in which mechanical power is applied under electromagnetic control

Patents Grantslast 30 patents

  • Information Patent Grant

    Printer integrated driver and hammerbank

    • Patent number 5,743,665
    • Issue date Apr 28, 1998
    • Printronix, Inc.
    • Robert P. Ryan
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer power supply

    • Patent number 5,595,446
    • Issue date Jan 21, 1997
    • Printronix, Inc.
    • Gordon Barrus
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer hammerspring

    • Patent number 5,335,999
    • Issue date Aug 9, 1994
    • Printronix, Inc.
    • Norman E. Farb
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer assembly for dot line printer

    • Patent number 5,228,386
    • Issue date Jul 20, 1993
    • Hitachi Koki Co., Ltd.
    • Shigenori Suematsu
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Quiet impact printer mechanism

    • Patent number 5,199,804
    • Issue date Apr 6, 1993
    • Smith Corona Corporation
    • Roger J. Rimbey
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Quiet impact printer mechanism

    • Patent number 5,183,344
    • Issue date Feb 2, 1993
    • Smith Corona Corporation
    • Stephen M. Pawlak
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Attaching device in a spring-charged dot printer

    • Patent number 4,882,987
    • Issue date Nov 28, 1989
    • NEC Home Electronics Ltd.
    • Yasuo Sakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printhead which minimizes stray magnetic flux

    • Patent number 4,879,947
    • Issue date Nov 14, 1989
    • Hitachi Koki Co., Ltd.
    • Makoto Kurosawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Method of moving print elements in printheads and a printhead with...

    • Patent number 4,877,342
    • Issue date Oct 31, 1989
    • Facit Aktiebolag
    • Sven G. V. Stenudd
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer head bank and method of manufacturing the same

    • Patent number 4,777,875
    • Issue date Oct 18, 1988
    • NEC Home Electronics Ltd.
    • Shinsuke Fujiwara
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Quiet impact printer

    • Patent number 4,681,469
    • Issue date Jul 21, 1987
    • Xerox Corporation
    • Andrew Gabor
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Mechanism utilizing resilient energy

    • Patent number 4,664,540
    • Issue date May 12, 1987
    • Bemax Corporation
    • Ward W. Beman
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Long release coil hammer actuating mechanism

    • Patent number 4,584,937
    • Issue date Apr 29, 1986
    • Mannesmann Tally Corporation
    • Edward D. Bringhurst
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Multicolor cross-hammer printer

    • Patent number 4,553,864
    • Issue date Nov 19, 1985
    • Seikosha Co., Ltd.
    • Mikio Hayashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Dot matrix print actuator

    • Patent number 4,527,469
    • Issue date Jul 9, 1985
    • Dataproducts Corporation
    • Peter H. Wolf
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer mechanism having intermediate pivot fulcrum

    • Patent number 4,498,388
    • Issue date Feb 12, 1985
    • Printronix, Inc.
    • Norman E. Farb
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Stylus driving apparatus for printers

    • Patent number 4,484,519
    • Issue date Nov 27, 1984
    • Citizen Watch Co. Ltd.
    • Toshio Kurihara
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Cross hammer type printer head

    • Patent number 4,469,023
    • Issue date Sep 4, 1984
    • Seikosha Co., Ltd.
    • Mikio Hayashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Actuator mechanism for a printer or the like using dual magnets

    • Patent number 4,461,207
    • Issue date Jul 24, 1984
    • International Business Machines Corporation
    • Edward F. Helinski
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer mechanism

    • Patent number 4,454,809
    • Issue date Jun 19, 1984
    • Teletype Corporation
    • Robert J. Ramig
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer apparatus

    • Patent number 4,441,421
    • Issue date Apr 10, 1984
    • Hossein Khorsand
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printing apparatus with cooling of hammer printing coils

    • Patent number 4,438,692
    • Issue date Mar 27, 1984
    • Hitachi, Ltd.
    • Michio Yanadori
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer actuating device

    • Patent number 4,332,489
    • Issue date Jun 1, 1982
    • International Business Machines Corporation
    • William L. Dollenmayer
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer mechanism having dual electromagnetic coils and pole p...

    • Patent number 4,258,623
    • Issue date Mar 31, 1981
    • Printronix, Inc.
    • Gordon B. Barrus
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Magnetic actuator using modulated flux

    • Patent number 4,242,658
    • Issue date Dec 30, 1980
    • International Business Machines Corporation
    • Edward F. Helinski
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer mechanism having dual pole pieces

    • Patent number 4,233,894
    • Issue date Nov 18, 1980
    • Printronix, Inc.
    • Gordon B. Barrus
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer hammer assembly

    • Patent number 4,200,043
    • Issue date Apr 29, 1980
    • Canon Kabushiki Kaisha
    • Mineo Nozaki
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Stray ink collector for impact printer

    • Patent number 4,190,847
    • Issue date Feb 26, 1980
    • Facit Aktiebolag
    • Sven G. V. Stenudd
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer

    • Patent number 4,189,997
    • Issue date Feb 26, 1980
    • Canon Kabushiki Kaisha
    • Mineo Nozaki
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print hammer and interposer captivating linkage

    • Patent number 4,189,998
    • Issue date Feb 26, 1980
    • Mohawk Data Sciences Corp.
    • Donald R. Morreall
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS