FR532175A - Process for the induction of electric currents by sound - Google Patents

Process for the induction of electric currents by sound

Info

Publication number
FR532175A
FR532175A FR532175DA FR532175A FR 532175 A FR532175 A FR 532175A FR 532175D A FR532175D A FR 532175DA FR 532175 A FR532175 A FR 532175A
Authority
FR
France
Prior art keywords
induction
sound
electric currents
currents
electric
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
Other languages
French (fr)
Inventor
Hans Vogt
Dr Joseph Engl
Joseph Massolle
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 filed Critical
Application granted granted Critical
Publication of FR532175A publication Critical patent/FR532175A/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
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/004—Transducers other than those covered by groups H04R9/00 - H04R21/00 using ionised gas

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Resistance Heating (AREA)
  • Cosmetics (AREA)
  • Reciprocating Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
FR532175D 1919-08-03 1921-03-15 Process for the induction of electric currents by sound Expired FR532175A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE350500T 1919-08-03
US458632A US1534148A (en) 1919-08-03 1921-04-04 Sound-translating apparatus

Publications (1)

Publication Number Publication Date
FR532175A true FR532175A (en) 1922-01-30

Family

ID=40404873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR532175D Expired FR532175A (en) 1919-08-03 1921-03-15 Process for the induction of electric currents by sound

Country Status (5)

Country Link
US (1) US1534148A (en)
DE (7) DE351955C (en)
FR (1) FR532175A (en)
GB (1) GB157442A (en)
NL (1) NL11725C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR910133A (en) * 1945-01-10 1946-05-28 Comptoir Des Cendres Et Metaux thermionic emitter
US2669609A (en) * 1948-10-30 1954-02-16 Rca Corp Electron discharge device
US2530745A (en) * 1948-12-10 1950-11-21 Bell Telephone Labor Inc Transistor microphone with conductive grains
US2768246A (en) * 1951-05-12 1956-10-23 Charles Legorju Electrical transducer
US3580075A (en) * 1967-07-31 1971-05-25 Corning Glass Works Pressure transducer for ionizable fluids
US5375859A (en) * 1993-08-26 1994-12-27 David G. Peck Mechanical brake for in-line roller skate
US5401038A (en) * 1993-08-26 1995-03-28 David G. Peck Mechanical brake for in-line roller skates

Also Published As

Publication number Publication date
DE368025C (en) 1923-01-29
NL11725C (en) 1924-10-15
DE350500C (en) 1922-03-22
DE351955C (en) 1922-04-19
DE368288C (en) 1923-02-06
US1534148A (en) 1925-04-21
DE405857C (en) 1924-11-12
DE366266C (en) 1923-01-03
DE351956C (en) 1922-04-19
GB157442A (en) 1921-09-22

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