Patents Represented by Attorney, Agent or Law Firm R. L. Schmalz
  • Patent number: 6483587
    Abstract: This invention relates to gap/edge bead detection systems. Such structures of this type, generally, employ the use of fiber optic sensor assemblies positioned at the edges of the web and/or between gaps in the sheets in order to detect the absence of material.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: November 19, 2002
    Inventor: John Charles Jackson
  • Patent number: 6391158
    Abstract: This invention relates to a loose draw detector for a paper machine wet press. Such structure of this type, generally, use laser triangulation displacement sensors mounted and positioned to measure the point of web release from the center roll and measure paper web wrinkles in the form of rapid fluctuations/decreases in the standoff distance between sensors and the web passing over the leadout roll to determine loose draw.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: May 21, 2002
    Assignee: Westvaco Corporation
    Inventors: Steven Paul Metzler, Todd Arik Ninnemann, Roberta Lee Offenbacker
  • 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
  • Patent number: 6346332
    Abstract: This invention relates to a laminate substrate. An exemplary embodiment comprises a paperboard layer with a heat sealable layer secured substantially adjacent to one side of the paperboard layer. A co-extruded layer is secured substantially adjacent to the other side of the paperboard layer. The co-extruded layer has five layers: a heat sealable layer secured to the paperboard layer, a first tie layer secured adjacent to the heat sealable layer, a semi-crystalline nylon layer secured adjacent to the first tie layer, a second tie layer secured adjacent to the semi-crystalline nylon layer, and a heat sealable layer secured adjacent to the second tie layer. A fourth heat sealable layer is secured adjacent to the co-extruded layer.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: February 12, 2002
    Assignee: Westvaco Corporation
    Inventors: Kenneth John Bryden, David Hillis Hawes, Ralph Scott Peterson
  • Patent number: 6276600
    Abstract: This invention relates to a modification for a round-corner flip top cigarette pack and the like. Such structures of this type, generally, relocate the inner frame in order to improve reclosability of the pack.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: August 21, 2001
    Assignee: Westvaco Corporation
    Inventor: William Roger Rigby
  • Patent number: 6230893
    Abstract: A two piece paperboard package that houses a unit dose product on an internal slide card within an outer paperboard shell. This package may have one or more internal or external lock(s) that prevent the slide card from being pulled out without triggering some type of lock release mechanism. This package is focused around providing a child resistant, senior-friendly unit dose package that can be opened and closed numerous times and then finally disposed of.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: May 15, 2001
    Assignee: Westvaco Corporation
    Inventor: Meredith McHugh Karow
  • Patent number: 6223977
    Abstract: The envelope of the present invention is prepared from a single blank of material to include easy opening means and security features for tamper evident delivery of credit cards, debit cards and other sensitive material. The envelope structure includes a bangtail flap foldably attached to the rear panel of the envelope and folded inside the envelope, a pair of perforated lines located on each side of the rear panel for providing access to the inside bangtail flap, and a separate opening means for the closure flap.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: May 1, 2001
    Assignee: Westvaco Corporation
    Inventor: Maurice Hill
  • Patent number: 6211470
    Abstract: This invention relates to a height measurement apparatus for determining volume/density of wood chips on a conveyor. Such structures of this type, generally, employ the use of contacts that ride on top of the pile of wood chips in order to more accurately measure the volume and density of the wood chips.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: April 3, 2001
    Assignee: Westvaco Corporation
    Inventors: Robert Lynn Beran, David D. Mulligan, Lawrence Hoy James
  • Patent number: 6183603
    Abstract: This invention relates to calendering systems. Such structures of this type, generally, employ the use of hard and soft nips to provide excellent smoothness without gloss mottle.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: February 6, 2001
    Assignee: Westvaco Corporation
    Inventors: Stephen Nicholson, Steven Herman Parker, Domenick Larry Raschella, Sharon Rae Stampfl
  • Patent number: 6183128
    Abstract: This invention relates to an apparatus and method for determining paperboard thermal conductivity. Such structures of this type, generally, determine the thermal conductivity of a planar material, such as paperboard or insulating foams. The apparatus is designed to characterize the heat flow from a heated brass cylinder, through a flat paperboard sample, and into another brass cylinder. The brass cylinders are fully insulated, except at the sample interface. During the test, which is in a transient state, the hot mass loses energy, raising the temperature of the cooler mass as the two masses approach an intermediate equilibrium temperature. Knowing that the brass masses are fully insulated, except for the heat transfer interface, and knowing the physical properties of the masses, the only unknown in the mathematical model describing the experiment is the thermal conductivity, k, of the paperboard sample, which enables its determination.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: February 6, 2001
    Assignee: Westvaco Corporation
    Inventors: Robert Lynn Beran, James Arthur Rule, Jr.
  • Patent number: 6152363
    Abstract: This invention relates to the construction of sleeves for use with paperboard cups. Such structures of this type, generally, employ a paperboard sleeve backed with hot-melt glue dots which are used to improve the insulating characteristics of a paperboard cup to the same level of common polystyrene cups.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: November 28, 2000
    Assignee: Westvaco Corporation
    Inventor: James Arthur Rule, Jr.
  • Patent number: 6136075
    Abstract: This invention relates to automotive evaporative emissions canisters. Such structures of this type employ a carbon-filled foam which adds adsorptive performance to the canister without having to enlarge the canister or having to change the carbon in the canister to a higher performance carbon.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: October 24, 2000
    Assignee: Westvaco Corporation
    Inventors: Bruce Barton Bragg, Leonard Robert Lindstrom, Roger Shaw Williams
  • Patent number: 6129817
    Abstract: Paper web formation analyzers can be employed both on operating paper machines at high speed and on cut samples as a desk top unit, so as to unify formation evaluation for both situations.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: October 10, 2000
    Assignee: Westvaco Corporation
    Inventor: James Arthur Rule, Jr.
  • Patent number: 6117215
    Abstract: This invention relates to electro-magnetic rappers which are used on precipitators. Such structures of this type, generally, employ the use of a wear guide which reduces rapper liner wear.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: September 12, 2000
    Assignee: Westvaco Corporation
    Inventors: Richard Michael Erickson, Isaac Espinosa Ortiz
  • Patent number: 6114171
    Abstract: This invention relates to chemical additive management systems. Such structures of this type, generally, allow a manufacturer to determine if a chemical additive to be used will contain a chemical component or reaction product that is of toxicological concern to the end-user.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: September 5, 2000
    Assignee: Westvaco Corporation
    Inventor: James Joseph Foster
  • Patent number: 6096384
    Abstract: This invention relates to paperboard lids having a radiation cured overprint varnish. Such structures of this type, generally, protect the graphics which are printed upon the paperboard lid such that the graphics are not distorted and/or marred during the platen sealing process.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: August 1, 2000
    Assignee: Westvaco Corporation
    Inventor: Barry Gene Calvert
  • Patent number: D462904
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: September 17, 2002
    Assignee: Westvaco Corporation
    Inventors: Mark Mellon, William Roger Rigby
  • Patent number: D472808
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: April 8, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: John A. Gelardi, Richard Mazurek
  • Patent number: D472809
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: April 8, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: John A. Gelardi, Richard Mazurek
  • Patent number: D472810
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: April 8, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: John A. Gelardi, Richard Mazurek