Patents by Inventor Duane L. McDonald

Duane L. McDonald has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10286593
    Abstract: A thermoformed article that is formed from a polymeric sheet having a thickness of from about 0.1 to about 100 millimeters is provided. The polymeric sheet contains a thermoplastic composition that includes a continuous phase that includes a matrix polymer. A microinclusion additive and nanoinclusion additive are dispersed within the continuous phase in the form of discrete domains, and a porous network is defined in the composition that includes a plurality of nanopores having an average cross-sectional dimension of about 800 nanometers or less.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: May 14, 2019
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Vasily A. Topolkaraev, Ryan J. McEneany, Brent M. Thompson, Duane L. McDonald
  • Publication number: 20170080628
    Abstract: A thermoformed article that is formed from a polymeric sheet having a thickness of from about 0.1 to about 100 millimeters is provided. The polymeric sheet contains a thermoplastic composition that includes a continuous phase that includes a matrix polymer. A microinclusion additive and nanoinclusion additive are dispersed within the continuous phase in the form of discrete domains, and a porous network is defined in the composition that includes a plurality of nanopores having an average cross-sectional dimension of about 800 nanometers or less.
    Type: Application
    Filed: June 4, 2015
    Publication date: March 23, 2017
    Inventors: Vasily A. Topolkaraev, Ryan J. McEneany, Brent M. Thompson, Duane L. McDonald
  • Patent number: 8408419
    Abstract: A sheet dispenser is defined by at least six panels having outwardly facing surfaces, wherein at least one of the panels is oriented at an oblique angle with respect to the other panels. Sheets may be dispensed from an opening located on the oblique surface. The sheet dispenser may sit on a surface such as a countertop for dispensing, or may be placed between a wall and other structure attached to the wall such as a towel bar. Furthermore, the sheet dispenser may be hung from a structure using a strap attached to the towel dispenser.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: April 2, 2013
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Carl G. Rippl, Sarah L. Christoffel, George I. Nukuto, Maggie VanderHeiden Berger, Jonathan K. Arendt, Duane L. McDonald, James D. McManus, Marci E. Sojka
  • Patent number: 8118166
    Abstract: A package enclosing a single disposable absorbent article. The package having an opening element.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: February 21, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Duane L. McDonald
  • Publication number: 20090236358
    Abstract: A sheet dispenser is defined by at least six panels having outwardly facing surfaces, wherein at least one of the panels is oriented at an oblique angle with respect to the other panels. Sheets may be dispensed from an opening located on the oblique surface. The sheet dispenser may sit on a surface such as a countertop for dispensing, or may be placed between a wall and other structure attached to the wall such as a towel bar. Furthermore, the sheet dispenser may be hung from a structure using a strap attached to the towel dispenser.
    Type: Application
    Filed: June 26, 2008
    Publication date: September 24, 2009
    Inventors: Carl G. Rippl, Sarah L. Christoffel, George I. Nukuto, Maggie VanderHeiden Berger, Jonathan K. Arendt, Duane L. McDonald, James D. McManus, Marci E. Sojka
  • Publication number: 20040172002
    Abstract: A package enclosing a single disposable absorbent article. The single disposable absorbent article is in a compact configuration and situated within the package.
    Type: Application
    Filed: December 31, 2003
    Publication date: September 2, 2004
    Inventors: Denise J. Nelson, Stanley R. Kellenberger, Duane L. McDonald, Fred R. Radwanski, Thomas H. Roessler, Roman A. Weyenberg, Paula C. Winkel
  • Publication number: 20040168947
    Abstract: A package enclosing a single disposable absorbent article. The package having an opening element.
    Type: Application
    Filed: December 31, 2003
    Publication date: September 2, 2004
    Inventor: Duane L. McDonald
  • Publication number: 20040167489
    Abstract: A disposable absorbent article which is compactly packaged is provided, which has a folded configuration and an unfolded configuration. A ratio between the folded configuration and the unfolded configuration is less than 0.09.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 26, 2004
    Inventors: Stanley R. Kellenberger, Fred R. Radwanski, Thomas Harold Roessler, Roman A. Weyenberg, Herb F. Velazquez, Duane L. McDonald, Denise J. Nelson
  • Patent number: 5461216
    Abstract: A package for use in microwave ovens is disclosed in its preferred form of a flexible, tubular bag (18) including expandable side walls (26) interconnected between bottom and top walls (20, 22), an openable end (28), and a permanent end wall (24). The side walls (26) include pleats (26a, 26b, 26c, 26d) which are folded in a collapsed condition of the bag (18) and expand due to internal expansion forces generated by the popping of kernels and the creation of water vapor. In a preferred form, the bag (18) is formed from a single layer of flexible, greaseproof paper of highly refined raw fibers of 100% chemical softwood pulp and having a basis weight in the order of 35 lb./ream. The single layer of paper forming the bag (18) provides greaseproof properties in storage, transportation, and cooking throughout the thickness of the paper to prevent wicking and leaking of grease or oil through the single layer.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: October 24, 1995
    Assignee: General Mills, Inc.
    Inventor: Duane L. McDonald
  • Patent number: 5189272
    Abstract: A package for use in microwave ovens is disclosed in its preferred form of a flexible, tubular bag (18) including expandable side walls (26) interconnected between bottom and top walls (20, 22). The side walls (26) include pleats (26a, 26b, 26c, 26d) which are folded in a collapsed condition of the bag (18) and expand due to internal expansion forces generated by the popping of kernels and the creation of water vapor. The openable end (28) opposite the permanent end wall (24) of the bag (18) is formed by V-shaped adhesive strips (34, 36) located between the bottom and top walls (20, 22) and the pleats (26a, 26b, 26c, 26d).
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: February 23, 1993
    Assignee: General Mills, Inc.
    Inventors: Duane L. McDonald, Barbara E. Morrissette
  • Patent number: 4870233
    Abstract: A metal tray has its inner and outer surfaces coated with a plastic material. Within the tray is a first susceptor unit which includes a layer of corrugated paperboard composed of A-flutes secured to the underside of a substrate having a metallized foil secured to its upper side. A food item to be heated is supported on the first susceptor unit. A second susceptor unit overlies the food item, the second susceptor unit having a downturned flange inserted between one side of the tray and one side of the food item.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: September 26, 1989
    Assignee: General Mills, Inc.
    Inventors: Duane L. McDonald, Lynn H. Brown
  • Patent number: 4703148
    Abstract: Disclosed are packaged frozen food articles which are adapted to be heated by microwave. The articles include a frozen food item and a microwave heating package. The packages include a tray and an overwrapped paperboard carton having a microwave shield and having a plurality of windows in the sleeve. The package further includes an opposed pair of spaced parallel upper and lower microwave susceptor heating cards each comprising an inner heating layer mounted on a mounting board, and spacers for spacing the heating cards from the microwave shield such as a spaced pair of corrugated paperboard spacers intermediate the microwave shield and the heating cards. The heating layers are in direct contact with the food items and can comprise a metallized film. The microwave shield can be a foil such as aluminum foil.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: October 27, 1987
    Assignee: General Mills, Inc.
    Inventors: Barry S. Mikulski, Duane L. McDonald, Lynn B. Deffenbaugh