Patents by Inventor Paul T. Aylward

Paul T. Aylward 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).

  • Deep hardening machinable aluminum killed high sulfur tool steel
    Patent number: 4052230
    Abstract: A low-alloy tool steel, for dies and molds, is deep hardening and highly machinable in the hardened condition. The steel is a water-quenched composition containing boron, sulfur, at least 0.020% aluminum, and a minimum of hardening agents including chromium and molybdenum. The method of producing such steel is disclosed.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: October 4, 1977
    Assignee: Bethlehem Steel Corporation
    Inventor: Paul T. Aylward
  • Deep hardening machinable aluminum killed high sulfur tool steel
    Patent number: 4019930
    Abstract: A low-alloy tool steel, for dies and molds, is deep hardening and highly machinable in the hardened condition. The steel is a water-quenched composition containing boron, sulfur, at least 0.020% aluminum, and a minimum of hardening agents including chromium and molybdenum. The method of producing such steel is disclosed.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: April 26, 1977
    Assignee: Bethlehem Steel Corporation
    Inventor: Paul T. Aylward