Patents by Inventor Gregory Duncan

Gregory Duncan 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: 20070277609
    Abstract: A high frequency flexure-based dynamometer (10) for measuring vibrations to use in determining cutting forces in a tool. The dynamometer device (10) may operate within a preselected high frequency range while measuring cutting forces less than about 1 N. The dynamometer (10) may include two coupled flexures that interact to produce vibration modes at the edge of a selected bandwidth of interest. These modes may produce a frequency response function within the desired frequency band that has a magnified response and is substantially constant. The dynamometer (10) may include a workpiece (38) mounted to one of the two flexures (12) and a one or more precision accelerometers (30) mounted to the first or second flexures. Finite element analysis may be used to optimize the flexure design.
    Type: Application
    Filed: September 29, 2005
    Publication date: December 6, 2007
    Inventors: Tony Schmitz, Gregory Duncan, John Ziegert
  • Publication number: 20070182990
    Abstract: The reproduction of a requested source document in a requested available form (including electronic, print, audio and Braille) is disclosed. At a server, for each one of a plurality of documents at least one access pathway is applied to a marked-up form of the document. The access pathways define discrete parts of the document. A fragment of the marked-up document is generated for each said access pathway for each available form. A requested one or more parts of a source document is generated in a requested form from the respective stored fragments. The fragments are transmitted to the requesting customer for local reproduction.
    Type: Application
    Filed: June 10, 2005
    Publication date: August 9, 2007
    Applicant: Objective Systems Pty Limited
    Inventors: Christopher Stephen, Gregory Duncan
  • Publication number: 20070157553
    Abstract: The present invention relates to an apparatus for packaging contact lenses. The apparatus includes a compliant head, improved heater and improved heat seal die.
    Type: Application
    Filed: December 12, 2006
    Publication date: July 12, 2007
    Inventors: Leslie Voss, Gregory Duncan, Ravi Sanka, Gary Hall, Mark Schlagel, Michael Widman
  • Publication number: 20070088456
    Abstract: A method for predicting a tool point response of a spindle-holder-tool assembly to be used for high-speed machining applications is provided. The method includes determining direct and cross displacement-to-force receptances of a standard holder secured in the spindle based upon measurements of displacement-to-force taken at different rotating speeds of the spindle. The method also includes determining direct receptances at a free end of the standard holder based upon the determined direct and cross displacement-to-force receptances of the standard holder. Additionally, the method includes performing an inverse receptance coupling to simulate a decomposition of the standard holder into multiple subassemblies, the subassemblies including a spindle-holder base subassembly and an extended holder subassembly. The method further includes determining spindle-holder base subassembly receptances based upon the simulated decomposition of the standard holder.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 19, 2007
    Applicant: University of Florida Research Foundation, Inc.
    Inventors: Tony Schmitz, Gregory Duncan
  • Publication number: 20070057397
    Abstract: A preferred process for degassing a mold piece includes inserting the mold piece into an internal volume within a canister, sealing the internal volume, drawing a vacuum in the internal volume, and introducing into the internal volume a gaseous fluid suitable for degassing the mold piece.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 15, 2007
    Inventors: Donnie Duis, Stephen Beaton, David Byram, Gregory Duncan
  • Publication number: 20070022131
    Abstract: A system (5) for producing a document is disclosed. A repository (16) stores documents in a marked-up form according to one or more mark-up schemas. The schemas are adapted to make explicit structural information contained a document. A document format store (22) stores formats that are user selectable. A document production processor (29, 31, 32) generates a user-requested formatted document from the respective marked-up form using a user-selected said format that retains said implicit structural information.
    Type: Application
    Filed: March 22, 2004
    Publication date: January 25, 2007
    Inventors: Gregory Duncan, Christopher Stephen
  • Publication number: 20050188650
    Abstract: The present invention relates to an apparatus for packaging contact lenses. The apparatus includes a compliant head, improved heater and improved heat seal die.
    Type: Application
    Filed: May 2, 2005
    Publication date: September 1, 2005
    Inventors: Leslie Voss, Gregory Duncan, Ravi Sanka, Gary Hall, Mark Schlagel, Michael Widman