Patents Assigned to Westvaco Corp.
  • Easy open envelope
    Patent number: 6716150
    Abstract: An envelope comprising a tear strip that functions as an efficient opening means for access to the envelope contents.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: April 6, 2004
    Assignee: Mead Westvaco Corp
    Inventor: Douglas K. Purcell
  • Paperboard carrier for prepared food
    Patent number: 6390299
    Abstract: This invention relates to carrier straps for carrying prepared foods, such as rotisserie chickens, roasted turkey, roasted ham, side dishes or deserts. Such structures of this type, generally, employ a one-handed, paperboard strap which is wrapped around the plastic tray and plastic domed lid package in which the prepared food is located. The carrier strap secures the prepared food package and transports it so that the purchaser's hands do not get greasy or hot. Also, the carrier strap functions to provide a printable surface to identify flavor and brand.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: May 21, 2002
    Assignee: Westvaco Corp.
    Inventors: Mark Mellon, William Roger Rigby
  • Base stock packaging structure including a colloidal copolymer for increased hold-out
    Patent number: 5882768
    Abstract: This invention relates to the use of a single "hold-out" coating layer including a colloidal copolymer applied by the paper machine on the press-applied barrier side of a paperboard substrate. Such structures of this type, generally, allow paper machine with only one coater on the barrier side to apply a sufficient coating for the desired hold-out.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: March 16, 1999
    Assignee: Westvaco Corp.
    Inventor: Robinson Camden Perkins Claytor