BE474895A - - Google Patents

Info

Publication number
BE474895A
BE474895A BE474895DA BE474895A BE 474895 A BE474895 A BE 474895A BE 474895D A BE474895D A BE 474895DA BE 474895 A BE474895 A BE 474895A
Authority
BE
Belgium
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 BE474895A publication Critical patent/BE474895A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
BE474895D 1941-01-31 BE474895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US376874A US2313129A (en) 1941-01-31 1941-01-31 Art of mounting piezoelectric crystals

Publications (1)

Publication Number Publication Date
BE474895A true BE474895A (en)

Family

ID=23486852

Family Applications (1)

Application Number Title Priority Date Filing Date
BE474895D BE474895A (en) 1941-01-31

Country Status (4)

Country Link
US (1) US2313129A (en)
BE (1) BE474895A (en)
FR (1) FR950240A (en)
GB (1) GB551954A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE483732A (en) * 1944-05-03
US2476414A (en) * 1945-05-24 1949-07-19 William H Hutter Phonograph pickup having plastic torsion arm
US2510585A (en) * 1945-08-21 1950-06-06 Rca Corp Dynamic galvanometer
US2510342A (en) * 1946-04-03 1950-06-06 Avco Mfg Corp Pickup mounting
US2562741A (en) * 1947-02-13 1951-07-31 Dictaphone Corp Method of making sealed electromechanical translating devices
US2539297A (en) * 1947-02-27 1951-01-23 Lazaro Luis Nicolas Gomez De Electric musical instrument
US2518861A (en) * 1947-03-21 1950-08-15 Brush Dev Co Phonograph pickup
US2519185A (en) * 1947-03-21 1950-08-15 Brush Dev Co Phonograph pickup
US2564054A (en) * 1947-10-10 1951-08-14 Magnavox Co Phonograph pickup and mechanical motion converting system therefor
US2594948A (en) * 1947-10-30 1952-04-29 Brush Dev Co Electromechanical transducer unit
US2498210A (en) * 1948-11-02 1950-02-21 Avco Mfg Corp Piezoelectric phonograph pickup device
NL77992C (en) * 1950-03-02
DE1026979B (en) * 1952-03-13 1958-03-27 Electroacustik Ges M B H Device for establishing a detachable connection between a pickup and a scanning element
DE1026980B (en) * 1952-03-27 1958-03-27 Electroacustik Ges M B H Piezoelectric pickup
DE1029173B (en) * 1952-09-15 1958-04-30 Daniel Tefi Apparatebau Piezoelectric pickup
DE1053802B (en) * 1953-05-28 1959-03-26 Tefi Appbau Dr Daniel K G Method of manufacturing a piezoelectric pickup
US2879413A (en) * 1956-08-21 1959-03-24 Sonotone Corp Phonograph pickups
US2839695A (en) * 1957-01-31 1958-06-17 Donald H Robey Frequency controllable piezo-electric resonator
US3377439A (en) * 1958-04-03 1968-04-09 Erie Technological Prod Inc Binaural piezoelectric pickup
GB1052623A (en) * 1962-06-20
US3465747A (en) * 1964-11-17 1969-09-09 Vernon L Rogallo Ballistocardiograph
US3374663A (en) * 1965-04-16 1968-03-26 Electronic Systems Inc Vibration detector
US3582692A (en) * 1968-05-01 1971-06-01 U S Research Corp Resiliently supported sensing transducer
US4051396A (en) * 1974-02-28 1977-09-27 Channel Products, Inc. Encapsulation to prevent fracture of piezoelectric high voltage mechanism
WO1984001499A1 (en) * 1982-10-19 1984-04-26 Ivac Corp Electronic sphygmomanometer
US7622844B1 (en) * 2003-12-30 2009-11-24 Hipercon, Llc Metal fiber brush interface conditioning

Also Published As

Publication number Publication date
US2313129A (en) 1943-03-09
FR950240A (en) 1949-09-21
GB551954A (en) 1943-03-17

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