TREA

Helical rings

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Industry

  • CPC
  • F16J9/04
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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

F16J9/04Helical rings
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Stamp-sealing unit and ultrasonic processing device comprising same
    • Patent number 10,393,152
    • Issue date Aug 27, 2019
    • Herrmann Ultraschalltechnik GmbH & Co. KG
    • Volker Aust
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Valve having double wound lamellar ring
    • Patent number 7,237,761
    • Issue date Jul 3, 2007
    • Siemens AG
    • Peter Kohlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure sealing device for the gap between two coaxial cylindrical...
    • Patent number 5,029,880
    • Issue date Jul 9, 1991
    • Volvo Hydraulik AB
    • Ingvar Johansson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spiral piston ring with tapered ends and recesses
    • Patent number 4,576,381
    • Issue date Mar 18, 1986
    • Rix Industries
    • Don S. Slack
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Expanding helical seal for pistons and the like
    • Patent number 4,333,661
    • Issue date Jun 8, 1982
    • Hughes Aircraft Company
    • David A. Merrell
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring structure
    • Patent number 3,949,997
    • Issue date Apr 13, 1976
    • Alfred Bergeron
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2782082
    • Patent number 2,782,082
    • Issue date Feb 19, 1957
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    2689774
    • Patent number 2,689,774
    • Issue date Sep 21, 1954
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2650869
    • Patent number 2,650,869
    • Issue date Sep 1, 1953
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2585952
    • Patent number 2,585,952
    • Issue date Feb 12, 1952
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2577140
    • Patent number 2,577,140
    • Issue date Dec 4, 1951
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2424868
    • Patent number 2,424,868
    • Issue date Jul 29, 1947
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2360568
    • Patent number 2,360,568
    • Issue date Oct 17, 1944
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2317637
    • Patent number 2,317,637
    • Issue date Apr 27, 1943
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2160654
    • Patent number 2,160,654
    • Issue date May 30, 1939
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2127036
    • Patent number 2,127,036
    • Issue date Aug 16, 1938
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2125541
    • Patent number 2,125,541
    • Issue date Aug 2, 1938
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2124623
    • Patent number 2,124,623
    • Issue date Jul 26, 1938
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    2044499
    • Patent number 2,044,499
    • Issue date Jun 16, 1936
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2043424
    • Patent number 2,043,424
    • Issue date Jun 9, 1936
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1965417
    • Patent number 1,965,417
    • Issue date Jul 3, 1934
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1920470
    • Patent number 1,920,470
    • Issue date Aug 1, 1933
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1767164
    • Patent number 1,767,164
    • Issue date Jun 24, 1930
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1730478
    • Patent number 1,730,478
    • Issue date Oct 8, 1929
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1711244
    • Patent number 1,711,244
    • Issue date Apr 30, 1929
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1701489
    • Patent number 1,701,489
    • Issue date Feb 12, 1929
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1682886
    • Patent number 1,682,886
    • Issue date Sep 4, 1928
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1667092
    • Patent number 1,667,092
    • Issue date Apr 24, 1928
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1611085
    • Patent number 1,611,085
    • Issue date Dec 14, 1926
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1592704
    • Patent number 1,592,704
    • Issue date Jul 13, 1926
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    HELICAL DYNAMIC SEAL RING
    • Publication number 20240367783
    • Publication date Nov 7, 2024
    • GOODRICH CORPORATION
    • KYLE M MADEY
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING FOR AN INTERNAL COMBUSTION ENGINE
    • Publication number 20130213221
    • Publication date Aug 22, 2013
    • Federal-Mogul Corporation
    • Blair Matthew Jenness
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    SPOOL TYPE HYDRAULIC CONTROL VALVE WHICH SPOOL IS SEALED WITH ALL M...
    • Publication number 20130014845
    • Publication date Jan 17, 2013
    • NEO MECHANICS LIMITED
    • Kyong Tae Chang
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    Valve
    • Publication number 20070007481
    • Publication date Jan 11, 2007
    • Siemens Aktiengesellschaft
    • Peter Kohlen
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS