TREA

Peter Ehrmann

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  • Hemsbach, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Shaft seal
    • Patent number 5,139,275
    • Issue date Aug 18, 1992
    • Firma Carl Freudenberg
    • Peter Ehrmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing ring having a sealing surfacer with a recessional annular p...
    • Patent number 4,886,281
    • Issue date Dec 12, 1989
    • Firma Carl Freudenberg
    • Peter Ehrmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seal ring having an axis parallel intermediate ring
    • Patent number 4,553,763
    • Issue date Nov 19, 1985
    • Freudenberg; Carl
    • Peter Ehrmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Radial shaft sealing ring having a sealing lip and liquid deflectors
    • Patent number 4,447,064
    • Issue date May 8, 1984
    • Firma Carl Freudenberg
    • Peter Ehrmann
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Radial shaft sealing ring
    • Patent number 4,427,205
    • Issue date Jan 24, 1984
    • Firma Carl Freudenberg
    • Helmut Holzer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...