TREA

Piston-rings

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Industry

  • CPC
  • F16J9/00
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16JPISTONS CYLINDERS SEALINGS

Current Industry

F16J9/00Piston-rings

Sub Industries

F16J9/02L-section rings F16J9/04Helical rings F16J9/06using separate springs or elastic elements expanding the rings Springs therefor; Expansion by wedging F16J9/061using metallic coiled or blade springs F16J9/062Coiled spring along the entire circonference F16J9/063Strip or wire along the entire circonference F16J9/064Rings with a flat annular side rail F16J9/065Spring expander with massive cross-section F16J9/066Spring expander from sheet metal F16J9/067corrugated in the radial direction F16J9/068corrugated in the axial direction F16J9/069with a "C"-shaped cross section along the entire circumference F16J9/08with expansion obtained by pressure of the medium F16J9/10Special members for adjusting the rings F16J9/12Details F16J9/14Joint-closures F16J9/145of spring expanders F16J9/16obtained by stacking of rings F16J9/18with separate bridge-elements F16J9/20Rings with special cross-section Oil-scraping rings F16J9/203Oil-scraping rings F16J9/206One-piece oil-scraping rings F16J9/22Rings for preventing wear of grooves or like seatings F16J9/24Members preventing rotation of rings in grooves F16J9/26characterised by the use of particular materials F16J9/28of non-metals
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Low friction, wear resistant piston seal
    • Patent number 11,976,732
    • Issue date May 7, 2024
    • RTX Corporation
    • Pantcho P. Stoyanov
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston assembly, air cylinder and apparatus for processing substrate
    • Patent number 11,965,597
    • Issue date Apr 23, 2024
    • Semes Co., Ltd.
    • Sung Hun Eom
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring system for an internal combustion engine with direct wa...
    • Patent number 11,959,552
    • Issue date Apr 16, 2024
    • Federal-Mogul Burscheid GmbH
    • Richard Mittler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sliding member, manufacturing method thereof, and coating film
    • Patent number 11,946,010
    • Issue date Apr 2, 2024
    • Nippon Piston Ring Co., Ltd.
    • Takahiro Okazaki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Open-faced piston assembly
    • Patent number 11,946,435
    • Issue date Apr 2, 2024
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Compression ring
    • Patent number 11,933,407
    • Issue date Mar 19, 2024
    • Kabushiki Kaisha Riken
    • Hiroaki Saito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing assembly and turbomachine including same
    • Patent number 11,913,339
    • Issue date Feb 27, 2024
    • DOOSAN ENERBILITY CO., LTD.
    • Eui Jun Ju
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Coated piston ring for an internal combustion engine
    • Patent number 11,906,052
    • Issue date Feb 20, 2024
    • Tenneco Inc.
    • Robert Reuven Aharonov
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Internal combustion engine
    • Patent number 11,906,051
    • Issue date Feb 20, 2024
    • Nissan North America Inc.
    • Williams Muñoz
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston seal ring
    • Patent number 11,892,083
    • Issue date Feb 6, 2024
    • RTX Corporation
    • Liam P. Sullivan
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Combined oil ring
    • Patent number 11,873,780
    • Issue date Jan 16, 2024
    • Nippon Piston Ring Co., Ltd.
    • Masahiro Uchiumi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Springs for piston ring biasing
    • Patent number 11,873,906
    • Issue date Jan 16, 2024
    • Mainspring Energy, Inc.
    • Matthew Svrcek
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sliding member
    • Patent number 11,867,294
    • Issue date Jan 9, 2024
    • TPR CO., LTD.
    • Tomoyuki Sato
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Sliding member
    • Patent number 11,867,295
    • Issue date Jan 9, 2024
    • TPR CO., LTD.
    • Tomoyuki Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combination of cylinder and piston ring
    • Patent number 11,821,524
    • Issue date Nov 21, 2023
    • Kabushiki Kaisha Riken
    • Akio Shinohara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Manufacturing of aluminum piston with cast iron ring carrier using...
    • Patent number 11,821,384
    • Issue date Nov 21, 2023
    • GM Global Technology Operations LLC
    • Qigui Wang
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Disk brake
    • Patent number 11,815,141
    • Issue date Nov 14, 2023
    • Hitachi Astemo, Ltd.
    • Kohei Matsushita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil scraper ring for a piston rod
    • Patent number 11,808,360
    • Issue date Nov 7, 2023
    • Hoerbiger Wien GmbH
    • Marian Janko-Grasslober
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Using silicone o-rings in dual action irrigation pump
    • Patent number 11,795,941
    • Issue date Oct 24, 2023
    • BIOSENSE WEBSTER (ISRAEL) LTD.
    • Yehuda Algawi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston ring for engine and machining method of piston ring
    • Patent number 11,788,622
    • Issue date Oct 17, 2023
    • Mahle Automotive Technologies (China) Co., Ltd.
    • Wentao Jiang
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Injector piston with improved seal
    • Patent number 11,774,040
    • Issue date Oct 3, 2023
    • LINCOLN INDUSTRIAL CORPORATIO
    • Tadd McBride
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Cupseal for compressor and method for preparing the same
    • Patent number 11,773,976
    • Issue date Oct 3, 2023
    • Saint-Gobain Performance Plastics Corporation
    • Tao He
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Combination piston and piston ring for reducing crevice volume
    • Patent number 11,773,974
    • Issue date Oct 3, 2023
    • LiquidPiston, Inc.
    • Nikolay Shkolnik
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston sealing ring assembly having a gap cover element
    • Patent number 11,767,915
    • Issue date Sep 26, 2023
    • Mainspring Energy, Inc.
    • Jodie Prudhomme
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Internal combustion engine with reduced oil maintenance
    • Patent number 11,761,402
    • Issue date Sep 19, 2023
    • Briggs & Stratton, LLC
    • Jacob Zuehl
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Side plate for rotary engine
    • Patent number 11,761,376
    • Issue date Sep 19, 2023
    • Pratt & Whitney Canada Corp.
    • Johnny Vinski
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Pump seal
    • Patent number 11,761,536
    • Issue date Sep 19, 2023
    • Chart Inc.
    • Eric Thor
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring and method for manufacturing same
    • Patent number 11,746,903
    • Issue date Sep 5, 2023
    • Akio Shinohara
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Reinforced sealing rings
    • Patent number 11,746,904
    • Issue date Sep 5, 2023
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring
    • Patent number 11,739,840
    • Issue date Aug 29, 2023
    • Nippon Piston Ring Co., Ltd.
    • Kyoichi Ikeya
    • 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

    PISTON RING
    • Publication number 20240125386
    • Publication date Apr 18, 2024
    • NTN Corporation
    • Ken YASUDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHODS FOR SURFACE MODIFICATION OF MID-TURBINE FRAME PISTON SEAL R...
    • Publication number 20240117880
    • Publication date Apr 11, 2024
    • RTX Corporation
    • Hamidreza Mohseni
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SLIDING MEMBER
    • Publication number 20240110287
    • Publication date Apr 4, 2024
    • MAHLE International GmbH
    • Juliano Avelar Araújo
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Compression Ring
    • Publication number 20240110625
    • Publication date Apr 4, 2024
    • TPR CO., LTD.
    • Takashi Ozawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL RING WIRE
    • Publication number 20240093325
    • Publication date Mar 21, 2024
    • TOKUSEN KOGYO CO., LTD.
    • Miho FUJINO
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    SIDE RAIL AND OIL CONTROL RING COMPRISING SAME
    • Publication number 20240084894
    • Publication date Mar 14, 2024
    • Kabushiki Kaisha Riken
    • Hiroyuki YABUNE
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Combination Piston and Piston Ring for Reduction of Crevice Volume
    • Publication number 20240077137
    • Publication date Mar 7, 2024
    • LIQUIDPISTON, INC.
    • Nikolay Shkolnik
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING FOR A PISTON COMPRESSOR
    • Publication number 20240044407
    • Publication date Feb 8, 2024
    • Burckhardt Compression AG
    • Norbert Feistel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RINGS AND METHODS OF MANUFACTURE
    • Publication number 20240035570
    • Publication date Feb 1, 2024
    • NANOFILM VACUUM COATING (SHANGHAI) CO., LTD.
    • Chao DU
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    OIL RING WIRE
    • Publication number 20240026972
    • Publication date Jan 25, 2024
    • TOKUSEN KOGYO CO., LTD.
    • Kei OTANI
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    PISTON RING
    • Publication number 20240026971
    • Publication date Jan 25, 2024
    • MAHLE International GmbH
    • Bruno Fineto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    INTERNAL COMBUSTION ENGINE WITH REDUCED OIL MAINTENANCE
    • Publication number 20240011452
    • Publication date Jan 11, 2024
    • Briggs & Stratton, LLC
    • Jacob Zuehl
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    USING SILICONE O-RINGS IN DUAL ACTION IRRIGATION PUMP
    • Publication number 20230417238
    • Publication date Dec 28, 2023
    • BIOSENSE WEBSTER (ISRAEL) LTD.
    • Yehuda Algawi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CRN Coating Film and Sliding Member
    • Publication number 20230416903
    • Publication date Dec 28, 2023
    • TPR CO., LTD.
    • Syun Sugawara
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    AXIAL THREE-WAY MODULATING VALVE
    • Publication number 20230407976
    • Publication date Dec 21, 2023
    • Mueller Refrigeration, LLC
    • RALPH S. BRYANT
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON ASSEMBLY, AIR CYLINDER AND APPARATUS FOR PROCESSING SUBSTRATE
    • Publication number 20230400097
    • Publication date Dec 14, 2023
    • SEMES CO., LTD.
    • Sung Hun EOM
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Sliding Member
    • Publication number 20230392688
    • Publication date Dec 7, 2023
    • TPR CO., LTD.
    • Tomoyuki Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Sliding Member
    • Publication number 20230392687
    • Publication date Dec 7, 2023
    • TPR CO., LTD.
    • Tomoyuki Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON SEALING RING ASSEMBLY HAVING A GAP COVER ELEMENT
    • Publication number 20230375086
    • Publication date Nov 23, 2023
    • Mainspring Energy, Inc.
    • Jodie Prudhomme
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Combination of Piston Rings, and Combination Structure of Piston an...
    • Publication number 20230358313
    • Publication date Nov 9, 2023
    • TPR CO., LTD.
    • Hiroyuki Nagakura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Piston for A Fuel Engine with Installed Bearings
    • Publication number 20230358190
    • Publication date Nov 9, 2023
    • Changchun Xincheng Automation Machinery Equipment Co., LTD
    • Lin Lei
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    LATERALLY MOVEABLE COMPRESSOR PISTON ROD LIP SEAL ASSEMBLY
    • Publication number 20230349465
    • Publication date Nov 2, 2023
    • ARIEL CORPORATION
    • Evan William KOONTZ
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MANUFACTURING OF ALUMINUM PISTON WITH CAST IRON RING CARRIER USING...
    • Publication number 20230349342
    • Publication date Nov 2, 2023
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Qigui Wang
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    SLIDING ELEMENT, IN PARTICULAR PISTON RING
    • Publication number 20230332686
    • Publication date Oct 19, 2023
    • FEDERAL-MOGUL BURSCHEID GMBH
    • GREGOR ENGLBERGER
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Piston Seal Ring
    • Publication number 20230323950
    • Publication date Oct 12, 2023
    • Raytheon Technologies Corporation
    • Liam P. Sullivan
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING
    • Publication number 20230304580
    • Publication date Sep 28, 2023
    • BÜMACH ENGINEERING INTERNATIONAL B.V.
    • Josef Bueter
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING
    • Publication number 20230304579
    • Publication date Sep 28, 2023
    • BÜMACH ENGINEERING INTERNATIONAL B.V.
    • Josef Bueter
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    OIL SCRAPER RING AND PISTON RING SET FOR AN INTERNAL COMBUSTION ENGINE
    • Publication number 20230296173
    • Publication date Sep 21, 2023
    • FEDERAL-MOGUL BURSCHEID GMBH
    • NIGEL GRAY
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE WITH DIRECT WA...
    • Publication number 20230272853
    • Publication date Aug 31, 2023
    • FEDERAL-MOGUL BURSCHEID GMBH
    • RICHARD MITTLER
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...