DE3275168D1 - Print hammer coil with a device for screening the magnetic field and for carrying off the heat - Google Patents

Print hammer coil with a device for screening the magnetic field and for carrying off the heat

Info

Publication number
DE3275168D1
DE3275168D1 DE8282109188T DE3275168T DE3275168D1 DE 3275168 D1 DE3275168 D1 DE 3275168D1 DE 8282109188 T DE8282109188 T DE 8282109188T DE 3275168 T DE3275168 T DE 3275168T DE 3275168 D1 DE3275168 D1 DE 3275168D1
Authority
DE
Germany
Prior art keywords
screening
carrying
heat
magnetic field
print hammer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8282109188T
Other languages
German (de)
English (en)
Inventor
Ho Chong Lee
David Howard Rickenbach
Gerhard Adolf Wolfert
Jack Louis Zable
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3275168D1 publication Critical patent/DE3275168D1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/38—Electromagnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/02—Hammers; Arrangements thereof
    • B41J9/127—Mounting of hammers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Impact Printers (AREA)
DE8282109188T 1981-12-30 1982-10-05 Print hammer coil with a device for screening the magnetic field and for carrying off the heat Expired DE3275168D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/335,898 US4397234A (en) 1981-12-30 1981-12-30 Electromagnetic print hammer coil assembly

Publications (1)

Publication Number Publication Date
DE3275168D1 true DE3275168D1 (en) 1987-02-26

Family

ID=23313683

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282109188T Expired DE3275168D1 (en) 1981-12-30 1982-10-05 Print hammer coil with a device for screening the magnetic field and for carrying off the heat

Country Status (7)

Country Link
US (1) US4397234A (enExample)
EP (1) EP0082929B1 (enExample)
JP (1) JPS58118280A (enExample)
BR (1) BR8207160A (enExample)
CA (1) CA1186944A (enExample)
DE (1) DE3275168D1 (enExample)
ES (1) ES518065A0 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532862A (en) * 1983-07-01 1985-08-06 Centronics Data Computer Corp. Print hammer bank
JPS60171354U (ja) * 1984-04-20 1985-11-13 日立工機株式会社 印字装置の印字ハンマ機構
US6281776B1 (en) * 1999-05-05 2001-08-28 Sun Microsystems, Inc. Thermally isolating transformer
US6292079B1 (en) * 2000-09-08 2001-09-18 Yen-Chen Chan Coil assembly of speaker
US6950004B2 (en) * 2000-09-19 2005-09-27 Arthur Alexander Godoy Quadrilateral electromagnetic coil assembly
US7005954B2 (en) * 2003-12-04 2006-02-28 General Atomics Electronic Systems, Inc. High current long life inductor
ATE471568T1 (de) * 2004-08-23 2010-07-15 Det Int Holding Ltd Spulenform zur bildung eines induktiven elements
US20060250205A1 (en) * 2005-05-04 2006-11-09 Honeywell International Inc. Thermally conductive element for cooling an air gap inductor, air gap inductor including same and method of cooling an air gap inductor
JP5859361B2 (ja) * 2012-03-27 2016-02-10 住友重機械工業株式会社 リニアモータ冷却構造
JP5859360B2 (ja) * 2012-03-27 2016-02-10 住友重機械工業株式会社 リニアモータ冷却構造
US10655922B2 (en) * 2015-09-18 2020-05-19 T.Rad Co., Ltd. Laminated heat sink
WO2019090358A1 (en) * 2017-11-06 2019-05-09 North Carolina State University Mixed material magnetic core for shielding of eddy current induced excess losses

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187226A (en) * 1961-08-07 1965-06-01 Curtiss Wright Corp Miniaturized electrical apparatus with combined heat dissipating and insulating structure
US3196783A (en) * 1963-05-10 1965-07-27 Potter Instrument Co Inc Printer magnet core
USB411062I5 (enExample) * 1964-11-13
GB1159751A (en) * 1967-01-06 1969-07-30 Int Computers Ltd Improvements in or relating to Printing Apparatus.
US3590327A (en) * 1969-04-24 1971-06-29 Transmation Inc System for maintaining uniform temperature conditions throughout a body
US3764856A (en) * 1972-05-17 1973-10-09 Massachusetts Inst Technology Heat transfer in electronic equipment
US4009459A (en) * 1975-05-05 1977-02-22 Benson William H Resin-empotted dry-type electromagnet for dusty and gassey locations
US4044668A (en) * 1975-05-16 1977-08-30 Printronix, Inc. Print hammer mechanism
JPS5928975B2 (ja) * 1975-06-16 1984-07-17 松下電器産業株式会社 変成器
US4033255A (en) * 1975-11-13 1977-07-05 Printronix, Inc. Print hammer actuator for dot matrix printers
US4269117A (en) * 1979-07-11 1981-05-26 International Business Machines Corporation Electro-magnetic print hammer

Also Published As

Publication number Publication date
JPH0239393B2 (enExample) 1990-09-05
ES8401380A1 (es) 1983-12-01
ES518065A0 (es) 1983-12-01
BR8207160A (pt) 1983-10-11
JPS58118280A (ja) 1983-07-14
EP0082929A2 (de) 1983-07-06
EP0082929B1 (de) 1987-01-21
US4397234A (en) 1983-08-09
CA1186944A (en) 1985-05-14
EP0082929A3 (en) 1984-03-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee