GB747023A - Improvements in or relating to electro-acoustic transducers - Google Patents

Improvements in or relating to electro-acoustic transducers

Info

Publication number
GB747023A
GB747023A GB21510/53A GB2151053A GB747023A GB 747023 A GB747023 A GB 747023A GB 21510/53 A GB21510/53 A GB 21510/53A GB 2151053 A GB2151053 A GB 2151053A GB 747023 A GB747023 A GB 747023A
Authority
GB
United Kingdom
Prior art keywords
chambers
diaphragm
electrodes
electrolyte
block
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
GB21510/53A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARRY CHARLES WARNER
Original Assignee
HARRY CHARLES WARNER
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 to US113753A priority Critical patent/US2648726A/en
Application filed by HARRY CHARLES WARNER filed Critical HARRY CHARLES WARNER
Priority to GB21510/53A priority patent/GB747023A/en
Priority to FR1086551D priority patent/FR1086551A/fr
Publication of GB747023A publication Critical patent/GB747023A/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
    • H04R21/00—Variable-resistance transducers
    • H04R21/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/028—Microphones with a fluid as resistance material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB21510/53A 1949-09-02 1953-08-04 Improvements in or relating to electro-acoustic transducers Expired GB747023A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US113753A US2648726A (en) 1949-09-02 1949-09-02 Control device for electrical circuits
GB21510/53A GB747023A (en) 1953-08-04 1953-08-04 Improvements in or relating to electro-acoustic transducers
FR1086551D FR1086551A (enrdf_load_stackoverflow) 1953-08-04 1953-08-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21510/53A GB747023A (en) 1953-08-04 1953-08-04 Improvements in or relating to electro-acoustic transducers

Publications (1)

Publication Number Publication Date
GB747023A true GB747023A (en) 1956-03-28

Family

ID=10164148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21510/53A Expired GB747023A (en) 1949-09-02 1953-08-04 Improvements in or relating to electro-acoustic transducers

Country Status (3)

Country Link
US (1) US2648726A (enrdf_load_stackoverflow)
FR (1) FR1086551A (enrdf_load_stackoverflow)
GB (1) GB747023A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703822A (en) * 1952-04-29 1955-03-08 Harry C Warner Phonograph pickup and the like
US2769038A (en) * 1952-11-29 1956-10-30 Orton Melvern Phonograph pickup and the like
US2786898A (en) * 1953-01-19 1957-03-26 Henry J Schultz Electric control device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US203018A (en) * 1878-04-30 Improvement in telephones or speaking-telegraphs
GB135157A (enrdf_load_stackoverflow) *
GB134865A (enrdf_load_stackoverflow) * 1921-01-11
FR661954A (fr) * 1928-08-25 1929-08-01 Dispositif éjectrocapillaire fonctionnant comme microphone, téléphone et détecteur
US1972578A (en) * 1931-08-14 1934-09-04 Wallichs Adolf Measuring instrument
GB385702A (en) * 1931-11-04 1933-01-05 Archibald Montgomery Low Improvements in sound reproducing mechanism
US2279815A (en) * 1940-11-14 1942-04-14 Oak Mfg Co Potentiometer
US2373676A (en) * 1941-07-30 1945-04-17 Kenneth J Germeshausen Reproducer
US2357026A (en) * 1943-10-30 1944-08-29 Scherbatskoy Serge Alexander Phonograph
US2403696A (en) * 1944-08-14 1946-07-09 Harry C Warner Electrical sound reproducing apparatus
FR58189E (enrdf_load_stackoverflow) * 1944-11-28 1953-09-29
US2407363A (en) * 1945-02-17 1946-09-10 Oliver W Storey Electrical apparatus

Also Published As

Publication number Publication date
US2648726A (en) 1953-08-11
FR1086551A (enrdf_load_stackoverflow) 1955-02-14

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