NL232314A - - Google Patents

Info

Publication number
NL232314A
NL232314A NL232314DA NL232314A NL 232314 A NL232314 A NL 232314A NL 232314D A NL232314D A NL 232314DA NL 232314 A NL232314 A NL 232314A
Authority
NL
Netherlands
Application number
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.)
Publication of NL232314A publication Critical patent/NL232314A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0289—Transducers, loudspeakers, moving coil arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL232314D 1958-10-15 NL232314A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL232314 1958-10-15

Publications (1)

Publication Number Publication Date
NL232314A true NL232314A (enrdf_load_stackoverflow)

Family

ID=19751389

Family Applications (2)

Application Number Title Priority Date Filing Date
NL111475D NL111475C (enrdf_load_stackoverflow) 1958-10-15
NL232314D NL232314A (enrdf_load_stackoverflow) 1958-10-15

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL111475D NL111475C (enrdf_load_stackoverflow) 1958-10-15

Country Status (7)

Country Link
US (1) US3067366A (enrdf_load_stackoverflow)
CH (1) CH376149A (enrdf_load_stackoverflow)
DE (1) DE1176768B (enrdf_load_stackoverflow)
ES (1) ES252608A1 (enrdf_load_stackoverflow)
FR (1) FR1247967A (enrdf_load_stackoverflow)
GB (1) GB927545A (enrdf_load_stackoverflow)
NL (2) NL232314A (enrdf_load_stackoverflow)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134057A (en) * 1960-07-11 1964-05-19 Sumitomo Metal Ind Magnetic circuit for the deflection of flux leakage
US3387707A (en) * 1965-06-14 1968-06-11 Westinghouse Electric Corp Permanent magnet assembly
US3478289A (en) * 1968-02-12 1969-11-11 Robert A Parnell Permanent magnet assembly for a loudspeaker assembly
DE1907969A1 (de) * 1968-03-01 1969-09-25 Philips Nv Magnetsystem mit einem ringfoermigen permanenten Hauptmagnet mit einer Weicheisenober- und -unterplatte und einem Kern mit Hilfsmagnet
FR2160353B1 (enrdf_load_stackoverflow) * 1971-11-15 1976-06-11 Knorr Bremse Gmbh
GB1360080A (en) * 1971-12-22 1974-07-17 Melnikov J A Magnetic system
US4323843A (en) * 1978-12-06 1982-04-06 Batham Ian N Magnetic contamination detector
DE3339720A1 (de) * 1983-11-03 1985-05-15 Magnetfabrik Bonn Gmbh Vorm. Gewerkschaft Windhorst, 5300 Bonn Streuarmes topfmagnetsystem fuer magnet-dynamische lautsprecher bzw. akustische wandler
US5142260A (en) * 1991-03-08 1992-08-25 Harman International Industries, Incorporated Transducer motor assembly
US5197104A (en) * 1991-04-18 1993-03-23 Josef Lakatos Electrodynamic loudspeaker with electromagnetic impedance sensor coil
GB9206014D0 (en) * 1992-03-19 1992-04-29 Oxford Instr Ltd Magnet assembly
JPH06233379A (ja) * 1993-02-02 1994-08-19 Kenwood Corp スピーカ
US5409236A (en) * 1993-12-23 1995-04-25 Therrien; Joel M. Magnetic game or puzzle and method for making same
US5802191A (en) * 1995-01-06 1998-09-01 Guenther; Godehard A. Loudspeakers, systems, and components thereof
US5883967A (en) * 1997-04-15 1999-03-16 Harman International Industries, Incorporated Slotted diaphragm loudspeaker
US5879549A (en) * 1997-09-13 1999-03-09 Caiozza; Joseph Filter cartridge magnetic attachment
US8588457B2 (en) 1999-08-13 2013-11-19 Dr. G Licensing, Llc Low cost motor design for rare-earth-magnet loudspeakers
JP2002530967A (ja) * 1998-11-13 2002-09-17 エイ グエンサー ゴードハード 希土類磁石ラウドスピーカーのための低コストのモーター設計
AU6636700A (en) 1999-08-13 2001-03-13 Godehard A. Guenther Low cost broad range loudspeaker and system
EP1410682B1 (en) * 2000-06-27 2017-02-08 Dr. G Licensing, LLC Low profile speaker and system
US6611606B2 (en) * 2000-06-27 2003-08-26 Godehard A. Guenther Compact high performance speaker
US6993147B2 (en) * 2000-08-14 2006-01-31 Guenther Godehard A Low cost broad range loudspeaker and system
US6835048B2 (en) * 2002-12-18 2004-12-28 Varian, Inc. Ion pump having secondary magnetic field
WO2006029378A2 (en) 2004-09-09 2006-03-16 Guenther Godehard A Loudspeaker and systems
US8189840B2 (en) 2007-05-23 2012-05-29 Soundmatters International, Inc. Loudspeaker and electronic devices incorporating same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2141595A (en) * 1937-01-13 1938-12-27 Cinaudagraph Corp Magnet structure
BE440964A (enrdf_load_stackoverflow) * 1939-10-05
DE1011466B (de) * 1955-06-18 1957-07-04 Philips Patentverwaltung Magnetsystem fuer elektroakustische Wandler
DE1742108U (de) * 1956-06-14 1957-03-28 Deutsche Edelstahlwerke Ag Dauermagnetsystem mit zentralem eisenkern, insbesondere fuer lautsprecher und tauchspulmikrofone.
US2923783A (en) * 1957-06-17 1960-02-02 Stanley F White Electro-acoustical transducer
US2915681A (en) * 1957-11-20 1959-12-01 Indiana Steel Products Co Magnet assemblies

Also Published As

Publication number Publication date
US3067366A (en) 1962-12-04
GB927545A (en) 1963-05-29
FR1247967A (fr) 1960-12-09
DE1176768B (de) 1964-08-27
ES252608A1 (es) 1959-12-01
CH376149A (de) 1964-03-31
NL111475C (enrdf_load_stackoverflow)

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