TREA

Keith W. Christiansen

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  • Fox River Grove, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of forming a fluid seal
    • Patent number 4,851,176
    • Issue date Jul 25, 1989
    • Chicago Rawhide Mfg. Co.
    • Keith W. Christiansen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for manufacturing seal components
    • Patent number 4,824,357
    • Issue date Apr 25, 1989
    • Chicago Rawhide Manufacturing Corporation
    • Keith W. Christiansen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Mold assembly for forming a seal unit
    • Patent number 4,738,606
    • Issue date Apr 19, 1988
    • Chicago Rawhide Manufacturing Co.
    • Keith W. Christiansen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of and apparatus for molding a composite fluorocarbon helix...
    • Patent number 4,689,190
    • Issue date Aug 25, 1987
    • Chicago Rawhide Mfg. Co.
    • Glenn Peisker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Composite teflon helix seal
    • Patent number 4,501,431
    • Issue date Feb 26, 1985
    • Chicago Rawhide Manufacturing Company
    • Glenn Peisker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Apparatus for unloading molded articles
    • Patent number 4,363,595
    • Issue date Dec 14, 1982
    • Chicago Rawhide Manufacturing Company
    • Jerry D. Reichenbach
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Sinuous seal with auxiliary excluder lips
    • Patent number 4,336,945
    • Issue date Jun 29, 1982
    • CR Industries
    • Keith W. Christiansen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Insert molding apparatus with movable flash barrier
    • Patent number 4,249,874
    • Issue date Feb 10, 1981
    • CR Industries
    • Jerry D. Reichenbach
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Multiple lip seal
    • Patent number 4,219,205
    • Issue date Aug 26, 1980
    • CR Industries
    • Keith W. Christiansen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Retainer assembly for mold plate
    • Patent number 3,993,420
    • Issue date Nov 23, 1976
    • Chicago Rawhide Manufacturing Company
    • Norman C. Haas
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Closed stroke molding
    • Patent number 3,936,257
    • Issue date Feb 3, 1976
    • Chicago Rawhide Manufacturing Company
    • Keith W. Christiansen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL