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Ronald Moskowitz

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  • Hollis, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ferrofluid-cooled electromagnetic device and improved cooling method
    • Patent number 5,462,685
    • Issue date Oct 31, 1995
    • Ferrofluidics Corporation
    • Kuldip Raj
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Loudspeaker
    • Patent number 5,461,677
    • Issue date Oct 24, 1995
    • Ferrofluidics Corporation
    • Kuldip Raj
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Ferrofluid pressure sensor
    • Patent number 5,429,000
    • Issue date Jul 4, 1995
    • Ferrofluidics Corporation
    • Kuldip Raj
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Stacked pole-piece ferrofluid seal apparatus
    • Patent number 5,018,751
    • Issue date May 28, 1991
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ferrofluid seal with epoxy pole pieces
    • Patent number 4,927,164
    • Issue date May 22, 1990
    • Ferrofluidics Corporation
    • Kuldip Raj
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Compact ferrofluidic electrically conducting sealed bearing
    • Patent number 4,898,480
    • Issue date Feb 6, 1990
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tapered ferrofluid seal
    • Patent number 4,890,850
    • Issue date Jan 2, 1990
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Long-life multi-stage ferrofluid seals incorporating a ferrofluid r...
    • Patent number 4,865,334
    • Issue date Sep 12, 1989
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compact long-life magnetic fluid seal
    • Patent number 4,830,384
    • Issue date May 16, 1989
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compact magnetic fluid low pressure seal
    • Patent number 4,824,122
    • Issue date Apr 25, 1989
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compact ferrofluidic electrically conducting sealed bearing
    • Patent number 4,797,013
    • Issue date Jan 10, 1989
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compact magnetic fluid low pressure seal
    • Patent number 4,772,032
    • Issue date Sep 20, 1988
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Nonbursting magnetic liquid seals for high vacuum applications
    • Patent number 4,445,696
    • Issue date May 1, 1984
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Nonbursting multiple-stage ferrofluid seal and system
    • Patent number 4,407,518
    • Issue date Oct 4, 1983
    • Ferrofluidics Corporation
    • Ronald Moskowitz
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self-activating ferrofluid seals
    • Patent number 4,252,353
    • Issue date Feb 24, 1981
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self-activating ferrofluid seal and method
    • Patent number 4,252,328
    • Issue date Feb 24, 1981
    • Ferrofluidics Corporation
    • Kuldip Raj
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ferrofluid centrifugal seal
    • Patent number 4,200,296
    • Issue date Apr 29, 1980
    • Ferrofluidics Corporation
    • Philip Stahl
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dynamic lip seal using ferrofluids as sealant/lubricant
    • Patent number 4,171,818
    • Issue date Oct 23, 1979
    • Ferrofluidics Corporation
    • Ronald Moskowitz
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Inertia damper using ferrofluid
    • Patent number 4,123,675
    • Issue date Oct 31, 1978
    • Ferrofluidics Corporation
    • Ronald Moskowitz
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Magnetic ball bearing assembly using ferrolubricants
    • Patent number 3,977,739
    • Issue date Aug 31, 1976
    • Ferrofluidics Corporation
    • Ronald Moskowitz
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...