Patents by Inventor Dana Charles Linfield

Dana Charles Linfield 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).

  • Device and method for detecting and measuring fiber properties
    Patent number: 6025727
    Abstract: A device and method for measuring changes in denier, percent finish-on-yarn, interlacing of polymer fiber, and other fiber properties, in real time as the fiber is being manufactured. The device uses an electrode driven at a discrete voltage to induce a current which changes in amplitude and/or phase in response to changes in denier, finish-on-yarn and/or interlacing of a fiber. A sensing system samples the current and detects changes in the amplitude and/or phase. A computer, running an application program, quantifies the change and determines the applicable property.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: February 15, 2000
    Assignee: Instrumar Limited
    Inventors: Stuart Louis Inkpen, Dana Charles Linfield, Christopher David Nolan, John Charles Ebenezer Hall, Christopher Hext Marshall, Heather Lynn Spearns