CH556628A - ELECTRICAL CONVERTER AND METHOD FOR ITS MANUFACTURING. - Google Patents

ELECTRICAL CONVERTER AND METHOD FOR ITS MANUFACTURING.

Info

Publication number
CH556628A
CH556628A CH1445572A CH1445572A CH556628A CH 556628 A CH556628 A CH 556628A CH 1445572 A CH1445572 A CH 1445572A CH 1445572 A CH1445572 A CH 1445572A CH 556628 A CH556628 A CH 556628A
Authority
CH
Switzerland
Prior art keywords
manufacturing
electrical converter
converter
electrical
Prior art date
Application number
CH1445572A
Other languages
German (de)
Original Assignee
Industrial Research Prod 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 Industrial Research Prod Inc filed Critical Industrial Research Prod Inc
Publication of CH556628A publication Critical patent/CH556628A/en

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
    • H04R19/00—Electrostatic transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2207/00—Details of diaphragms or cones for electromechanical transducers or their suspension covered by H04R7/00 but not provided for in H04R7/00 or in H04R2307/00
    • H04R2207/021—Diaphragm extensions, not necessarily integrally formed, e.g. skirts, rims, flanges

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
CH1445572A 1971-11-08 1972-10-04 ELECTRICAL CONVERTER AND METHOD FOR ITS MANUFACTURING. CH556628A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19659271A 1971-11-08 1971-11-08
US19667771A 1971-11-08 1971-11-08

Publications (1)

Publication Number Publication Date
CH556628A true CH556628A (en) 1974-11-29

Family

ID=26892043

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1445572A CH556628A (en) 1971-11-08 1972-10-04 ELECTRICAL CONVERTER AND METHOD FOR ITS MANUFACTURING.

Country Status (7)

Country Link
JP (1) JPS5148067B2 (en)
CH (1) CH556628A (en)
DK (1) DK140578B (en)
FR (1) FR2159372B1 (en)
GB (1) GB1398171A (en)
NL (1) NL166835C (en)
SE (1) SE378500B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57188105A (en) * 1981-05-14 1982-11-19 Toshiba Corp Electret constituent

Also Published As

Publication number Publication date
JPS5148067B2 (en) 1976-12-18
DE2254692B2 (en) 1976-08-05
NL166835B (en) 1981-04-15
DK140578B (en) 1979-10-01
GB1398171A (en) 1975-06-18
DK140578C (en) 1980-02-18
NL7214357A (en) 1973-05-10
DE2254692A1 (en) 1973-05-10
JPS4859824A (en) 1973-08-22
FR2159372A1 (en) 1973-06-22
FR2159372B1 (en) 1977-08-26
SE378500B (en) 1975-09-01
NL166835C (en) 1981-09-15

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Legal Events

Date Code Title Description
PUE Assignment

Owner name: KNOWLES ELECTRONICS, INC.

PL Patent ceased