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Ralph C. Longsworth

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  • Allentown, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Split pulse tube connecting line
    • Patent number 12,018,780
    • Issue date Jun 25, 2024
    • Sumitomo (SHI) Cryogenics of America, Inc.
    • Mingyao Xu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Reversible pneumatic drive expander
    • Patent number 11,662,123
    • Issue date May 30, 2023
    • Sumitomo (SHI) Cryogenics of America, Inc.
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Heat station for cooling a circulating cryogen
    • Patent number 11,649,989
    • Issue date May 16, 2023
    • Sumitomo (SHI) Cryogenics of America, Inc.
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Co-axtal, double-inlet valve for pulse tube cryocooler
    • Patent number 11,604,010
    • Issue date Mar 14, 2023
    • Sumitomo (SHI) Cryogenics of America, Inc.
    • Tian Lei
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Helium compressor with dual after-coolers
    • Patent number RE49384
    • Issue date Jan 24, 2023
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • R Bruce Sloan
  • Information Patent Grant

    Hybrid Gifford-McMahon-Brayton expander
    • Patent number 11,215,385
    • Issue date Jan 4, 2022
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Dual helium compressors
    • Patent number 11,149,992
    • Issue date Oct 19, 2021
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • Eric Robert Seitz
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Gas balanced engine with buffer
    • Patent number 11,137,181
    • Issue date Oct 5, 2021
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Hybrid Brayton—Gifford-McMahon expander
    • Patent number 10,794,616
    • Issue date Oct 6, 2020
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Heat station for cooling a circulating cryogen
    • Patent number 10,753,653
    • Issue date Aug 25, 2020
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • Ralph C. Longsworth
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    System for warming-up and cooling-down a superconducting magnet
    • Patent number 10,704,809
    • Issue date Jul 7, 2020
    • Sumitomo (SHI) Cryogenics of America, Inc.
    • Ralph C. Longsworth
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Brayton cycle engine with high displacement rate and low vibration
    • Patent number 10,677,498
    • Issue date Jun 9, 2020
    • Sumitomo (SHI) Cryogenics of America, Inc.
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Cryogenic expander with collar bumper for reduced noise and vibrati...
    • Patent number 10,634,393
    • Issue date Apr 28, 2020
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Helium compressor with dual after-coolers
    • Patent number 10,240,832
    • Issue date Mar 26, 2019
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • R Bruce Sloan
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    MRI cool down apparatus
    • Patent number 9,897,350
    • Issue date Feb 20, 2018
    • Sumitomo (Shi) Cryogenics of America Inc.
    • Ralph Longsworth
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Gas balanced cryogenic expansion engine
    • Patent number 9,581,360
    • Issue date Feb 28, 2017
    • SUMITOMO (SHI) CRYOGENIC OF AMERICA, INC.
    • Stephen Dunn
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Gas balanced brayton cycle cold water vapor cryopump
    • Patent number 9,546,647
    • Issue date Jan 17, 2017
    • Sumitomo (Shi) Cryogenics of America Inc.
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Cryopump drain and vent
    • Patent number 9,186,601
    • Issue date Nov 17, 2015
    • Sumitomo (Shi) Cryogenics of America Inc.
    • Ralph Longsworth
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Low profile cryopump
    • Patent number 9,174,144
    • Issue date Nov 3, 2015
    • Sumitomo (Shi) Cryogenics of America Inc.
    • Ralph Longsworth
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Gas balanced cryogenic expansion engine
    • Patent number 9,080,794
    • Issue date Jul 14, 2015
    • Sumitomo (SHI) Cryogenics of America, Inc.
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Air cooled helium compressor
    • Patent number 8,978,400
    • Issue date Mar 17, 2015
    • Sumitomo (Shi) Cryogenics of America Inc.
    • Stephen Dunn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gas balanced cryogenic expansion engine
    • Patent number 8,776,534
    • Issue date Jul 15, 2014
    • Sumitomo (Shi) Cryogenics of America Inc.
    • Stephen Dunn
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Fast cool down cryogenic refrigerator
    • Patent number 8,448,461
    • Issue date May 28, 2013
    • Sumitomo (Shi) Cryogenics of America Inc.
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Co-axial multi-stage pulse tube for helium recondensation
    • Patent number 8,418,479
    • Issue date Apr 16, 2013
    • Sumitomo Heavy Industries, Ltd.
    • Mingyao Xu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Horizontal bulk oil separator
    • Patent number 8,187,370
    • Issue date May 29, 2012
    • SHI-APD Cryogenics, Inc.
    • Stephen B. Dunn
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Hybrid spool valve for multi-port pulse tube
    • Patent number 7,997,088
    • Issue date Aug 16, 2011
    • Sumitomo Heavy Industries, Ltd.
    • Ralph C. Longsworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Wearless valve for cryorefrigerator
    • Patent number 7,631,505
    • Issue date Dec 15, 2009
    • Sumitomo Heavy Industries, Ltd.
    • Eric Seitz
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerator with magnetic shield
    • Patent number 7,500,366
    • Issue date Mar 10, 2009
    • SHI-APD Cryogencis, Inc.
    • Mingyao Xu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Co-axial multi-stage pulse tube for helium recondensation
    • Patent number 7,497,084
    • Issue date Mar 3, 2009
    • Sumitomo Heavy Industries, Ltd.
    • Mingyao Xu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Pulse tube cooling by circulation of buffer gas
    • Patent number 7,305,835
    • Issue date Dec 11, 2007
    • SHI-APD Cryogenics, Inc.
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

  • Information Patent Application

    SYSTEM FOR CAPTURING VAPOR FROM A CRYOGENIC STORAGE TANK
    • Publication number 20230288029
    • Publication date Sep 14, 2023
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Stephen B. DUNN
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Application

    GAS ENERGIZED SEAL FOR GIFFORD-MCMAHON EXPANDER
    • Publication number 20230129966
    • Publication date Apr 27, 2023
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Eric F. FINLAYSON
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    CO-AXIAL DOUBLE-INLET VALVE FOR PULSE TUBE CRYOCOOLER
    • Publication number 20220065500
    • Publication date Mar 3, 2022
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Tian LEI
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    REVERSIBLE PNEUMATIC DRIVE EXPANDER
    • Publication number 20220065499
    • Publication date Mar 3, 2022
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph C. LONGSWORTH
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    HYBRID DOUBLE-INLET VALVE FOR PULSE TUBE CRYOCOOLER
    • Publication number 20220049878
    • Publication date Feb 17, 2022
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Mingyao XU
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    DUAL HELIUM COMPRESSORS
    • Publication number 20220003462
    • Publication date Jan 6, 2022
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Eric Robert Seitz
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    SPLIT PULSE TUBE CONNECTING LINE
    • Publication number 20210301957
    • Publication date Sep 30, 2021
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Mingyao XU
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    HEAT STATION FOR COOLING A CIRCULATING CRYOGEN
    • Publication number 20200318864
    • Publication date Oct 8, 2020
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph C. Longsworth
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    SYSTEM FOR WARMING-UP AND COOLING-DOWN A SUPERCONDUCTING MAGNET
    • Publication number 20190316813
    • Publication date Oct 17, 2019
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph C. LONGSWORTH
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Application

    HEAT STATION FOR COOLING A CIRCULATING CRYOGEN
    • Publication number 20190309994
    • Publication date Oct 10, 2019
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    GAS BALANCED ENGINE WITH BUFFER
    • Publication number 20180066878
    • Publication date Mar 8, 2018
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph C. LONGSWORTH
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    CRYOGENIC EXPANDER WITH COLLAR BUMPER FOR REDUCED NOISE AND VIBRATI...
    • Publication number 20180023849
    • Publication date Jan 25, 2018
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    COLD START HELIUM COMPRESSOR
    • Publication number 20170175743
    • Publication date Jun 22, 2017
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Stephen Dunn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DUAL HELIUM COMPRESSORS
    • Publication number 20170176055
    • Publication date Jun 22, 2017
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Eric Robert Seitz
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    HELIUM COMPRESSOR WITH DUAL AFTER-COOLERS
    • Publication number 20170176070
    • Publication date Jun 22, 2017
    • Sumitomo (SHI) Cryogenics of America, Inc
    • R Bruce Sloan
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    HYBRID GIFFORD-McMAHON - BRAYTON EXPANDER
    • Publication number 20160216010
    • Publication date Jul 28, 2016
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph C. Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    MRI COOL DOWN APPARATUS
    • Publication number 20150354865
    • Publication date Dec 10, 2015
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    CRYOGENIC ENGINE WITH ROTARY VALVE
    • Publication number 20150226465
    • Publication date Aug 13, 2015
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph Longsworth
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    HYBRID BRAYTON - GIFFORD-McMAHON EXPANDER
    • Publication number 20150176867
    • Publication date Jun 25, 2015
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    BRAYTON CYCLE ENGINE
    • Publication number 20150159586
    • Publication date Jun 11, 2015
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph Longsworth
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    GAS BALANCED CRYOGENIC EXPANSION ENGINE
    • Publication number 20140290278
    • Publication date Oct 2, 2014
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Stephen Dunn
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    LOW PROFILE CRYOPUMP
    • Publication number 20130276466
    • Publication date Oct 24, 2013
    • Ralph Longsworth
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    CRYOPUMP DRAIN AND VENT
    • Publication number 20130276467
    • Publication date Oct 24, 2013
    • Ralph Longsworth
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    GAS BALANCED BRAYTON CYCLE COLD WATER VAPOR CRYOPUMP
    • Publication number 20130008190
    • Publication date Jan 10, 2013
    • Ralph Longsworth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GAS BALANCED CRYOGENIC EXPANSION ENGINE
    • Publication number 20120285181
    • Publication date Nov 15, 2012
    • Stephen Dunn
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Fast Cool Down Cryogenic Refrigerator
    • Publication number 20120085121
    • Publication date Apr 12, 2012
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    GAS BALANCED CRYOGENIC EXPANSION ENGINE
    • Publication number 20110219810
    • Publication date Sep 15, 2011
    • Sumitomo (SHI) Cryogenics of America, Inc
    • Ralph Longsworth
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Air Cooled Helium Compressor
    • Publication number 20110107790
    • Publication date May 12, 2011
    • Stephen Dunn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CRYOPUMP LOUVER EXTENSION
    • Publication number 20100011784
    • Publication date Jan 21, 2010
    • Sumitomo Heavy Industries, Ltd.
    • Ralph Longsworth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CO-AXIAL MULTI-STAGE PULSE TUBE FOR HELIUM RECONDENSATION
    • Publication number 20090173083
    • Publication date Jul 9, 2009
    • SHI-APD CRYOGENICS, INC.
    • Mingyao Xu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...