Patents by Inventor Stephen A. Orroth

Stephen A. Orroth 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: 20120007277
    Abstract: Methods and devices for forming a vertically-oriented multilayer laminates, for example, a vertically-oriented multilayer laminates, are provided. The laminates may be fabricated by hardenable fluids, for example, polymers that are directed along flow paths to divide, repossession, and combine streams to provide the desired laminated structure. The flow divisions and recombination may be practiced repeatedly wherein laminates have tens or even tens of thousands of individual layers may be produced. The polymers used may have comparable viscosities, for example, having viscosity ratios of less than 3. Though aspects of the invention may be used packaging, aspects of the invention may be applied to any field where laminated structures are desired.
    Type: Application
    Filed: August 5, 2009
    Publication date: January 12, 2012
    Applicants: KURARAY CO., LTD., UNIVERSITY OF MASSACHUSETTS LOWELL
    Inventors: Eiji Nakamura, Nozomu Sugoh, Tomiaki Otake, Joey Mead, Stephen Orroth, Carol Barry, Mithun Kamath, Scott Winroth
  • Patent number: 7832998
    Abstract: An extrusion apparatus is taught that employs a die adapter that is partially submerged in a heat transfer bath on a horizontal plane such that there is no air gap between the die extrusion aperture and the heat transfer bath. A porous dam is positioned between the die and the heat transfer bath. A heat insulating plate is positioned between the porous dam and the die to prevent the heat transfer medium from flowing onto the die. The heat insulating plate also prevents excessive cooling of the die tip thereby allowing the necessary precise thermal control over the extrudate skin formation to prevent melt fracture and form a low density extrudate with a smooth solid skin and inner foamed core.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: November 16, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Donald V. Beauregard, Nick R. Schott, Stephen A. Orroth, Dwayne R. Cote, Danielle L. Froio
  • Publication number: 20030221769
    Abstract: A method and apparatus for transferring holographic images and diffraction patterns from a primary film surface, which contains the original holographic image or diffraction pattern, to a secondary film or substrate.
    Type: Application
    Filed: May 23, 2002
    Publication date: December 4, 2003
    Inventors: Wilhelm P. Kutsch, Stephen A. Orroth, Jeffrey S. Gagnon
  • Patent number: 5468327
    Abstract: A braided fiber reinforced thermoplastic member is formed by a device, which comprises a braiding device for weaving thermoplastic coated fibers with second fibers onto a weaving mandrel for form a braided preform, and a heating die for melting the thermoplastic of the coated fibers of the braided preform to form a continuous matrix of thermoplastic between the coated fibers and the second fibers. A method for forming a fiber reinforced thermoplastic member comprises coating carbon fibers with a thermoplastic melt, cooling the thermoplastic coated carbon fibers, braiding the coated carbon fibers onto a weaving mandrel with Kevlar.RTM. bias fibers to form a braided preform, and drawing the braided preform through a heating die.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: November 21, 1995
    Assignee: University of Massachusetts Lowell
    Inventors: Andrew Pawlowicz, Craig Douglas, Amad Tayebi, Stephen Orroth