Patents Assigned to Pactiv Corporation
  • Reclosable fasteners or zippers for use with polymeric bags
    Patent number: 7159282
    Abstract: A slider is adapted for use with a reclosable fastener for bags containing material. The reclosable fastener includes a first track and a second track. The first track includes a first profile, while the second track includes a second profile. The first and second profiles are releasably engageable to each other. At least one of the first and second profiles has an interior portion. The slider comprises a body that includes a top, a first side, a second side and a separation member on an underside of the top. The separation member is adapted to open and close the fastener and includes a slider finger that extends generally downwardly from the top. The slider finger extends into an interior portion of the first profile so as to assist in removing material trapped in the interior portion of the first profile when closing the reclosable fastener.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: January 9, 2007
    Assignee: Pactiv Corporation
    Inventors: James S. Blythe, David V. Dobreski, Daniel B. Ferrari, Steven P. Long, Toby R. Thomas, David P. Cameron
  • Methods of using an oxygen scavenger
    Patent number: 7147799
    Abstract: An oxygen scavenging packet containing an iron-based oxygen scavenger and an electrolyte is set forth in which the rate of uptake of oxygen is increased by virtue of the introduction into the packet of an oxygen uptake accelerator containing water. Methods of increasing the rate of oxygen absorption by use of the iron-based oxygen scavenging packet are also set forth.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: December 12, 2006
    Assignee: Pactiv Corporation
    Inventors: Gary R. DelDuca, Alan E. Deyo, Vinod K. Luthra, Wen P. Wu
  • Leak-resistant polymeric foam containers
    Patent number: 7124910
    Abstract: A leak-resistant hinged polymeric foam container comprises a base and a lid. The base comprises a bottom wall and a sidewall that encompasses and extends generally upwardly from the bottom wall. The sidewall comprises a first sealing area and a first generally upwardly projecting wall. The lid includes a second sealing area that is adapted to engage the first sealing area upon securing the lid and the base. The container forms a locking structure for securing the lid and the base. The base and the lid comprise polymeric foams. The container may include a hinge that hingedly connects the base to the lid.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: October 24, 2006
    Assignee: Pactiv Corporation
    Inventor: Kate E. Nordland
  • Process for attaching slider operated closure on form-fill-seal packaging machinery
    Patent number: 7114310
    Abstract: The present invention relates to a process used for packaging a product in a web of material that has a zipper attached thereto. The process includes providing a web of material having first and second edges and a zipper including first and second interlocking members. The first and second interlocking members of the zipper are interlocked together. The first interlocking member of the zipper is attached to the web at an intermediate portion of the web between the first and second edges of the web. The second interlocking member has an attachment region that is facing away from the web. One edge of the web is folded away from the zipper and toward the other edge of the web. Unit operations are performed on the zipper to create zipper segments from the zipper while the zipper is exposed. Each of the zipper segments is associated with an individual food package made from the web.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: October 3, 2006
    Assignee: Pactiv Corporation
    Inventors: Toby R. Thomas, Alexander R. Provan, Craig E. Cappel, Larry E. Benedict, Gerald R. Winiecki
  • Compartment plates having themes and method for manufacturing and packaging the same
    Patent number: 7104030
    Abstract: Arrangements of containers, cases of container packages, and methods of packaging arrangements of containers are described. According to an embodiment of the present invention, a method of packaging an arrangement of containers includes producing a plurality of containers that each have a depiction associated with a common theme, selecting from the plurality of containers to form a first group of containers and a second group of containers, and packaging the first group of containers and second group of containers for commercial distribution. The plurality of containers include a number of different depictions, and the second group of containers includes containers with different depictions than the first group of containers.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: September 12, 2006
    Assignee: Pactiv Corporation
    Inventors: David C. Schiltz, Christina M. Tranfaglia, Jeffrey L. Roberts, Edward J. Seeberger, Brad W. Dickason
  • Punch device for creating a guide notch in a polymeric fastener attached to a plastic package
    Patent number: 7100487
    Abstract: A method and apparatus for punching a guide notch in a polymeric zipper having a male and female track with respective fins. The method includes sliding the zipper into position in a punch housing and punching a guide notch into the zipper. The guide notch is defined by a plurality of edges in the zipper, which are guided out of the punch housing.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: September 5, 2006
    Assignee: Pactiv Corporation
    Inventor: Aaron L. Strand
  • Polymeric foam and scrim sheathings
    Patent number: 7100337
    Abstract: A sheathing adapted to be fastened to at least one wall supporting structure comprises at least two layers. The first layer comprises a polymeric foam layer. The second layer comprises a polymeric scrim and is located adjacent to the first layer. The second layer has a first portion and a second portion. The second portion is located near the periphery of the polymeric scrim layer. The first portion has a first machine direction (MD) scrim count number and a first transverse direction (TD) scrim count number, and the second portion has a second MD scrim count number and a second TD scrim count number. At least one of the second MD scrim count number and the second TD scrim count number is greater than the respective first MD scrim count number or the first TD scrim count number so as to inhibit failure of the scrim.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: September 5, 2006
    Assignee: PACTIV Corporation
    Inventors: Douglas S. Nordgren, John W. Lubker II, Kenneth Franklin
  • Reclosable bags with tamper evident features and methods of making the same
    Publication number: 20060189467
    Abstract: A reclosable package comprises first and second opposing body panels, a reclosable seal and a one-time breakable element. The reclosable seal extends along one end and includes first track and second tracks. The first track includes a first fin portion and a first reclosable element. The first fin portion has a first end and a second end that is further from the first reclosable element. The one-time breakable element comprises first and second sections and initially extends from the first fin portion to the second fin portion. Each of the first and second sections extends upwardly and inwardly from near the respective second ends of the first and second fin portions so as to form a generally inverted U-shaped or V-shaped cross-sectional configuration. The first and second opposing body panels are attached to respective first and second sections of the one-time breakable element.
    Type: Application
    Filed: March 15, 2006
    Publication date: August 24, 2006
    Applicant: Pactiv Corporation
    Inventors: Gary Rehwinkel, David Cameron
  • Method and apparatus for making reclosable plastic bags using a pre-applied slider-operated fastener
    Patent number: 7093409
    Abstract: A method and apparatus for making reclosable plastic bags is provided. In the method and apparatus, a fastener is attached to a moving flat web of plastic film, preferably in the direction of web movement and near the center of the web. A plurality of sliders are mounted to the fastener either before or after the fastener is attached to the flat web, but prior to conveying the web to a FFS machine. The flat web, with the slider-operated fastener already attached thereto, is then conveyed to a vertical or horizontal FFS machine where the flat web is formed into bags, and the bags are successively filled and sealed.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: August 22, 2006
    Assignee: Pactiv Corporation
    Inventors: William Mark Dutt, Toby R. Thomas
  • Container
    Patent number: D526853
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: August 22, 2006
    Assignee: Pactiv Corporation
    Inventors: Thomas J. Hayes, Scott D. Brown
  • Bowl
    Patent number: D527584
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: September 5, 2006
    Assignee: Pactiv Corporation
    Inventors: Thomas J. Hayes, Scott D. Brown
  • Cup
    Patent number: D528863
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: September 26, 2006
    Assignee: Pactiv Corporation
    Inventors: Thomas J. Hayes, Ashwin N. Shah, Jeff Wolcott, Jesse P. Carlson, David K. Orr, Michael J. Maczuzak
  • Container
    Patent number: D528867
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: September 26, 2006
    Assignee: Pactiv Corporation
    Inventors: Thomas J. Hayes, Scott D. Brown, H. Bernard Kirkland
  • Tray container with side handles and recessed lid
    Patent number: D528908
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: September 26, 2006
    Assignee: Pactiv Corporation
    Inventors: Dmitriy Faktorovich, Erin Q. Riddell
  • Food container with side compartment and engageable rim feature
    Patent number: D530982
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: October 31, 2006
    Assignee: Pactiv Corporation
    Inventor: Dmitriy Faktorovich
  • Lid for a container
    Patent number: D531029
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: October 31, 2006
    Assignee: Pactiv Corporation
    Inventors: James N. Gomoll, Timothy R. Haley
  • Lid for a container
    Patent number: D531501
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: November 7, 2006
    Assignee: Pactiv Corporation
    Inventors: James N. Gomoll, Timothy R. Haley
  • Lid for a container
    Patent number: D531502
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: November 7, 2006
    Assignee: Pactiv Corporation
    Inventors: James N. Gomoll, Timothy R. Haley
  • Slider for reclosable fastener
    Patent number: D531896
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: November 14, 2006
    Assignee: Pactiv Corporation
    Inventor: James S. Blythe
  • Bowl
    Patent number: D533031
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: December 5, 2006
    Assignee: Pactiv Corporation
    Inventors: Thomas J. Hayes, Scott D. Brown, H. Bernard Kirkland