Patents by Inventor Lawrence E. Roberts

Lawrence E. 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).

  • Die for coextruding a plurality of fluid layers
    Patent number: 8876512
    Abstract: A die for coextruding a plurality of fluid layers includes one or more distribution plates for forming relatively thick layers, and a microlayer assembly for forming a plurality of microlayers. The die further includes internal fluid passages and/or forming surfaces to allow the microlayers to assemble into a microlayered fluid mass prior to merging with the relatively thick layers from the distribution plates.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: November 4, 2014
    Assignee: Cryovac, Inc.
    Inventors: Lawrence E. Roberts, Anton L. Timmons, Bradford E. Webster
  • Die for coextruding a plurality of fluid layers
    Patent number: 8821145
    Abstract: A die for coextruding a plurality of fluid layers generally includes a primary forming stem, one or more distribution plates, and a microlayer assembly. The microlayer assembly includes a microlayer forming stem and a plurality of microlayer distribution plates.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: September 2, 2014
    Assignee: Cryovac, Inc.
    Inventors: Lawrence E Roberts, Anton L Timmons, Bradford E Webster
  • Method for coextruding a plurality of fluid layers
    Patent number: 8821775
    Abstract: A die for coextruding a plurality of fluid layers generally includes a primary forming stem, one or more distribution plates, and a microlayer assembly. The microlayer assembly includes a microlayer forming stem and a plurality of microlayer distribution plates.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: September 2, 2014
    Assignee: Cryovac, Inc.
    Inventors: Lawrence E Roberts, Anton L Timmons, Bradford E Webster
  • Die, system, and method for coextruding a plurality of fluid layers
    Publication number: 20100173031
    Abstract: A die for coextruding a plurality of fluid layers includes one or more distribution plates for forming relatively thick layers, and a microlayer assembly for forming a plurality of microlayers. The die further includes internal fluid passages and/or forming surfaces to allow the microlayers to assemble into a microlayered fluid mass prior to merging with the relatively thick layers from the distribution plates.
    Type: Application
    Filed: March 16, 2010
    Publication date: July 8, 2010
    Inventors: Lawrence E. Roberts, Anton L. Timmons, Bradford E. Webster
  • Die, system, and method for coextruding a plurality of fluid layers
    Publication number: 20100072655
    Abstract: A die for coextruding a plurality of fluid layers generally includes a primary forming stem, one or more distribution plates, and a microlayer assembly. The microlayer assembly includes a microlayer forming stem and a plurality of microlayer distribution plates.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 25, 2010
    Inventors: Lawrence E. Roberts, Anton L. Timmons, Bradford E. Webster