid GmbH
    • Thomas Bastuck
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spacer spring for a three-part oil scraper ring and three-part oil...
    • Patent number 11,725,730
    • Issue date Aug 15, 2023
    • Federal-Mogul Burscheid GmbH
    • Laszlo Pelsoeczy
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • 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

    Oil control ring and spacer expander
    • Patent number 11,333,245
    • Issue date May 17, 2022
    • Hiroshi Shimizu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil scraper ring spring for an oil scraper ring and oil scraper ring
    • Patent number 11,143,301
    • Issue date Oct 12, 2021
    • Scherdel INNOTEC Forschungs-und Entwicklungs-GmbH
    • Peter Mielke
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multiple-piece oil stripping piston ring with reduced friction
    • Patent number 11,092,238
    • Issue date Aug 17, 2021
    • Federal-Mogul Burscheid GmbH
    • Stephan Machliner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring
    • Patent number 10,724,636
    • Issue date Jul 28, 2020
    • Nippon Piston Ring Co., Ltd.
    • Masataka Kawasaki
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Segment, combination oil ring, and manufacturing method for a segment
    • Patent number 10,626,991
    • Issue date Apr 21, 2020
    • TPR CO., LTD.
    • Atsushi Nakazawa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Combination oil ring
    • Patent number 10,571,024
    • Issue date Feb 25, 2020
    • TPR CO., LTD.
    • Kentaro Kawano
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil control ring
    • Patent number 10,557,551
    • Issue date Feb 11, 2020
    • Kabushiki Kaisha Riken
    • Hiroshi Shimizu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Side rail
    • Patent number 10,428,943
    • Issue date Oct 1, 2019
    • KABUSHIKI KAISHA RIKEN
    • Yuichiro Takezawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Oil control ring assembly
    • Patent number 10,253,882
    • Issue date Apr 9, 2019
    • Mahle International GmbH
    • Steven J. Sytsma
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil control ring
    • Patent number 10,247,306
    • Issue date Apr 2, 2019
    • Kabushiki Kaisha Riken
    • Hiroshi Shimizu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combination oil ring
    • Patent number 10,072,755
    • Issue date Sep 11, 2018
    • TPR CO., LTD.
    • Noriaki Ayuzawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing member of door for car
    • Patent number 9,931,922
    • Issue date Apr 3, 2018
    • Nishikawa Rubber Co., Ltd.
    • Masahiro Morioka
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Combination oil ring
    • Patent number 9,845,873
    • Issue date Dec 19, 2017
    • TPR CO., LTD.
    • Noriaki Ayuzawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combination oil ring
    • Patent number 9,784,369
    • Issue date Oct 10, 2017
    • TPR Co., Ltd.
    • Hironori Fujita
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Combination oil ring
    • Patent number 9,726,286
    • Issue date Aug 8, 2017
    • TPR CO., LTD.
    • Noriaki Ayuzawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil control ring
    • Patent number 9,657,838
    • Issue date May 23, 2017
    • Kabushiki Kaisha Riken
    • Yoshihito Ooya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil control ring
    • Patent number 9,618,115
    • Issue date Apr 11, 2017
    • Kabushiki Kaisha Riken
    • Hiroyuki Yabune
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring
    • Patent number 9,528,606
    • Issue date Dec 27, 2016
    • Nippon Piston Ring Co., Ltd.
    • Hideshi Hitosugi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combination oil ring
    • Patent number 9,458,933
    • Issue date Oct 4, 2016
    • TPR CO., LTD.
    • Noriaki Ayuzawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil control ring
    • Patent number 9,410,625
    • Issue date Aug 9, 2016
    • Kabushiki Kaisha Riken
    • Masahiro Nakazawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil control ring
    • Patent number 9,303,765
    • Issue date Apr 5, 2016
    • Kabushiki Kaisha Riken
    • Akira Kunimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil-control ring for an internal combustion engine
    • Patent number 8,104,771
    • Issue date Jan 31, 2012
    • Mahle International GmbH
    • André Ferrarese
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Three-piece oil ring and combination of the three-piece oil ring an...
    • Patent number 7,854,191
    • Issue date Dec 21, 2010
    • Nippon Piston Ring Co., Ltd.
    • Tomotaka Kariya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil ring, manufacturing method thereof, and piston structure using...
    • Patent number 7,797,829
    • Issue date Sep 21, 2010
    • Kabushiki Kaisha Riken
    • Masaki Yamada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Variable tension ring mechanism
    • Patent number 7,461,583
    • Issue date Dec 9, 2008
    • Mahle Engine Components USA, Inc.
    • Joseph C. Hamelink
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spacer expander
    • Patent number 7,243,596
    • Issue date Jul 17, 2007
    • Kabushiki Kaisha Rikon
    • Miyuki Usui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Side rail and combined oil control ring incorporated with the side...
    • Patent number 7,036,823
    • Issue date May 2, 2006
    • Riken Corporation
    • Katsumi Takiguchi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    OIL CONTROL RING
    • Publication number 20220412459
    • Publication date Dec 29, 2022
    • FEDERAL-MOGUL BURSCHEID GMBH
    • Thomas BASTUCK
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPACER SPRING FOR A THREE-PART OIL SCRAPER RING AND THREE-PART OIL...
    • Publication number 20210003217
    • Publication date Jan 7, 2021
    • FEDERAL-MOGUL BURSCHEID GMBH
    • LASZLO PELSOECZY
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL CONTROL RING
    • Publication number 20200124174
    • Publication date Apr 23, 2020
    • Kabushiki Kaisha Riken
    • Kazuya MOCHIZUKI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINATION OIL RING
    • Publication number 20190360585
    • Publication date Nov 28, 2019
    • TPR CO., LTD.
    • Kentaro KAWANO
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SEGMENT, COMBINATION OIL RING, AND MANUFACTURING METHOD FOR A SEGMENT
    • Publication number 20190360584
    • Publication date Nov 28, 2019
    • TPR CO., LTD.
    • Atsushi NAKAZAWA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    MULTIPLE-PIECE OIL STRIPPING PISTON RING WITH REDUCED FRICTION
    • Publication number 20190113139
    • Publication date Apr 18, 2019
    • Stephan MACHLINER
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL CONTROL RING
    • Publication number 20180112775
    • Publication date Apr 26, 2018
    • Kabushiki Kaisha Riken
    • Hiroshi SHIMIZU
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL CONTROL RING
    • Publication number 20180094726
    • Publication date Apr 5, 2018
    • Kabushiki Kaisha Riken
    • Hiroshi SHIMIZU
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL CONTROL RING
    • Publication number 20150145218
    • Publication date May 28, 2015
    • Kabushiki Kaisha Riken
    • Yoshihito Ooya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL CONTROL RING
    • Publication number 20140265149
    • Publication date Sep 18, 2014
    • Kabushiki Kaisha Riken
    • Masahiro Nakazawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL SCRAPER RING FOR A PISTON OF AN INTERNAL COMBUSTION ENGINE
    • Publication number 20140251254
    • Publication date Sep 11, 2014
    • MAHLE International GmbH
    • Holger Franz
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    COMBINATION OIL RING
    • Publication number 20140246834
    • Publication date Sep 4, 2014
    • TPR CO., LTD.
    • Noriaki Ayuzawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL RING
    • Publication number 20140062030
    • Publication date Mar 6, 2014
    • Nippon Piston Ring Co., Ltd.
    • Hideshi HITOSUGI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    THREE-PIECE OIL-CONTROL RING FOR AN INTERNAL COMBUSTION ENGINE
    • Publication number 20140035235
    • Publication date Feb 6, 2014
    • MAHLE International GmbH
    • Andre Ferrarese
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINATION OIL RING
    • Publication number 20110221141
    • Publication date Sep 15, 2011
    • TEIKOKU PISTON RING CO., LTD.
    • Noriaki Ayuzawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Piston ring
    • Publication number 20110204575
    • Publication date Aug 25, 2011
    • Mahle Konig Kommanditgesellschaft GmbH & Co.
    • Karlheinz Langner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Oil-control ring for an internal combustion engine
    • Publication number 20090250880
    • Publication date Oct 8, 2009
    • Andre Ferrarese
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    THREE-PIECE OIL RING AND COMBINATION OF THE THREE-PIECE OIL RING AN...
    • Publication number 20090013866
    • Publication date Jan 15, 2009
    • NIPPON PISTON RING CO., LTD.
    • Tomotaka Kariya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Variable Tension Ring Mechanism
    • Publication number 20080017025
    • Publication date Jan 24, 2008
    • Joseph C. Hamelink
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Spacer expander
    • Publication number 20060169135
    • Publication date Aug 3, 2006
    • Kabushiki Kaisha Riken
    • Miyuki Usui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Oil ring, manufacturing method thereof, and piston structure using...
    • Publication number 20060081126
    • Publication date Apr 20, 2006
    • Masaki Yamada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Oil-control ring of piston
    • Publication number 20060049583
    • Publication date Mar 9, 2006
    • C.T.I. Traffic Industries Co., Ltd.
    • Wan-Chieh Lu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Side rail used for combination oil ring and method of nitriding the...
    • Publication number 20040262847
    • Publication date Dec 30, 2004
    • Shigeo Inoue
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Side rail and combined oil control ring incorporated with the side...
    • Publication number 20040061291
    • Publication date Apr 1, 2004
    • Katsumi Takiguchi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...