TREA

Donald A. Roy

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  • Waterbury, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Overload protection for metal forming machine
    • Patent number 4,452,095
    • Issue date Jun 5, 1984
    • Waterbury Farrel Div. of Textron, Inc.
    • Donald A. Roy
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Crank press blank holder and stripper mechanism
    • Patent number 4,274,316
    • Issue date Jun 23, 1981
    • Textron, Inc.
    • Donald A. Roy
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Hydraulic and mechanical punch holder adjustment
    • Patent number 4,170,051
    • Issue date Oct 9, 1979
    • Textron Inc.
    • George F. O'Keefe
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Timed ejector for a header
    • Patent number 4,145,784
    • Issue date Mar 27, 1979
    • Textron Inc.
    • Robert F. Mitchell
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...