Patents by Inventor L. Scott Sheffield

L. Scott Sheffield 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: 9157709
    Abstract: The present disclosure relates to a system for forming a cartridge case, the system including a series of stages, each stage comprising a sequential location in the system, and each stage comprising a process step, wherein each process step is synchronized to occur within a substantially simultaneous stage interval, the stages including: an annealing stage, a head forming stage, and a taper stage. The present disclosure also relates to a method for manufacturing a cartridge case, the method including: receiving a single cartridge case at a time in a first direction into an annealing chamber through a first opening, passing an alternating current through an inductive coil for a certain time period to heat the cartridge case, releasing the cartridge case from the annealing chamber in the first direction through a second opening, and performing a forming step on the cartridge case.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 13, 2015
    Assignee: Setpoint Systems, Inc.
    Inventors: Steven E. Nuetzman, Justin D. Carroll, Robert H. Lundgreen, Jr., Nathan J. Morris, L. Scott Sheffield, Warren L. Westphal