GB646164A - Improvements in or relating to electroacoustic transducers - Google Patents

Improvements in or relating to electroacoustic transducers

Info

Publication number
GB646164A
GB646164A GB27761/47A GB2776147A GB646164A GB 646164 A GB646164 A GB 646164A GB 27761/47 A GB27761/47 A GB 27761/47A GB 2776147 A GB2776147 A GB 2776147A GB 646164 A GB646164 A GB 646164A
Authority
GB
United Kingdom
Prior art keywords
armature
magnet
spacer
magnetic
diaphragm
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
GB27761/47A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB646164A publication Critical patent/GB646164A/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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB27761/47A 1946-10-19 1947-10-16 Improvements in or relating to electroacoustic transducers Expired GB646164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US704483A US2566849A (en) 1946-10-19 1946-10-19 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
GB646164A true GB646164A (en) 1950-11-15

Family

ID=24829716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27761/47A Expired GB646164A (en) 1946-10-19 1947-10-16 Improvements in or relating to electroacoustic transducers

Country Status (5)

Country Link
US (1) US2566849A (enrdf_load_stackoverflow)
BE (1) BE473856A (enrdf_load_stackoverflow)
FR (1) FR946542A (enrdf_load_stackoverflow)
GB (1) GB646164A (enrdf_load_stackoverflow)
NL (1) NL71172C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5245892A (en) * 1975-10-09 1977-04-11 Seikosha Co Ltd Sound genertor equipment
US4425482A (en) 1982-03-08 1984-01-10 Western Electric Company Ring armature electroacoustic transducer

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1455745A (en) * 1919-05-09 1923-05-15 Henry C Egerton Diaphragm for dictaphones, etc
US1331469A (en) * 1919-06-25 1920-02-17 Stewart Gatter L Telephone-receiver
US1708943A (en) * 1921-09-22 1929-04-16 Western Electric Co Acoustic device
US1439785A (en) * 1922-04-20 1922-12-26 Eisemann Magneto Corp Telephone receiver of the watchcase type
US1830160A (en) * 1928-03-19 1931-11-03 French Electric Company Telephone receiver
US1800573A (en) * 1929-01-12 1931-04-14 Skala Res Lab Inc Diaphragm
USRE22499E (en) * 1932-12-24 1944-06-20 Bone conduction heabing-aid
US2003908A (en) * 1934-04-25 1935-06-04 Bell Telephone Labor Inc Acoustic device
US2044608A (en) * 1935-05-03 1936-06-16 Du Pont Viscoloid Co Diaphragm for electrical reproduction of sound
US2170571A (en) * 1936-08-12 1939-08-22 Bell Telephone Labor Inc Acoustic device
US2141595A (en) * 1937-01-13 1938-12-27 Cinaudagraph Corp Magnet structure
US2249160A (en) * 1939-05-19 1941-07-15 Bell Telephone Labor Inc Acoustic device
BE479953A (enrdf_load_stackoverflow) * 1940-11-29
US2395166A (en) * 1942-12-24 1946-02-19 Astatic Corp Transducer
US2404727A (en) * 1944-12-14 1946-07-23 Du Pont Dissolving of polymers

Also Published As

Publication number Publication date
FR946542A (fr) 1949-06-07
US2566849A (en) 1951-09-04
NL71172C (enrdf_load_stackoverflow)
BE473856A (enrdf_load_stackoverflow)

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