TREA

Tandem seals

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  • CPC
  • F16J15/3484
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16JPISTONS CYLINDERS SEALINGS F16J15/00Sealings

Current Industry

F16J15/3484Tandem seals
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    High pressure gas sealing
    • Patent number 12,152,598
    • Issue date Nov 26, 2024
    • Dover Pumps & Process Solutions Segment, Inc.
    • Vitali Kvachnev
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Mechanical seal arrangement with improved cooling characteristics
    • Patent number 12,152,675
    • Issue date Nov 26, 2024
    • EagleBurgmann Germany GmbH & Co. KG
    • Stefan Ledig
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tandem seal pump
    • Patent number 12,092,127
    • Issue date Sep 17, 2024
    • CECO Environmental IP Inc.
    • Brian Schnelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Slide ring seal assembly which can be axially mounted
    • Patent number 11,940,051
    • Issue date Mar 26, 2024
    • EagleBurgmann Germany GmbH & Co. KG
    • Florian Morgenstern
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Non-pusher dry gas seal with sealing elastomer and systems utilizin...
    • Patent number 11,821,523
    • Issue date Nov 21, 2023
    • John Crane Inc.
    • James R. Wasser
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Reduced emission gas seal
    • Patent number 11,796,064
    • Issue date Oct 24, 2023
    • John Crane UK Limited
    • Ian Martyn Goldswain
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    High pressure gas sealing
    • Patent number 11,788,541
    • Issue date Oct 17, 2023
    • Dover Pumps & Process Solutions Segment, Inc.
    • Vitali Kvachnev
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Tandem seal pump
    • Patent number 11,788,542
    • Issue date Oct 17, 2023
    • Banjo Corporation
    • Daniel Truax
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Marine slide ring seal arrangement
    • Patent number 11,754,183
    • Issue date Sep 12, 2023
    • Eagle Burgmann Germany GmbH & Co. KG
    • Dieter Pfeil
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Double seal lubricated packing gland and rotating sleeve
    • Patent number 11,662,027
    • Issue date May 30, 2023
    • Viking Pump, Inc.
    • Christopher Mihm
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dual barrier seal
    • Patent number 11,635,142
    • Issue date Apr 25, 2023
    • Freudenberg Oil & Gas, LLC
    • Nagarjuna Jillella
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pump assembly, in particular for supplying a slide ring seal assembly
    • Patent number 11,585,346
    • Issue date Feb 21, 2023
    • EagleBurgmann Germany GmbH & Co. KG
    • Markus Bareis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Shaft sealing arrangement
    • Patent number 11,572,952
    • Issue date Feb 7, 2023
    • Dresser-Rand SAS
    • Olivier Lebigre
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Reduced emission gas seal
    • Patent number 11,396,883
    • Issue date Jul 26, 2022
    • John Crane UK Ltd.
    • Ian Martyn Goldswain
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Floating ring type mechanical seal
    • Patent number 11,371,500
    • Issue date Jun 28, 2022
    • Nippon Pillar Packing Co., Ltd.
    • Yuji Sato
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mechanical seal assembly with safety seal
    • Patent number 11,231,042
    • Issue date Jan 25, 2022
    • EagleBurgmann Germany GmbH & Co. KG
    • Ferdinand Werdecker
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Double seal lubricated packing gland and rotating sleeve
    • Patent number 11,168,794
    • Issue date Nov 9, 2021
    • Viking Pump, Inc.
    • Christopher Mihm
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seal ring assembly for a dynamoelectric machine
    • Patent number 11,162,591
    • Issue date Nov 2, 2021
    • General Electric Company
    • Matthew Robert Martin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seal assembly for use in earth-boring rotary tools in subterranean...
    • Patent number 11,131,148
    • Issue date Sep 28, 2021
    • Baker Hughes Oilfield Operations LLC
    • Gregory L. Ricks
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shaft face seal
    • Patent number 11,021,982
    • Issue date Jun 1, 2021
    • Hamilton Sundstrand Corporation
    • Michael R. Blewett
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rotating shaft mechanical seal
    • Patent number 10,920,889
    • Issue date Feb 16, 2021
    • ExxonMobil Chemical Patents Inc.
    • Norman F. Cook
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shaft sealing structure and primary coolant circulation pump
    • Patent number 10,914,382
    • Issue date Feb 9, 2021
    • Mitsubishi Heavy Industries, Ltd.
    • Naotaka Komatsu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Reduced emission gas seal
    • Patent number 10,871,167
    • Issue date Dec 22, 2020
    • John Crane UK Ltd.
    • Ian Martyn Goldswain
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Double mechanical seal, a stationary slide ring thereof and a pump...
    • Patent number 10,859,164
    • Issue date Dec 8, 2020
    • SULZER MANAGEMENT AG
    • Jukka Vainikainen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dry gas seal cooling arrangement and method
    • Patent number 10,677,255
    • Issue date Jun 9, 2020
    • Nuovo Pignone SRL
    • Leonardo Baldassarre
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shaft-sealing device
    • Patent number 10,605,255
    • Issue date Mar 31, 2020
    • Chi-Yun Kung
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dry gas seal with electronically controlled shutdown valve
    • Patent number 10,436,328
    • Issue date Oct 8, 2019
    • JOHN CRANE UK LTD.
    • Raphael Rouillon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Set screw, fixing structure, fixing method and sealing structure
    • Patent number 10,393,166
    • Issue date Aug 27, 2019
    • EagleBurgmann Japan Co., Ltd.
    • Masakazu Kito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Mechanical seal device
    • Patent number 10,352,454
    • Issue date Jul 16, 2019
    • Eagle Industry Co., Ltd.
    • Masakazu Kito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Mechanical seal assembly
    • Patent number 10,337,616
    • Issue date Jul 2, 2019
    • AES Engineering Ltd.
    • Andrew Parkin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    TANDEM SEAL PUMP
    • Publication number 20250003418
    • Publication date Jan 2, 2025
    • CECO Environmental IP Inc.
    • Brian SCHNELZER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HIGH PRESSURE GAS SEALING
    • Publication number 20240077083
    • Publication date Mar 7, 2024
    • Dover Pumps & Process Solutions Segment, Inc.
    • Vitali Kvachnev
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MECHANICAL SEAL ARRANGEMENT WITH IMPROVED COOLING CHARACTERISTICS
    • Publication number 20230375089
    • Publication date Nov 23, 2023
    • EagleBurgmann Germany GmbH & Co. KG
    • Stefan Ledig
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SHAFT SEAL SYSTEM
    • Publication number 20230258266
    • Publication date Aug 17, 2023
    • Woodex Bearing Company, Inc.
    • Corey VINCENT
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SHAFT SEALING ARRANGEMENT
    • Publication number 20220381349
    • Publication date Dec 1, 2022
    • Dresser-Rand SAS
    • Olivier Lebigre
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SLIDE RING SEAL ASSEMBLY WHICH CAN BE AXIALLY MOUNTED
    • Publication number 20220373092
    • Publication date Nov 24, 2022
    • EagleBurgmann Germany GmbH & Co. KG
    • Florian Morgenstern
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    REDUCED EMISSION GAS SEAL
    • Publication number 20220235790
    • Publication date Jul 28, 2022
    • John Crane UK Ltd.
    • Ian Martyn Goldswain
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MARINE SLIDE RING SEAL ARRANGEMENT
    • Publication number 20220186837
    • Publication date Jun 16, 2022
    • EagleBurgmann Germany GmbH & Co. KG
    • Dieter Pfeil
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    FLEXIBLE SEALING MEMBRANE AND SEAL ASSEMBLY FOR ROTARY SHAFT EQUIPMENT
    • Publication number 20220136607
    • Publication date May 5, 2022
    • John Crane Inc.
    • Darin Merrill Rasmussen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    FACE SEAL HAVING ELASTOMERIC RING WITH SURFACE SHAPE FOR IMPROVED S...
    • Publication number 20220128153
    • Publication date Apr 28, 2022
    • TRELLEBORG SEALING SOLUTIONS GERMANY GMBH
    • Andrea Nicolini
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DOUBLE SEAL LUBRICATED PACKING GLAND AND ROTATING SLEEVE
    • Publication number 20220042603
    • Publication date Feb 10, 2022
    • VIKING PUMP, INC.
    • Christopher Mihm
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    HIGH PRESSURE GAS SEALING
    • Publication number 20210355954
    • Publication date Nov 18, 2021
    • Dover Pumps & Process Solutions Segment, Inc.
    • Vitali Kvachnev
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DUAL BARRIER SEAL
    • Publication number 20210148468
    • Publication date May 20, 2021
    • Freudenberg Oil & Gas, LLC.
    • Nagarjuna JILLELLA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    REDUCED EMISSION GAS SEAL
    • Publication number 20210095683
    • Publication date Apr 1, 2021
    • John Crane UK Ltd.
    • Ian Martyn Goldswain
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SEAL ASSEMBLY FOR USE IN EARTH-BORING ROTARY TOOLS IN SUBTERRANEAN...
    • Publication number 20200408044
    • Publication date Dec 31, 2020
    • Baker Hughes Oilfield Operations LLC
    • Gregory L. Ricks
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    SEALING APPARATUS
    • Publication number 20200232563
    • Publication date Jul 23, 2020
    • Arai Seisakusho Co., Ltd.
    • Haruki NOBORI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MECHANICAL SEAL ASSEMBLY WITH SAFETY SEAL
    • Publication number 20200032809
    • Publication date Jan 30, 2020
    • EagleBurgmann Germany GmbH & Co. KG
    • Ferdinand Werdecker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DOUBLE SEAL LUBRICATED PACKING GLAND AND ROTATING SLEEVE
    • Publication number 20190383399
    • Publication date Dec 19, 2019
    • VIKING PUMP, INC.
    • Christopher Mihm
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Rotating Shaft Mechanical Seal
    • Publication number 20190211932
    • Publication date Jul 11, 2019
    • EXXONMOBIL CHEMICAL PATENTS INC.
    • Norman F. Cook
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    REDUCED EMISSION GAS SEAL
    • Publication number 20190211835
    • Publication date Jul 11, 2019
    • John Crane UK Ltd.
    • Ian Martyn Goldswain
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DOUBLE MECHANICAL SEAL, A STATIONARY SLIDE RING THEREOF AND A PUMP...
    • Publication number 20190145521
    • Publication date May 16, 2019
    • SULZER MANAGEMENT AG
    • Jukka VAINIKAINEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DRY GAS SEAL COOLING ARRANGEMENT AND METHOD
    • Publication number 20190003481
    • Publication date Jan 3, 2019
    • Nuovo Pignone Tecnologie S.r.l.
    • Leonardo BALDASSARRE
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MECHANICAL SEAL DEVICE FOR USE IN WATER ENVIRONMENT AND SEALING RIN...
    • Publication number 20180038487
    • Publication date Feb 8, 2018
    • EAGLE INDUSTRY CO., LTD.
    • Keitaro Nakamura
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Application

    UNITARY FACE SEAL ASSEMBLY
    • Publication number 20160076652
    • Publication date Mar 17, 2016
    • Engineered Seal Products, Inc.
    • Matt BANOWETZ
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DOUBLE MECHANICAL SEAL DEVICE
    • Publication number 20150159759
    • Publication date Jun 11, 2015
    • EAGLE INDUSTRY CO., LTD.
    • Yoshihiro Suefuji
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DRY GAS SEAL FOR SUPERCRITICAL CO2 PUMP-HIGH PRESSURE BUFFER
    • Publication number 20140321972
    • Publication date Oct 30, 2014
    • Nuovo Pignone S.p.A.
    • Carlo Del Vescovo
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID TRANSFER SEAL ASSEMBLIES, FLUID TRANSFER SYSTEMS, AND METHOD...
    • Publication number 20140300057
    • Publication date Oct 9, 2014
    • Honeywell International Inc.
    • Michael O'Brien
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    MECHANICAL SEAL SUPPORT SYSTEM
    • Publication number 20140265143
    • Publication date Sep 18, 2014
    • AES Engineering Ltd.
    • Thomas Broadbent
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    MECHANICAL SEAL WITH A BALANCE SHIFT MECHANISM
    • Publication number 20140232069
    • Publication date Aug 21, 2014
    • Larry E. Jacobs
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SHAFT SEAL APPARATUS
    • Publication number 20140232070
    • Publication date Aug 21, 2014
    • EAGLE BURGMANN JAPAN CO., LTD.
    • Yoshiaki Takigahira
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...