Patents by Inventor John Wilbur Allard

John Wilbur Allard 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).

  • Extrusion components for honeycomb bodies
    Patent number: 11045975
    Abstract: A honeycomb extrusion die comprising at least some slots (308) each with a divot (312) spaced toward a discharge surface (324) from a feedhole-slot intersection (332) and a wide portion at the discharge surface extending into the die body (358) to the divot (312) to strengthen a peripheral region of a honeycomb extrudate in a reinforcement region, and a bulk nominal section corresponding to a bulk region of the honeycomb body.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: June 29, 2021
    Assignee: Corning Incorporated
    Inventors: John Wilbur Allard, Thomas William Brew, Tushar Gulati, Helmut Roland Letzel, Min Shen
  • EXTRUSION COMPONENTS FOR HONEYCOMB BODIES
    Publication number: 20190054654
    Abstract: A honeycomb extrusion die comprising at least some slots (308) each with a divot (312) spaced toward a discharge surface (324) from a feedhole-slot intersection (332) and a wide portion at the discharge surface extending into the die body (358) to the divot (312) to strengthen a peripheral region of a honeycomb extrudate in a reinforcement region, and a bulk nominal section corresponding to a bulk region of the honeycomb body.
    Type: Application
    Filed: February 13, 2017
    Publication date: February 21, 2019
    Inventors: John Wilbur Allard, Thomas William Brew, Tushar Gulati, Helmut Roland Letzel, Min Shen