NL238368A - - Google Patents

Info

Publication number
NL238368A
NL238368A NL238368DA NL238368A NL 238368 A NL238368 A NL 238368A NL 238368D A NL238368D A NL 238368DA NL 238368 A NL238368 A NL 238368A
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 NL238368A publication Critical patent/NL238368A/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
    • 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)
  • Manufacture Of Motors, Generators (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
NL238368D 1958-04-22 NL238368A (enrdf_load_html_response)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL238368A true NL238368A (enrdf_load_html_response)

Family

ID=24933833

Family Applications (2)

Application Number Title Priority Date Filing Date
NL123996D NL123996C (enrdf_load_html_response) 1958-04-22
NL238368D NL238368A (enrdf_load_html_response) 1958-04-22

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL123996D NL123996C (enrdf_load_html_response) 1958-04-22

Country Status (4)

Country Link
US (1) US3521208A (enrdf_load_html_response)
DE (1) DE1173184B (enrdf_load_html_response)
GB (1) GB905576A (enrdf_load_html_response)
NL (2) NL238368A (enrdf_load_html_response)

Families Citing this family (3)

* 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
US7577269B2 (en) * 2006-08-28 2009-08-18 Technology Properties Limited Acoustic transducer
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 (enrdf_load_html_response) * 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 (enrdf_load_html_response) * 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

Also Published As

Publication number Publication date
GB905576A (en) 1962-09-12
US3521208A (en) 1970-07-21
DE1173184B (de) 1964-07-02
NL123996C (enrdf_load_html_response)

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