Patents by Inventor Elizabeth Bullard

Elizabeth Bullard 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).

  • PRE-CONDITIONED AlSiFe COATING OF BORON STEEL USED IN HOT STAMPING
    Publication number: 20190249271
    Abstract: A process for pre-conditioning a hot stamped part is provided. The process includes continuously annealing a boron steel material having an aluminum coating for a predetermined time and at a predetermined temperature such that less than 10% Iron (Fe) is in the aluminum coating and AlSi pockets are formed in the aluminum coating prior to a subsequent hot stamping process, wherein the predetermined time and temperature are a function of a thickness of the boron steel material.
    Type: Application
    Filed: February 12, 2018
    Publication date: August 15, 2019
    Applicant: Ford Motor Company
    Inventors: Constantin Chiriac, Raj Sohmshetty, Elizabeth Bullard, James Engle, Stephen Kernosky
  • METHOD FOR MONITORING QUALITY OF HOT STAMPED COMPONENTS
    Publication number: 20180111179
    Abstract: A hot stamping system includes a controller programmed to alter a coolant flow rate, without altering cycle time, in an active cooling system of a die arrangement, configured to hot stamp metal into components, based on an amount of heat transferred from the components to the active cooling system such that a grain structure of the components transitions from an austenitic state to a martensitic state while the die arrangement is closed.
    Type: Application
    Filed: October 21, 2016
    Publication date: April 26, 2018
    Inventors: Raj Sohmshetty, Constantin Chiriac, Torsten Hallfeldt, Elizabeth Bullard, James Engle