TREA

Donald K. Rex

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  • Highland Beach, FL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Platen to print head gap adjustment arrangement
    • Patent number 5,518,324
    • Issue date May 21, 1996
    • International Business Machines Corporation
    • Michael C. Campbell
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ribbon print track reinking with a roll system
    • Patent number 5,015,108
    • Issue date May 14, 1991
    • International Business Machines Corporation
    • Jeffrey H. Paterra
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ribbon cartridge with endless ribbon reinking mechanism
    • Patent number 5,005,996
    • Issue date Apr 9, 1991
    • International Business Machines Corporation
    • Jeffrey H. Paterra
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Web feed mechanism and door with static protrusions
    • Patent number 4,790,467
    • Issue date Dec 13, 1988
    • International Business Machines Corporation
    • Donald K. Rex
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer having removable paper feed module
    • Patent number 4,671,686
    • Issue date Jun 9, 1987
    • International Business Machines Corporation
    • James K. Howes
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ribbon positioning mechanism
    • Patent number 4,643,601
    • Issue date Feb 17, 1987
    • International Business Machines Corporation
    • Dennis P. Nash
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Method of making an endless forms feed tractor belt
    • Patent number 4,585,606
    • Issue date Apr 29, 1986
    • International Business Machines Corporation
    • Robert W. Cornell
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Forms feed tractor
    • Patent number 4,453,660
    • Issue date Jun 12, 1984
    • International Business Machines Corporation
    • Robert W. Cornell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Print ribbon protection
    • Patent number 4,376,587
    • Issue date Mar 15, 1983
    • International Business Machines Corporation
    • Donald K. Rex
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Dot matrix print head
    • Patent number 4,362,406
    • Issue date Dec 7, 1982
    • International Business Machines Corp.
    • John M. Choberka
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ribbon shield for printer
    • Patent number 4,285,604
    • Issue date Aug 25, 1981
    • International Business Machines Corporation
    • Donald K. Rex
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Data matrix print head
    • Patent number 4,284,363
    • Issue date Aug 18, 1981
    • International Business Machines Corp.
    • John M. Choberka
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ribbon lifting mechanism for a wire matrix printer
    • Patent number 3,987,883
    • Issue date Oct 26, 1976
    • International Business Machines Corporation
    • Daniel P. Darwin
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS