TREA

Davis B. Dwinell

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  • Carol Stream, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pail vent and method
    • Patent number 6,868,993
    • Issue date Mar 22, 2005
    • American Flange Mfg. Co., Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Drum plug and seal
    • Patent number 6,726,048
    • Issue date Apr 27, 2004
    • American Flange & Mfg. Co., Inc
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Snap on closure and method
    • Patent number 6,386,405
    • Issue date May 14, 2002
    • Royal Packaging Industries Van Leer NV
    • Herman P. Kars
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Anti-glug vent for plastic pails
    • Patent number 5,906,288
    • Issue date May 25, 1999
    • Royal Packaging Industries Van Leer N.V.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Pail closure application method
    • Patent number 5,256,225
    • Issue date Oct 26, 1993
    • Royal Packaging Industries Van Leer B.V.
    • Davis B. Dwinell
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Pail closure with spout and improved seal
    • Patent number 5,221,028
    • Issue date Jun 22, 1993
    • Royal Packaging Industries Van Leer B.V.
    • Davis B. Dwinell
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Protective closure
    • Patent number 4,905,862
    • Issue date Mar 6, 1990
    • American Flange & Manufacturing Co. Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Nestable self-venting spout
    • Patent number 4,568,006
    • Issue date Feb 4, 1986
    • American Flange & Manufacturing Co. Inc.
    • Hugo Mueller
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Container closure having a frangible outer cap
    • Patent number 4,520,942
    • Issue date Jun 4, 1985
    • American Flange & Manufacturing Co. Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Tear open closure assembly
    • Patent number 4,442,949
    • Issue date Apr 17, 1984
    • American Flange & Manufacturing Co. Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Nestable pouring spout assembly
    • Patent number 4,236,629
    • Issue date Dec 2, 1980
    • American Flange & Manufacturing Co. Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Single use pouring spout and combination
    • Patent number 4,163,512
    • Issue date Aug 7, 1979
    • American Flange & Manufacturing Co. Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Frangible closure for containers and method
    • Patent number 4,146,148
    • Issue date Mar 27, 1979
    • American Flange & Manufacturing Co. Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Threaded closure
    • Patent number 4,117,949
    • Issue date Oct 3, 1978
    • American Flange & Manufacturing Co. Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Retractable pouring spout closure
    • Patent number 4,022,357
    • Issue date May 10, 1977
    • American Flange & Manufacturing Co., Inc.
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Drum plug and seal
    • Publication number 20040045965
    • Publication date Mar 11, 2004
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Pail vent and method
    • Publication number 20040031822
    • Publication date Feb 19, 2004
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Closure assembly and method
    • Publication number 20030213812
    • Publication date Nov 20, 2003
    • Herman P. Kars
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Snap on closure
    • Publication number 20020108974
    • Publication date Aug 15, 2002
    • Davis B. Dwinell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL