GB905576A - An electromagnetic device - Google Patents

An electromagnetic device

Info

Publication number
GB905576A
GB905576A GB13401/59A GB1340159A GB905576A GB 905576 A GB905576 A GB 905576A GB 13401/59 A GB13401/59 A GB 13401/59A GB 1340159 A GB1340159 A GB 1340159A GB 905576 A GB905576 A GB 905576A
Authority
GB
United Kingdom
Prior art keywords
armature
magnetic
gap
polepieces
reluctance
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
GB13401/59A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB905576A publication Critical patent/GB905576A/en
Expired legal-status Critical Current

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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB13401/59A 1958-04-22 1959-04-20 An electromagnetic device Expired GB905576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73008258A 1958-04-22 1958-04-22

Publications (1)

Publication Number Publication Date
GB905576A true GB905576A (en) 1962-09-12

Family

ID=24933833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13401/59A Expired GB905576A (en) 1958-04-22 1959-04-20 An electromagnetic device

Country Status (4)

Country Link
US (1) US3521208A (forum.php)
DE (1) DE1173184B (forum.php)
GB (1) GB905576A (forum.php)
NL (2) NL238368A (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895813A1 (en) * 2006-08-28 2008-03-05 Technology Properties Limited Acoustic tranducer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7376237B2 (en) * 2004-09-02 2008-05-20 Oticon A/S Vibrator for bone-conduction hearing
EP1962550A3 (en) * 2007-02-20 2009-03-04 Sonion Nederland B.V. A moving armature receiver with reduced parasitic coupling

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245511A (en) * 1937-12-04 1941-06-10 Us Instr Corp Telephone instrument
CH218774A (de) * 1939-09-05 1941-12-31 Fides Gmbh Magnetisches Mikrofon.
BE443898A (forum.php) * 1940-12-02
DE890992C (de) * 1940-12-23 1953-09-24 Siemens Ag Elektromagnet
DE734040C (de) * 1941-09-24 1943-04-07 Siemens Ag Polarisiertes Relais
CH311081A (de) * 1942-04-07 1955-11-15 Siemens Ag Einrichtung mit steuerbarem Magnetkreis.
US2443784A (en) * 1943-05-17 1948-06-22 Barber Coleman Company Relay
FR963909A (forum.php) * 1947-06-06 1950-07-26
US2912522A (en) * 1954-06-14 1959-11-10 Industrial Res Prod Inc Electro-mechanical transducing device
US2912523A (en) * 1955-10-26 1959-11-10 Industrial Res Prod Inc Electro-acoustic transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895813A1 (en) * 2006-08-28 2008-03-05 Technology Properties Limited Acoustic tranducer

Also Published As

Publication number Publication date
NL123996C (forum.php)
DE1173184B (de) 1964-07-02
US3521208A (en) 1970-07-21
NL238368A (forum.php)

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