FR684012A - Perfectionnements aux pavillons acoustiques - Google Patents

Perfectionnements aux pavillons acoustiques

Info

Publication number
FR684012A
FR684012A FR684012DA FR684012A FR 684012 A FR684012 A FR 684012A FR 684012D A FR684012D A FR 684012DA FR 684012 A FR684012 A FR 684012A
Authority
FR
France
Prior art keywords
pavilions
acoustic
acoustic pavilions
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)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products 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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR684012A publication Critical patent/FR684012A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
FR684012D 1928-11-24 1929-10-28 Perfectionnements aux pavillons acoustiques Expired FR684012A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US342768XA 1928-11-24 1928-11-24

Publications (1)

Publication Number Publication Date
FR684012A true FR684012A (fr) 1930-06-20

Family

ID=21875384

Family Applications (1)

Application Number Title Priority Date Filing Date
FR684012D Expired FR684012A (fr) 1928-11-24 1929-10-28 Perfectionnements aux pavillons acoustiques

Country Status (2)

Country Link
FR (1) FR684012A (fr)
GB (1) GB342768A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940596C (de) * 1949-10-30 1956-03-22 Siemens Ag Holztrichter fuer Lautsprecher, insbesondere Tieftontrichter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940596C (de) * 1949-10-30 1956-03-22 Siemens Ag Holztrichter fuer Lautsprecher, insbesondere Tieftontrichter

Also Published As

Publication number Publication date
GB342768A (en) 1931-02-09

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