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Hans Forch

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  • Birkenau, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealing arrangement
    • Patent number 5,332,234
    • Issue date Jul 26, 1994
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Slide ring seal
    • Patent number 5,018,749
    • Issue date May 28, 1991
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shaft and sealing ring
    • Patent number 4,709,930
    • Issue date Dec 1, 1987
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Radial shaft seal ring with backfeed ribs and damming ribs
    • Patent number 4,695,063
    • Issue date Sep 22, 1987
    • Firma Carl Freudenberg
    • Wolfgang Schmitt
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Lip seal with channeled and non-channeled portions
    • Patent number 4,546,985
    • Issue date Oct 15, 1985
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seal ring with channel for radially accelerating medium to be sealed
    • Patent number 4,428,587
    • Issue date Jan 31, 1984
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure-balanced packing
    • Patent number 4,304,414
    • Issue date Dec 8, 1981
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seal for the gap between a revolving shaft and the bore of a housin...
    • Patent number 4,277,072
    • Issue date Jul 7, 1981
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Annular seal
    • Patent number 4,240,643
    • Issue date Dec 23, 1980
    • Carl Freudenberg
    • Bernd Becker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing ring
    • Patent number 4,202,555
    • Issue date May 13, 1980
    • Firma Carl Freudenberg
    • Bernd Becker
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Radial shaft sealing ring
    • Patent number 4,194,748
    • Issue date Mar 25, 1980
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure-balanced packing
    • Patent number 4,172,599
    • Issue date Oct 30, 1979
    • Firma Carl Freudenberg
    • Hans Forch
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...