FR963909A - - Google Patents

Info

Publication number
FR963909A
FR963909A FR963909DA FR963909A FR 963909 A FR963909 A FR 963909A FR 963909D A FR963909D A FR 963909DA FR 963909 A FR963909 A FR 963909A
Authority
FR
France
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
Other languages
French (fr)
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 date
Application granted granted Critical
Publication of FR963909A publication Critical patent/FR963909A/fr
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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
FR963909D 1947-06-06 Expired FR963909A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US752889A US2511114A (en) 1947-06-06 1947-06-06 Polarized electromagnet

Publications (1)

Publication Number Publication Date
FR963909A true FR963909A (da) 1950-07-26

Family

ID=25028316

Family Applications (1)

Application Number Title Priority Date Filing Date
FR963909D Expired FR963909A (da) 1947-06-06

Country Status (3)

Country Link
US (1) US2511114A (da)
FR (1) FR963909A (da)
GB (1) GB660997A (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120504B (de) * 1958-03-07 1961-12-28 Hugh Shaler Knowles Schallaufnahme- bzw. Wiedergabegeraet
DE1180415B (de) * 1961-09-06 1964-10-29 Ind Res Products Inc Elektromagnetischer Wandler

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536179A (en) * 1950-04-05 1951-01-02 Remco Ind Magnetic sound-powered telephonic unit
US2594088A (en) * 1950-05-05 1952-04-22 Westinghouse Electric Corp Polarized relay construction
US2912522A (en) * 1954-06-14 1959-11-10 Industrial Res Prod Inc Electro-mechanical transducing device
GB806428A (en) * 1956-03-29 1958-12-23 Sten Daniel Vigren Improvements in or relating to polarized electromagnetic devices
US3002057A (en) * 1956-03-29 1961-09-26 Vigren Sten Daniel Polarized electromagnetic device
US2994016A (en) * 1957-08-28 1961-07-25 Tibbetts Industries Magnetic translating device
NL123996C (da) * 1958-04-22
DE1236073B (de) * 1958-06-26 1967-03-09 Sten Daniel Vigren Verfahren zur Herstellung massgerechter Luftspalte bei elektromagnetischen Vorrichtungen
US3054426A (en) * 1958-12-15 1962-09-18 Gen Motors Corp Rotary magnetic actuator
DE1269246B (de) * 1959-11-05 1968-05-30 Tibbetts Industries Magnetischer Wandler
DE1257283B (de) * 1959-11-05 1967-12-28 Tibbetts Industries Elektromagnetischer Wandler
DE1179256B (de) * 1963-04-13 1964-10-08 Lehner Fernsprech Signal Vierpoliges Antriebssystem fuer elektro-akustische Wandler
DE1299039B (de) * 1966-04-19 1969-07-10 Indian Telephone Ind Ltd Doora Elektromagnetische Schwingvorrichtung
US3436568A (en) * 1966-04-19 1969-04-01 Indian Telephone Ind Ltd Electromagnetic vibratory devices
US3531745A (en) * 1969-10-22 1970-09-29 Tibbetts Industries Magnetic translating device with armature flux adjustment means
DE2365190B2 (de) * 1973-12-29 1978-10-26 Elmeg-Elektro-Mechanik Gmbh, 3150 Peine Elektromagnetsystem

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US265485A (en) * 1882-10-03 Electro-magnet
US847555A (en) * 1906-02-05 1907-03-19 Western Electric Co Adjusting device for relays.
US936503A (en) * 1908-01-04 1909-10-12 Charles E Williams Magnetic regulator for audiphone-receivers.
US1677336A (en) * 1925-05-25 1928-07-17 Westinghouse Electric & Mfg Co Induction relay
US1876164A (en) * 1929-07-01 1932-09-06 Magnavox Co Magnetic device
US2013229A (en) * 1931-10-08 1935-09-03 Andis Mathew Power driven hair clipper
US2163161A (en) * 1937-05-20 1939-06-20 Control Instr Co Inc Magnetic unit
US2215782A (en) * 1938-08-31 1940-09-24 Control Instr Co Inc Telephonic unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120504B (de) * 1958-03-07 1961-12-28 Hugh Shaler Knowles Schallaufnahme- bzw. Wiedergabegeraet
DE1180415B (de) * 1961-09-06 1964-10-29 Ind Res Products Inc Elektromagnetischer Wandler

Also Published As

Publication number Publication date
GB660997A (en) 1951-11-14
US2511114A (en) 1950-06-13

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