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David E. Boring

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  • East Berlin, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Conveyor with integrated self-actuating clamp
    • Patent number 5,947,262
    • Issue date Sep 7, 1999
    • Ser-Tek Systems, Inc.
    • David E. Boring
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Self venting plunger
    • Patent number 5,878,922
    • Issue date Mar 9, 1999
    • Sunoco Products Company
    • David E. Boring
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Vector screen printing method and apparatus
    • Patent number 5,711,217
    • Issue date Jan 27, 1998
    • Ser-Tek Systems, Inc.
    • David E. Boring
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Method and apparatus for extruding plastic tubing
    • Patent number 5,630,982
    • Issue date May 20, 1997
    • Sonoco Products Company
    • David E. Boring
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Cartridge plunger with surface cleaning skirt
    • Patent number 5,622,288
    • Issue date Apr 22, 1997
    • Sonoco Products Company
    • David E. Boring
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Recyclable caulk cartridge with breakaway nozzle
    • Patent number 5,560,521
    • Issue date Oct 1, 1996
    • Sonoco Products Company
    • David E. Boring
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Caulk cartridge with valve control
    • Patent number 5,297,697
    • Issue date Mar 29, 1994
    • Sonoco Products Company
    • David E. Boring
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Self-regulating gate valve assembly for injection molding apparatus
    • Patent number 4,781,572
    • Issue date Nov 1, 1988
    • Sonoco Products Company
    • David E. Boring
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Positive seal spout
    • Patent number 4,342,408
    • Issue date Aug 3, 1982
    • Sonoco Products Company
    • David E. Boring
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL