GB653923A - Improvements in or relating to electro-acoustic transducers - Google Patents

Improvements in or relating to electro-acoustic transducers

Info

Publication number
GB653923A
GB653923A GB16314/48A GB1631448A GB653923A GB 653923 A GB653923 A GB 653923A GB 16314/48 A GB16314/48 A GB 16314/48A GB 1631448 A GB1631448 A GB 1631448A GB 653923 A GB653923 A GB 653923A
Authority
GB
United Kingdom
Prior art keywords
armature
electro
machined
june
supporting block
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
GB16314/48A
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 GB653923A publication Critical patent/GB653923A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
GB16314/48A 1947-06-18 1948-06-17 Improvements in or relating to electro-acoustic transducers Expired GB653923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US755397A US2506624A (en) 1947-06-18 1947-06-18 Electroacoustic transducer

Publications (1)

Publication Number Publication Date
GB653923A true GB653923A (en) 1951-05-30

Family

ID=25038963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16314/48A Expired GB653923A (en) 1947-06-18 1948-06-17 Improvements in or relating to electro-acoustic transducers

Country Status (6)

Country Link
US (1) US2506624A (en:Method)
BE (1) BE481098A (en:Method)
DE (1) DE813164C (en:Method)
FR (1) FR963471A (en:Method)
GB (1) GB653923A (en:Method)
NL (1) NL71197C (en:Method)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535757A (en) * 1946-06-25 1950-12-26 John J Root Peripherally driven electroacoustical transducer
US2567365A (en) * 1948-08-04 1951-09-11 Bell Telephone Labor Inc Polarized operator for telephone receivers
US2717096A (en) * 1953-01-23 1955-09-06 Minnis W Henderson Magnet gas tank cap
US4075437A (en) * 1976-07-16 1978-02-21 Bell Telephone Laboratories, Incorporated Composition, processing and devices including magnetic alloy
US4174983A (en) * 1978-07-13 1979-11-20 Bell Telephone Laboratories, Incorporated Fe-Cr-Co magnetic alloy processing
US4258234A (en) * 1979-08-24 1981-03-24 Bell Telephone Laboratories, Incorporated Electroacoustic device
US4311537A (en) * 1980-04-22 1982-01-19 Bell Telephone Laboratories, Incorporated Low-cobalt Fe-Cr-Co permanent magnet alloy processing
US4443667A (en) * 1982-01-11 1984-04-17 Bell Telephone Laboratories, Incorporated Electromagnetic transducer
US4425482A (en) 1982-03-08 1984-01-10 Western Electric Company Ring armature electroacoustic transducer
NL8602719A (nl) * 1986-10-29 1988-05-16 Philips Nv Trillingsmotor.
DE3819771A1 (de) * 1987-12-18 1989-07-06 Karl Scheffer Klute Gmbh & Co Handluftpumpe fuer zweiradreifen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1228639A (en) * 1914-03-27 1917-06-05 Erik Christian Bayer Sound-producing device.
US1579605A (en) * 1925-10-17 1926-04-06 Gavin Percy Radio amplifying receiver
US1895071A (en) * 1928-09-25 1933-01-24 Herman J Fanger Dynamic loud speaker unit
BE401119A (en:Method) * 1931-02-12
US2170571A (en) * 1936-08-12 1939-08-22 Bell Telephone Labor Inc Acoustic device
US2249160A (en) * 1939-05-19 1941-07-15 Bell Telephone Labor Inc Acoustic device
US2395166A (en) * 1942-12-24 1946-02-19 Astatic Corp Transducer

Also Published As

Publication number Publication date
NL71197C (en:Method)
BE481098A (en:Method)
DE813164C (de) 1951-09-10
US2506624A (en) 1950-05-09
FR963471A (en:Method) 1950-07-11

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