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Philip Stahl

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  • Holliston, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ferrofluid bearing and seal apparatus
    • Patent number 4,630,943
    • Issue date Dec 23, 1986
    • Ferrofluidics Corporation
    • Philip Stahl
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ferrofluid thrust and radial bearing assembly
    • Patent number 4,526,484
    • Issue date Jul 2, 1985
    • Ferrofluidics Corporation
    • Philip Stahl
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self-activating ferrofluid seal apparatus and method
    • Patent number 4,444,398
    • Issue date Apr 24, 1984
    • Ferrofluidics Corporation
    • Thomas J. Black
    • 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