TREA

Coiled spring along the entire circonference

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  • CPC
  • F16J9/062
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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

F16J9/062Coiled spring along the entire circonference
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Oil control ring
    • Patent number 12,173,799
    • Issue date Dec 24, 2024
    • TPR CO., LTD.
    • Akira Hikone
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Play-free oil scraper ring
    • Patent number 11,199,261
    • Issue date Dec 14, 2021
    • Federal-Mogul Burscheid GmbH
    • Nigel Gray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Multi-piece oil ring
    • Patent number 10,330,198
    • Issue date Jun 25, 2019
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil ring
    • Patent number 10,197,160
    • Issue date Feb 5, 2019
    • KABUSHIKI KAISHA RIKEN
    • Daisuke Nakamura
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring for an internal combustion engine
    • Patent number 10,125,869
    • Issue date Nov 13, 2018
    • Tenneco Inc.
    • Blair Matthew Jenness
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston, oil control ring therefor and method of construction thereof
    • Patent number 10,125,719
    • Issue date Nov 13, 2018
    • Tenneco Inc.
    • Miguel Azevedo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring configured to reduce friction
    • Patent number 10,077,838
    • Issue date Sep 18, 2018
    • Ford Global Technologies, LLC
    • Ian Graham Pegg
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multi-piece oil ring
    • Patent number 10,030,772
    • Issue date Jul 24, 2018
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seal device
    • Patent number 9,903,474
    • Issue date Feb 27, 2018
    • Kabushiki Kaisha Riken
    • Nagato Yako
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil scraper ring
    • Patent number 9,810,175
    • Issue date Nov 7, 2017
    • Burckhardt Compression AG
    • Norbert Feistel
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring for an internal combustion engine
    • Patent number 9,316,312
    • Issue date Apr 19, 2016
    • Federal-Mogul Corporation
    • Blair Matthew Jenness
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil scraper ring
    • Patent number 9,234,479
    • Issue date Jan 12, 2016
    • Burckhardt Compression AG
    • Norbert Feistel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multi-part piston ring
    • Patent number 9,217,507
    • Issue date Dec 22, 2015
    • Federal-Mogul Burscheid GmbH
    • Richard Mittler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil control ring with ferrous body less than 2.0 millimeters high f...
    • Patent number 9,163,725
    • Issue date Oct 20, 2015
    • MAHLE Metal Leve S/A
    • Rémi Daniel Rabuté
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston with oil cooling passage and method of construction thereof
    • Patent number 9,062,768
    • Issue date Jun 23, 2015
    • Federal-Mogul Corporation
    • Miguel Azevedo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Structure of piston ring
    • Patent number 9,057,442
    • Issue date Jun 16, 2015
    • C.T.I. TRAFFIC INDUSTRIES CO., LTD.
    • Wan-Jie Lu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Internal combustion engine oil ring
    • Patent number 8,820,750
    • Issue date Sep 2, 2014
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Seal assembly for an internal combustion engine
    • Patent number 8,701,620
    • Issue date Apr 22, 2014
    • EcoMotors, International
    • Peter Hofbauer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring
    • Patent number 8,616,556
    • Issue date Dec 31, 2013
    • Teikoku Piston Ring Co., Ltd.
    • Masaki Hayashi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multi-rail piston ring
    • Patent number 8,403,334
    • Issue date Mar 26, 2013
    • Mahle Engine Components USA, Inc.
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil wiper ring
    • Patent number 8,371,585
    • Issue date Feb 12, 2013
    • Federal-Mogul Burscheid GmbH
    • Peter-Klaus Esser
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Wire material for coil expander and coil expander
    • Patent number 7,954,822
    • Issue date Jun 7, 2011
    • Nippon Piston Ring Co., Ltd.
    • Nobuyuki Matsushima
    • 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

    Oil ring for internal combustion engine
    • Patent number 7,510,196
    • Issue date Mar 31, 2009
    • Nippon Piston Ring Co., Ltd.
    • Keishi Nanno
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil ring
    • Patent number 7,354,045
    • Issue date Apr 8, 2008
    • Toyota Jidosha Kabushiki Kaisha
    • Tomoaki Abe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil control ring for pistons of internal combustion engines
    • Patent number 7,306,234
    • Issue date Dec 11, 2007
    • Mahle GmbH
    • Holger Franz
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil control ring
    • Patent number 7,306,233
    • Issue date Dec 11, 2007
    • Kabushiki Kaisha Riken
    • Miyuki Usui
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil ring for an internal combustion engine
    • Patent number 7,252,292
    • Issue date Aug 7, 2007
    • Mahle Components de Motores do Brasil LTDA
    • Renato Panelli
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring
    • Patent number 7,077,402
    • Issue date Jul 18, 2006
    • Teikoku Piston Ring Co., Ltd.
    • Masakazu Katumaru
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring
    • Patent number 6,860,485
    • Issue date Mar 1, 2005
    • Nippon Piston Ring Co., Ltd.
    • Tetsuo Masuyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    OIL CONTROL RING
    • Publication number 20240141993
    • Publication date May 2, 2024
    • TPR CO., LTD.
    • Akira HIKONE
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL RING FOR INTERNAL COMBUSTION ENGINE AND PISTON ASSEMBLY INCLUDI...
    • Publication number 20210381596
    • Publication date Dec 9, 2021
    • SAMYOUNG MACHINERY CO.,LTD.
    • GEUM TAI HAN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PLAY-FREE OIL SCRAPER RING
    • Publication number 20200378498
    • Publication date Dec 3, 2020
    • FEDERAL-MOGUL BURSCHEID GMBH
    • NIGEL GRAY
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MULTI-PIECE OIL RING
    • Publication number 20180363778
    • Publication date Dec 20, 2018
    • Nippon Piston Ring Co., Ltd.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    A Piston Engine with a Transfer Valve Assembly
    • Publication number 20180003091
    • Publication date Jan 4, 2018
    • LIBERTINE FPE LTD.
    • Samuel Edward Cockerill
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Oil Ring for a Piston Assembly
    • Publication number 20170299056
    • Publication date Oct 19, 2017
    • Federal-Mogul Corporation
    • MIGUEL AZEVEDO
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Structure of Piston Ring
    • Publication number 20140339778
    • Publication date Nov 20, 2014
    • Wan-Jie Lu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL SCRAPER RING
    • Publication number 20140165826
    • Publication date Jun 19, 2014
    • FEDERAL-MOGUL BURSCHEID GMBH
    • Dirk Baerenreuter
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON WITH OIL COOLING PASSAGE AND METHOD OF CONSTRUCTION THEREOF
    • Publication number 20140020648
    • Publication date Jan 23, 2014
    • Federal-Mogul Corporation
    • Miguel Azevedo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Structure of Titanium-alloy Piston Ring
    • Publication number 20130334774
    • Publication date Dec 19, 2013
    • TAI MAO INDUSTRIAL CORP.
    • Wan-Jie Lu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Structure of Piston Ring
    • Publication number 20130334773
    • Publication date Dec 19, 2013
    • TAI MAO INDUSTRIAL CORP.
    • Wan-Jie Lu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL SCRAPER RING
    • Publication number 20130307220
    • Publication date Nov 21, 2013
    • Burckhardt Compression AG
    • Norbert Feistel
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    OIL CONTROL RING
    • Publication number 20130291824
    • Publication date Nov 7, 2013
    • Norbert Feistel
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING FOR AN INTERNAL COMBUSTION ENGINE
    • Publication number 20130213219
    • Publication date Aug 22, 2013
    • Federal-Mogul Corporation
    • Blair Matthew Jenness
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING FOR AN INTERNAL COMBUSTION ENGINE
    • Publication number 20130213220
    • Publication date Aug 22, 2013
    • Federal-Mogul Corporation
    • Blair Matthew Jenness
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    INTERNAL COMBUSTION ENGINE OIL RING
    • Publication number 20130181410
    • Publication date Jul 18, 2013
    • NIPPON PISTON RING CO., LTD.
    • Atsushi Chiba
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    OIL CONTROL RING OF FERROUS BODY FOR INTERNAL COMBUSTION ENGINES
    • Publication number 20130167801
    • Publication date Jul 4, 2013
    • MAHLE METAL LEVE S.A.
    • Rémi Daniel Rabuté
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    INTERNAL COMBUSTION ENGINE OIL RING
    • Publication number 20130049305
    • Publication date Feb 28, 2013
    • NIPPON PISTON RING CO., LTD.
    • Mamoru Miyamoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Seal Assembly for an Internal Combustion Engine
    • Publication number 20130008406
    • Publication date Jan 10, 2013
    • EcoMotors International, Inc.
    • Peter Hofbauer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MULTI-PART PISTON RING
    • Publication number 20120306159
    • Publication date Dec 6, 2012
    • Richard Mittler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MULTI-PIECE OIL RING
    • Publication number 20120261886
    • Publication date Oct 18, 2012
    • NIPPON PISTON RING CO., LTD.
    • Atsushi Chiba
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL CONTROL RING WITH FERROUS BODY LESS THAN 2.0 MILLIMETERS HIGH F...
    • Publication number 20120112418
    • Publication date May 10, 2012
    • MAHLE METAL LEVE S/A
    • Remi Daniel Rabute
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL RING MECHANISM OF A PISTON
    • Publication number 20120061920
    • Publication date Mar 15, 2012
    • NIPPON PISTON RING CO., LTD.
    • Hiroyuki Nishiura
    • 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 WIPER RING
    • Publication number 20100176557
    • Publication date Jul 15, 2010
    • Esser Peter-Klaus
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MULTI-RAIL PISTON RING
    • Publication number 20100171273
    • Publication date Jul 8, 2010
    • John C. Lahrman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMBINED OIL RING
    • Publication number 20090273142
    • Publication date Nov 5, 2009
    • Teikoku Piston Ring Co., Ltd.
    • Masaki HAYASHI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Wire material for coil expander and coil expander
    • Publication number 20090243225
    • Publication date Oct 1, 2009
    • Nobuyuki Matsushima
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Oil Ring for Internal Combustion Engine
    • Publication number 20080169612
    • Publication date Jul 17, 2008
    • Keishi Nanno
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Combined oil ring
    • Publication number 20080122185
    • Publication date May 29, 2008
    • Teikoku Piston Ring Co., Ltd.
    • Isao Katou
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...