Patents by Inventor Richard Tedford

Richard Tedford 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).

  • Publication number: 20160000243
    Abstract: Thermoformed fluid material container closures, such as reclosable dome-shaped beverage lids, having an inner “plug fit” securement groove for removably securing the fluid material container closure to an upper rim of a beverage cup and which have a drip rate of about 1 g or less per 20 seconds. These closures such as beverage lids are made by a thermoforming process from a thermoformable web (e.g., sheet) to provide a generally dome-shaped upper fluid material-dispensing portion from polypropylene polymers having a flexural modulus of at least about 230,000 kpsi and in which a fluid-dispensing orifice in formed in the fluid material-dispensing portion which is substantially aligned with the machine direction (MD) of the thermoformable web.
    Type: Application
    Filed: June 8, 2015
    Publication date: January 7, 2016
    Inventor: Richard A. Tedford, JR.
  • Publication number: 20140091490
    Abstract: A process for thermoforming a discrete section of an amorphous pliable thermoplastic sheet in a temperature-controlled thermoforming mold to provide a discrete thermoformed section having one or more discrete shaped articles formed therein and to heat the shaped articles to a temperature below the Tm but above the Tg of the polylactic acid polymer in the sheet to induce crystallization of the polylactic acid polymer in the shaped articles. While unconstrained by the thermoforming mold, the discrete thermoformed section is tempered at a temperature such that the polylactic acid polymer in the shaped articles achieves a degree of crystallization of at least about 5% (as measured by X-ray diffraction) to thereby increase heat resistance of the shaped articles.
    Type: Application
    Filed: October 3, 2012
    Publication date: April 3, 2014
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventors: Richard A. Tedford, Ganesan Kumar, Thomas Christie
  • Patent number: 8445604
    Abstract: The present invention relates to articles made of a thermoformable resin comprising a biodegradable polymer having polybutylene succinate (PBS) via extrusion using an extruder which comprise: a biodegradable polymer having: (a) a Ts value of up to about 160° C. (e.g., in the range of from about 50° to about 150° C.); (b) a heat distortion index of up to about 150° C. (for example, up to about 120° C.); and (c) optionally, a Tm in the range of from about 70° to about 160° C. (e.g., in the range of from about 80° to about 150° C.). Thermoformed article such as a food or beverage cup, lid, cutlery item, foodservice item, molded tray, food storage container, etc provide the ability to resist deformation during higher temperature conditions that may occur during storage and distribution.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: May 21, 2013
    Assignee: International Paper Company
    Inventors: Wei Li, Richard A Tedford, Bruce J Thoman, Thomas Robert Christie
  • Publication number: 20130001289
    Abstract: An open-top cup comprises a bottom wall and a side wall having inner and outer surfaces extending upwardly from the bottom wall. An outwardly curled lip formed on the free edge of the side wall. A respective insulative layer having a moisture absorbing characteristic and a respective graphic layer are attached to the outer surface of the side wall. The insulative layer is sandwiched between the outer surface of the side wall and the graphic layer.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventor: Richard A. Tedford
  • Patent number: 8231954
    Abstract: The present invention is directed to a method of producing a thermoformable composite by crosslinking PHA and PLA together in the presence of an additive to produce PHA and PLA blend and resins having: (a) a Ts value of up to about 180° C.; and (b) a heat distortion index of up to about 160° C. The thermoformable composite is used to make a food or beverage cup, lid, cutlery item, foodservice item, molded tray, or food storage container. The thermoformable composite comprises from about 5% to about 95% by weight of polylactic acid (PLA), from about 5% to about 95% by weight polyhydroxyalkanoate (PHA) polymer, and from about 0.01% to about 60% additives wherein the PLA and PHAs being crosslink together by intermolecular means to enhance performance and processability.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: July 31, 2012
    Assignee: International Paper Co.
    Inventors: Wei Li, Richard A Tedford, Bruce J Thoman
  • Publication number: 20120097602
    Abstract: A biodegradable beverage filter cartridge having: a biodegradable fluid permeable beverage filter component; an openable lid component of biodegradable and/or recyclable material; and a beverage receptacle component composed of an exterior biodegradable heat-resistant structural polymer layer, an inner protective seal layer of biodegradable polymer, and an intermediate biodegradable and/or recyclable oxygen barrier layer between the exterior and inner layers and provided with a pierceable and/or a liquid permeable base portion and a sidewall portion extending generally upwardly from the base portion for securing the lid component to the beverage receptacle component and defining a beverage filter component receptacle area for receiving the beverage filter component. The cartridge may optionally include beverage material positioned within a beverage material receiving area of the beverage filter component.
    Type: Application
    Filed: September 16, 2011
    Publication date: April 26, 2012
    Applicant: INTERNATIONAL PAPER COMPANY
    Inventor: RICHARD A. TEDFORD
  • Publication number: 20110135863
    Abstract: The present invention is directed to a method of producing a themoformable composite by crosslinking PHA and PLA together in the presence of an additive to produce PHA and PLA blend and resins having: (a) a Ts value of up to about 180° C.; and (b) a heat distortion index of up to about 160° C. The themoformable composite is used to make a food or beverage cup, lid, cutlery item, foodservice item, molded tray, or food storage container. The thermoformable composite comprises from about 5% to about 95% by weight of polylactic acid (PLA), from about 5% to about 95% by weight polyhydroxyalkanoate (PHA) polymer, and from about 0.
    Type: Application
    Filed: November 17, 2010
    Publication date: June 9, 2011
    Applicant: International Paper Company
    Inventors: Wei LI, Richard A. TEDFORD, Bruce J. THOMAN
  • Publication number: 20110136978
    Abstract: The present invention relates to articles made of a thermoformable resin comprising a biodegradable polymer having polybutylene succinate (PBS) via extrusion using an extruder which comprise: a biodegradable polymer having: (a) a Ts value of up to about 160° C. (e.g., in the range of from about 50° to about 150° C.); (b) a heat distortion index of up to about 150° C. (for example, up to about 120° C.); and (c) optionally, a Tm in the range of from about 70° to about 160° C. (e.g., in the range of from about 80° to about 150° C.). Thermoformed article such as a food or beverage cup, lid, cutlery item, foodservice item, molded tray, food storage container, etc provide the ability to resist deformation during higher temperature conditions that may occur during storage and distribution.
    Type: Application
    Filed: November 17, 2010
    Publication date: June 9, 2011
    Applicant: International Paper Company
    Inventors: WEI LI, Richard A. Tedford, Bruce J. Thoman, Thomas Robert Christie
  • Publication number: 20100200647
    Abstract: A paperboard cup holder for use with a hot coffee cup, the cup being tapered as in the form of a cross section of a right circular cone of relatively small taper angle. Such cups are generally of paperboard or plastic and are often used in vending machines and fast food retail outlets for serving hot coffee. The holder is formed from a flat, generally arcuate unitary paperboard blank having a convex outer edge and a concave inner edge. The arcuate length of the blank is substantially the same as the mid circumference of the cup, and the ends of the blank are glued together to form an annular holder. The upper edge of the blank integrally carries a plurality of flaps which bend 180 degrees to as to lie parallel with the main portion of the blank. The inter and outer surfaces of the paperboard blank are embossed, including the flaps. When the holder is slid onto a cup, the flaps are sandwiched between the outer (hot) surface of the cup and the main portion of the holder.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 12, 2010
    Applicant: International Paper Company
    Inventors: Richard A. Tedford, William Loren Brown
  • Publication number: 20100187296
    Abstract: A container according to a preferred embodiment of the present invention provides an inner wall and an outer wall wrapped therearound so as to define a double-wall container construction. A plurality of spacer elements are interposed between the inner and the outer walls so as to maintain a minimum thickness of an air space defined therebetween.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: International Paper Company
    Inventors: Craig R. Puls, Jozef Milewski, Bruce J. Thoman, Wei Li, Richard A. Tedford
  • Patent number: 7717325
    Abstract: A container according to a preferred embodiment of the present invention provides an inner wall and an outer wall wrapped therearound so as to define a double-wall container construction. A plurality of spacer elements are interposed between the inner and the outer walls so as to maintain a minimum thickness of an air space defined therebetween. In normal use conditions, the spacer elements do not contact the inner wall; however, the spacer elements prevent the outer wall from contacting the inner wall during non-standard use conditions.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: May 18, 2010
    Assignee: International Paper Company
    Inventors: Craig R. Puls, Jozef Milewski, Bruce J. Thoman, Wei Li, Richard A. Tedford
  • Patent number: 7678444
    Abstract: The present invention provides articles comprising a thermoformable composite comprising: a core comprising a renewable polymer having: (a) a Ts value of up to about 90° C.; and (b) a heat distortion index of up to about 90° C.; and a heat-resistant outer layer substantially surrounding the core and comprising a heat-resistant polymer having: (a) a Ts of greater than about 60° C.; and (b) a heat distortion index of greater than about 50° C.; wherein the renewable polymer comprises at least about 60% by weight of the composite, and wherein the heat-resistant polymer has a Ts value and heat distortion index greater than that of the renewable polymer. The present invention also provides methods for coextruding the heat-resistant polymer outer layer and renewable polymer core to provide a thermoformable composite.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: March 16, 2010
    Assignee: International Paper Company
    Inventors: Richard A. Tedford, Jr., Wei Li
  • Publication number: 20090274920
    Abstract: The present invention provides a biodegradable polymer composition useful for manufacturing biodegradable in which, the process comprising: (1) providing a renewable polymer and/or natural fiber having: (a) a Ts value of up to about 90° C.; and (b) a heat distortion index of up to about 90° C.; (2) providing a heat-resistant polymer having: (a) a Ts of greater than about 60° C.; and (b) a heat distortion index greater than about 50° C., wherein the Ts value and heat distortion index of the heat-resistant polymer is greater than that of the renewable polymer and/or natural fiber; and (3) coextruding the heat-resistant polymer and the renewable polymer to provide a thermoformable composite comprising a core comprising the renewable polymer and/or natural fiber, wherein the renewable polymer and/or natural fiber comprises at least about 50% by weight of the composite and a heat-resistant outer layer comprising the heat-resistant polymer which substantially surrounds the core.
    Type: Application
    Filed: May 4, 2009
    Publication date: November 5, 2009
    Applicant: International Paper Company
    Inventors: Wei Li, Zheng Tan, Thomas Robert Christie, Bruce J. Thoman, Richard A. Tedford, Mark Fagan
  • Patent number: 7568591
    Abstract: A lid is provided for use as a cover on a beverage container or other dispensing device, wherein the lid includes a dispensing spout therein for dispensing of the container contents therefrom. A flexible connector arm extends around at least a portion of the periphery of the lid and includes a fixed end fixedly attached to the lid at a first arcuate position thereof and a free end frangibly connected to the lid by a frangible tab located at a second arcuate position of the lid. The free end of the connector arm can be detached from the lid by tearing along a tear line provided in the connector arm spaced radially outwardly from the frangible tab. In this manner, detaching of connector arm from the lid occurs by a discrete tear line propagated through the connector arm, rather than through the lid flange, thereby allowing for detachment of the connector arm from the lid without compromising the integrity of the seal between the lid and the cup.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: August 4, 2009
    Assignee: International Paper
    Inventor: Richard A. Tedford, Jr.
  • Publication number: 20090155611
    Abstract: The present invention provides articles comprising a thermoformable composite comprising: a core comprising a renewable polymer having: (a) a Ts value of up to about 90° C.; and (b) a heat distortion index of up to about 90° C.; and a heat-resistant outer layer substantially surrounding the core and comprising a heat-resistant polymer having: (a) a Ts of greater than about 60° C.; and (b) a heat distortion index of greater than about 50° C.; wherein the renewable polymer comprises at least about 60% by weight of the composite, and wherein the heat-resistant polymer has a Ts value and heat distortion index greater than that of the renewable polymer. The present invention also provides methods for coextruding the heat-resistant polymer outer layer and renewable polymer core to provide a thermoformable composite.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 18, 2009
    Inventors: Richard A. Tedford, JR., Wei Li
  • Publication number: 20080078825
    Abstract: A container according to a preferred embodiment of the present invention provides an inner wall and an outer wall wrapped therearound so as to define a double-wall container construction. A plurality of spacer elements are interposed between the inner and the outer walls so as to maintain a minimum thickness of an air space defined therebetween. In normal use conditions, the spacer elements do not contact the inner wall; however, the spacer elements prevent the outer wall from contacting the inner wall during non-standard use conditions.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 3, 2008
    Inventors: Craig Puls, Jozef Milewski, Bruce Thoman, Wei Li, Richard Tedford
  • Patent number: 7275653
    Abstract: A reclosable lid for use with an open-top container is disclosed. The reclosable container lid comprises a cover including an annular top wall having a channel integrally formed therein. A drinking spout in the top wall is adapted to dispense the contents of the container. The reclosable lid uses a slide lock closure feature that prevents spillage during transportation of the open-top container and easy access for opening and drinking. The slide lock closure is configured to engage with the channel to slide longitudinally along the channel between a first position and a second position. In the first position, the slide lock closure opens the drinking spout and in the second position, the slide lock closure closes the drinking spout to inhibit dispensing the contents of the container.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: October 2, 2007
    Assignee: International Paper Company
    Inventor: Richard A. Tedford, Jr.
  • Patent number: 7229678
    Abstract: A barrier laminate packaging material comprising from its outermost surface to the innermost surface contacting the contents of the container to be prepared therefrom, a first exterior layer of a low density polyethylene polymer, a paperboard substrate, a first interior layer laminate coating of nylon with a tie resin layer, a blown film layer comprising a first low density polyethylene polymer layer, a tie layer, a first interior layer of EVOH, a second tie layer, a second interior layer of EVOH, a third tie layer and a second interior layer of low density polyethylene polymer, and an innermost product contacting layer of low density polyethylene.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: June 12, 2007
    Assignee: Evergreen Packaging Inc.
    Inventors: Tricia Susan Reighard, Christopher S. Cleveland, Richard A. Tedford, Jr.
  • Lid
    Patent number: D591595
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: May 5, 2009
    Assignee: International Paper Company
    Inventor: Richard A. Tedford, Jr.
  • Lid
    Patent number: D592056
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: May 12, 2009
    Assignee: International Paper Company
    Inventor: Richard A. Tedford, Jr.