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John C. Dahlheimer

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  • Laconia, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Prelubricated multi-lipped radial shaft seal with large radial offs...
    • Patent number 7,963,526
    • Issue date Jun 21, 2011
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Radial shaft seal with large radial offset accommodation
    • Patent number 7,887,062
    • Issue date Feb 15, 2011
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Unitized seal with integral spacer
    • Patent number 7,845,740
    • Issue date Dec 7, 2010
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Seal seat ring component with locking and venting features
    • Patent number 7,673,479
    • Issue date Mar 9, 2010
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Face seal with constriction ring
    • Patent number 7,431,304
    • Issue date Oct 7, 2008
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Heat conducting seal
    • Patent number 7,431,303
    • Issue date Oct 7, 2008
    • Freudenberg-NOK General Partnership
    • John Dahlheimer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Seal seat assembly with specialized features
    • Patent number 7,311,307
    • Issue date Dec 25, 2007
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fan cooled seal seat
    • Patent number 7,108,266
    • Issue date Sep 19, 2006
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Deflectable enclosure cover
    • Patent number 6,896,481
    • Issue date May 24, 2005
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Bellows face seal assembly
    • Patent number 6,805,357
    • Issue date Oct 19, 2004
    • Freudenberg-Nok GP
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Elastomeric pump impeller
    • Patent number 6,328,528
    • Issue date Dec 11, 2001
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gimballed mechanical face seal
    • Patent number 6,113,106
    • Issue date Sep 5, 2000
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Unitized seal impeller thrust system
    • Patent number 6,062,815
    • Issue date May 16, 2000
    • Freudenberg-NOK General Partnership
    • Robert S. Holt
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Regenerative turbine pump cover
    • Patent number 5,951,241
    • Issue date Sep 14, 1999
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mechanical face seal assembly including a gasket
    • Patent number 5,676,382
    • Issue date Oct 14, 1997
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Extended life mechanical face seal assembly
    • Patent number 5,123,660
    • Issue date Jun 23, 1992
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Unitized Seal With Integral Spacer
    • Publication number 20090261650
    • Publication date Oct 22, 2009
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Prelubricated Multi-Lipped Radial Shaft Seal With Large Radial Offs...
    • Publication number 20080284110
    • Publication date Nov 20, 2008
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Radial Shaft Seal with Large Radial Offset Accommodation
    • Publication number 20080258406
    • Publication date Oct 23, 2008
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SEAL SEAT RING COMPONENT WITH LOCKING AND VENTING FEATURES
    • Publication number 20080047306
    • Publication date Feb 28, 2008
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    UNITIZED SEAL WITH INTEGRAL FLANGED SLEEVE
    • Publication number 20080048400
    • Publication date Feb 28, 2008
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Face seal with constriction ring
    • Publication number 20070108705
    • Publication date May 17, 2007
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Seal seat assembly with specialized features
    • Publication number 20070069476
    • Publication date Mar 29, 2007
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Unitized seal with integral spacer
    • Publication number 20060290067
    • Publication date Dec 28, 2006
    • Freudenberg-NOK General Partnership
    • John C. Dahlheimer
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Heat conducting seal
    • Publication number 20060120900
    • Publication date Jun 8, 2006
    • John Dahlheimer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Deflectable enclosure cover
    • Publication number 20040191062
    • Publication date Sep 30, 2004
    • John C. Dahlheimer
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Application

    Face seal with secondary seal
    • Publication number 20040026868
    • Publication date Feb 12, 2004
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Fan cooled seal seat
    • Publication number 20030214099
    • Publication date Nov 20, 2003
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Bellows face seal assembly
    • Publication number 20030006560
    • Publication date Jan 9, 2003
    • John C. Dahlheimer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...