GB1226077A - - Google Patents

Info

Publication number
GB1226077A
GB1226077A GB1226077DA GB1226077A GB 1226077 A GB1226077 A GB 1226077A GB 1226077D A GB1226077D A GB 1226077DA GB 1226077 A GB1226077 A GB 1226077A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
frame
foil
piezo
sept
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
English (en)
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
Priority claimed from NL6813994A external-priority patent/NL6813994A/xx
Priority claimed from NL6913897A external-priority patent/NL6913897A/xx
Application filed filed Critical
Publication of GB1226077A publication Critical patent/GB1226077A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
GB1226077D 1968-09-30 1969-09-29 Expired GB1226077A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6813994A NL6813994A (enrdf_load_stackoverflow) 1968-09-30 1968-09-30
NL6913897A NL6913897A (enrdf_load_stackoverflow) 1969-09-12 1969-09-12

Publications (1)

Publication Number Publication Date
GB1226077A true GB1226077A (enrdf_load_stackoverflow) 1971-03-24

Family

ID=26644359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226077D Expired GB1226077A (enrdf_load_stackoverflow) 1968-09-30 1969-09-29

Country Status (3)

Country Link
DE (1) DE1948933A1 (enrdf_load_stackoverflow)
FR (1) FR2019219A1 (enrdf_load_stackoverflow)
GB (1) GB1226077A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000801A1 (en) * 1986-06-19 1989-01-26 Reinhardt Fischer Electro-acoustical transducer

Also Published As

Publication number Publication date
DE1948933A1 (de) 1970-04-23
FR2019219A1 (enrdf_load_stackoverflow) 1970-06-26

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees