Patents by Inventor David C. Duncan

David C. 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).

  • Patent number: 11911272
    Abstract: Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that include a plurality of absorbable filaments arranged in a support structure and configured degrade within a defined time period and a membrane arranged about the plurality of absorbable filaments and configured to contain fragments of the plurality of absorbable filaments in response to a fracture or degradation of a filament.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: February 27, 2024
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Michael C. Chan, Edward H. Cully, Jeffrey B. Duncan, Byron K. Hayes, Samuel Joynson, Tom R. McDaniel, David J. Messick, Edward E. Shaw
  • Patent number: 6490872
    Abstract: A softserve product refrigeration and dispensing machine (1) having numerous novel features to make the machine and the operation thereof more efficient; a novel supply method and apparatus provides raw product mix and gaseous matter at the proper ratios to the freezing cylinder (17) of the machine. Additionally, and also in conjunction with a novel door and product dispensing apparatus (40, 40a), the special design features enable the maintenance of a dispenser (60), beater (110), freezing chamber and other parts of the machine capable of easy flushing with a cleaning and/or sanitizing solution via the supply method and apparatus without requiring machine disassembly with no retention of the food stuffs and the like.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: December 10, 2002
    Assignee: Specialty Equipment Companies, Inc.
    Inventors: Norman L. Beck, George C. Boyer, David C. Duncan, Ronald J. Mrugala
  • Patent number: 4910675
    Abstract: A system for automating the processing and packaging of prerecorded diskettes, including a label printer and applicator for applying the printed labels as the diskette moves along a conveyor, a diverter for rejecting faulty diskettes, a sleever for inserting collator cards into predetermined positions in an output bin where the sleeved diskettes are placed, all under automatic control of a control processor.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: March 20, 1990
    Assignee: Rimage Corp.
    Inventors: David C. Burns, John S. Lee, Robert L. Skubic, Mark C. Albu, Timothy P. Fitzgerald, Gerry A. Lee, David C. Duncan