Patents by Inventor William P. Roberts

William P. Roberts 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: 10617778
    Abstract: The presently disclosed subject matter provides a system and method for sterilizing a wide variety of products. Specifically, in some embodiments, the presently disclosed subject matter is directed to a package that is capable of self-sterilizing by initiating sterilizing conditions inside the package interior without the necessity of being treated with an externally-supplied sterilizing medium. Particularly, the disclosed package includes at least one dual-layer lid that comprises inner and outer layers and an interstitial space that houses a sterilizing gas-producing component.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: April 14, 2020
    Assignee: Cryovac, Inc.
    Inventors: William P. Roberts, Joshua D. Wofford, Charles D. Robnett
  • Publication number: 20180272019
    Abstract: The presently disclosed subject matter provides a system and method for sterilizing a wide variety of products. Specifically, in some embodiments, the presently disclosed subject matter is directed to a package that is capable of self-sterilizing by initiating sterilizing conditions inside the package interior without the necessity of being treated with an externally-supplied sterilizing medium. Particularly, the disclosed package includes at least one dual-layer lid that comprises inner and outer layers and an interstitial space that houses a sterilizing gas-producing component.
    Type: Application
    Filed: October 29, 2015
    Publication date: September 27, 2018
    Inventors: William P. Roberts, Joshua D. Wofford, Charles D. Robnett
  • Patent number: 9291433
    Abstract: A composite assembly useful for resisting the penetration of projectiles. The composite assembly comprises a plurality of ballistic fabric layers and a plurality of distinct films. The plurality of distinct films is adjacent the plurality of ballistic fabric layers. Each distinct film of the plurality of distinct films comprises thermoplastic polymer. Each distinct film of the plurality of distinct films has an elongational strength index of at least 800 psi.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: March 22, 2016
    Assignee: Cryovac, Inc.
    Inventors: Stephen F. Compton, Richard M. Dayrit, William P. Roberts, Nathanael Miranda
  • Publication number: 20130213208
    Abstract: A composite assembly useful for resisting the penetration of projectiles. The composite assembly comprises a plurality of ballistic fabric layers and a plurality of distinct films. The plurality of distinct films is adjacent the plurality of ballistic fabric layers. Each distinct film of the plurality of distinct films comprises thermoplastic polymer. Each distinct film of the plurality of distinct films has an elongational strength index of at least 800 psi.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 22, 2013
    Applicant: CRYOVAC, INC.
    Inventors: Stephen F. Compton, Richard M. Dayrit, William P. Roberts, Nathanael Miranda
  • Publication number: 20120164025
    Abstract: The presently disclosed subject matter provides a package and methods for disinfecting a wide variety of microbiologically contaminated products. Particularly, the disclosed package comprises a package to house the product to be disinfected and a disinfecting gas generator positioned within the interior of the package. The materials used to construct the package and/or the gas generator comprises an active agent that neutralizes the disinfecting gas from the interior of the package. The reactivity of the active agent is balanced such that the rate of neutralizing is lower than the rate of disinfecting gas release. As a result, the disinfecting gas has time to function fully before it is neutralized. Thus, when a user opens the package at the end of the disinfecting period, exposure to the disinfecting gas is minimized or eliminated.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 28, 2012
    Applicant: Sealed Air Corporation (US)
    Inventors: H. Walker Stockley, III, Michael D. Grah, Elizabeth R. Gooden, Denning R. Saum, Charles E. Marshall, III, William P. Roberts, Stephen F. Compton
  • Patent number: 7551448
    Abstract: The invention is directed to a method and apparatus for electrically interconnecting multiple electronic components together by disposing the electronic components between two opposing plurality of protrusions that hold the electrical components together and establish an electrical connection therebetween. Each plurality of protrusions may be disposed in an offset arrangement with the opposing protrusions. The opposing protrusions cause the electronic components to bend and adopt a deflected geometry when they are positioned between the opposing sets of protrusions. This bending results in the electronic components being biased against each other so that electrical contacts on each electronic component may be held together and thereby form an electrical connection. As a result, the opposing sets of protrusions can be used to electrically interconnect a plurality of electrical components in the absence of clamping, adhesion, soldering, or pinching.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: June 23, 2009
    Assignee: Cryovac, Inc.
    Inventor: William P. Roberts
  • Patent number: 6884480
    Abstract: Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, high permeability, etc. The homogeneous alpha-olefin/vinyl aromatic copolymer may be present in a monolayer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers thereto.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: April 26, 2005
    Assignee: Cryovac, Inc.
    Inventors: John G. Bradfute, Blaine C. Childress, Marvin R. Havens, C. Michael Lulham, Ronald D. Moffitt, Martindale Nelson, Lawrence R. Norpoth, William P. Roberts, Gloria G. Toney, George D. Wofford
  • Patent number: 6872462
    Abstract: A film includes a core layer including a homogeneous random alpha-olefin/cyclic olefin copolymer; and first and second outer layers including an olefinic polymer; the film having Young's modulus between about 50,000 and about 200,000 psi, free shrink between about 10% and about 80% at 240° F., and shrink tension of less than about 400 psi, or a shrink force of between about 20 and about 180 grams, at 240° F. First and second intermediate layers including an ethylene copolymer having a melt index less than about 2 g/10 minutes can be optionally included. Alternatively, a film includes a core layer including an ethylene copolymer having melt index less than about 2 g/10 minutes; first and second intermediate layers including a homogeneous random alpha-olefin/cyclic olefin copolymer; and first and second outer layers including an olefinic polymer; the film having properties as disclosed above.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: March 29, 2005
    Assignee: Cryovac, Inc.
    Inventors: William P. Roberts, Ronald D. Moffitt, Richard M. Dayrit, Blaine C. Childress, William J. Gauthier, W. Scott Lambert
  • Patent number: 6859672
    Abstract: A method of linking source units of food with product items that include at least a portion of one or more of the source units of food, where a conversion process produces a plurality of product items from a plurality of source units (e.g., at a meat processing plant). A conversion algorithm is created to estimate within a desired confidence level a range of the amount of time required by the conversion process to produce a product item from one or more of the source units of food. A range of an amount of conversion time required to produce a selected product item is estimated by applying the conversion algorithm. The estimated range amount of conversion time for the selected product item is subtracted from the time of exit from the conversion process for the selected product item to generate an estimated time range of entry. Each source unit having a time of entry into the conversion process within the estimated time range of entry is identified.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: February 22, 2005
    Assignee: Cryovac, Inc.
    Inventors: William P. Roberts, Michael Esakov
  • Publication number: 20040142195
    Abstract: A film includes a core layer including a homogeneous random alpha-olefin/cyclic olefin copolymer; and first and second outer layers including an olefinic polymer; the film having Young's modulus between about 50,000 and about 200,000 psi, free shrink between about 10% and about 80% at 240° F., and shrink tension of less than about 400 psi, or a shrink force of between about 20 and about 180 grams, at 240° F. First and second intermediate layers including an ethylene copolymer having a melt index less than about 2 g/10 minutes can be optionally included. Alternatively, a film includes a core layer including an ethylene copolymer having melt index less than about 2 g/10 minutes; first and second intermediate layers including a homogeneous random alpha-olefin/cyclic olefin copolymer; and first and second outer layers including an olefinic polymer; the film having properties as disclosed above.
    Type: Application
    Filed: August 5, 2003
    Publication date: July 22, 2004
    Inventors: William P. Roberts, Ronald D. Moffitt, Richard M. Dayrit, Blaine C. Childress, William J. Gauthier, W. Scott Lambert
  • Patent number: 6742703
    Abstract: A mail collection apparatus comprising a housing defining an access opening. An access door is supported by the housing. The access door is moveable between a door open position, providing access to the housing interior space through the access opening, and a door closed position blocking the access opening. A chute is supported by the housing. The chute comprises an inlet end defining a chute inlet opening adapted for receiving mail and a chute outlet end defining a chute outlet opening opposite the inlet end. A bag comprises an inlet portion defining a bag inlet opening.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: June 1, 2004
    Assignee: Sealed Air Corporation
    Inventors: Michael D. Esakov, Charles Kannankeril, Lawrence J. Pillote, Atul Arora, William P. Roberts
  • Publication number: 20030222133
    Abstract: A mail collection apparatus comprising a housing defining an access opening. An access door is supported by the housing. The access door is moveable between a door open position, providing access to the housing interior space through the access opening, and a door closed position blocking the access opening. A chute is supported by the housing. The chute comprises an inlet end defining a chute inlet opening adapted for receiving mail and a chute outlet end defining a chute outlet opening opposite the inlet end. A bag comprises an inlet portion defining a bag inlet opening.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventors: Michael D. Esakov, Charles Kannankeril, Lawrence J. Pillote, Atul Arora, William P. Roberts
  • Publication number: 20030069772
    Abstract: A method of linking source units of food with product items that include at least a portion of one or more of the source units of food, where a conversion process produces a plurality of product items from a plurality of source units (e.g., at a meat processing plant). A conversion algorithm is created to estimate within a desired confidence level a range of the amount of time required by the conversion process to produce a product item from one or more of the source units of food. A range of an amount of conversion time required to produce a selected product item is estimated by applying the conversion algorithm. The estimated range amount of conversion time for the selected product item is subtracted from the time of exit from the conversion process for the selected product item to generate an estimated time range of entry. Each source unit having a time of entry into the conversion process within the estimated time range of entry is identified.
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Inventors: William P. Roberts, Michael Esakov
  • Publication number: 20020025394
    Abstract: Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, high permeability, etc. The homogeneous alpha-olefin/vinyl aromatic copolymer may be present in a monolayer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers thereto.
    Type: Application
    Filed: September 11, 2001
    Publication date: February 28, 2002
    Inventors: John G. Bradfute, Blaine C. Childress, Marvin R. Havens, C. Michael Lulham, Ronald D. Moffitt, Martindale Nelson, Lawrence R. Norpoth, William P. Roberts, Gloria G. Toney, George D. Wofford
  • Patent number: 6214477
    Abstract: A film includes a first layer including polyvinyl chloride; and a second layer including a material such as anhydride functionalized polyolefin, ethylene/vinyl acetate copolymer having a vinyl acetate content of between 10% and 35%, ethylene/alkyl acrylate copolymer having an alkyl acrylate content of between 10% and 30%, ethylene/alkyl methacrylate copolymer having an alkyl methacrylate content of between 10% and 30%, ethylene/acrylic acid copolymer having an acrylic acid content of between 10% and 30%, ethylene/methacrylic acid copolymer having a methacrylic acid content of between 10% and 30%, and ionomer. A layer of polyolefin, and/or an additional layer including any of the materials of the second layer, or polyvinyl chloride, can be optionally included in a film of the invention.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: April 10, 2001
    Assignee: Cryovac, Inc.
    Inventors: George D. Wofford, William P. Roberts
  • Patent number: 5840422
    Abstract: A film suitable for packaging medical solutions and other pH sensitive products wherein the product pH is controlled by including an ionomer resin as a core layer, strength layer, or other distinct intermediate layer positioned between a sealant layer and a vinyl carboxylate copolymer containing layer.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: November 24, 1998
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Walter B. Mueller, Cynthia L. Ebner, William P. Roberts
  • Patent number: 5700554
    Abstract: An article useful for packaging oxygen-sensitive products is disclosed. The article is a single or multi-layer article capable of enveloping the oxygen sensitive product. The article has at least one layer which contains a composition composed of an ethylenically unsaturated hydrocarbon polymer and a transition metal salt. The layer is capable of scavenging oxygen at a rate of at least 1 cc oxygen per square meter per day and has a capacity of at least 250 cc oxygen per square meter per mil thickness of the layer.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: December 23, 1997
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan, Cynthia L. Ebner
  • Patent number: 5529833
    Abstract: Products and film structures using the oxygen scavengers, are disclosed. Such products demonstrate enhanced shelf stability of foodstuffs and reduced sensitivity to humidity and temperature changes.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: June 25, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, Charles R. Morgan, William P. Roberts, Andrew W. VanPutte
  • Patent number: 5498364
    Abstract: A method of initiating oxygen scavenging by rigid or semi-rigid articles which comprise oxidizable organic compounds and transition metal catalysts is disclosed. The method comprises initiating scavenging by exposing the composition, etc., to radiation. The radiation exposure is preferably electron beam or ultraviolet light and is preferably used on oxygen scavenging compositions which comprise a substituted or unsubstituted ethylenically unsaturated hydrocarbon and a transition metal catalyst. Inclusion of a photoinitiator or antioxidant in the scavenging composition is also preferred to facilitate and/or control the composition's scavenging properties. The method can be used for initiating scavenging in packaging layers or articles for oxygen sensitive products such as food and beverage.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: March 12, 1996
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan
  • Patent number: 5445893
    Abstract: The present invention is directed to a film suitable for packaging medical solutions and other pH sensitive products. Product pH is controlled by including an ionomer resin blended with a vinyl carboxylate copolymer in a film layer or adhesive. Alternatively, the ionomer may be present as either a core layer, strength layer, or other distinct layer positioned between the sealant layer and the vinyl carboxylate copolymer containing layer.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: August 29, 1995
    Assignee: W.R. Grace & Co.-Conn
    Inventors: Walter B. Mueller, Cynthia L. Ebner, William P. Roberts