BE335673A - - Google Patents

Info

Publication number: BE335673A
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.)

1925-05-11

Publication of BE335673A publication Critical patent/BE335673A/xx

Classifications

- 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
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- 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
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Health & Medical Sciences (AREA)
Otolaryngology (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Details Of Audible-Bandwidth Transducers (AREA)

BE335673D 1925-05-11 BE335673A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB1722007X		1925-05-11

Publications (1)

Publication Number	Publication Date
BE335673A true BE335673A (fr)

Family

ID=10889181

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
BE335674D BE335674A (fr)	1925-05-11
BE335672D BE335672A (fr)	1925-05-11
BE335673D BE335673A (fr)	1925-05-11

Family Applications Before (2)

Application Number	Title	Priority Date	Filing Date
BE335674D BE335674A (fr)	1925-05-11
BE335672D BE335672A (fr)	1925-05-11

Country Status (5)

Country	Link
US (3)	US1722007A (fr)
BE (3)	BE335673A (fr)
DE (2)	DE463897C (fr)
FR (3)	FR613216A (fr)
GB (3)	GB256677A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE943412C (de) *	1951-06-13	1956-05-17	Elbau Elektrotechnik Aappbau	Schutzkoerper fuer Schallstrahler
DE949406C (de) *	1953-06-07	1956-09-20	Wilhelm Silberkuhl Dipl Ing	Tonschrank mit mehreren Lautsprechern, durch die Resonatoren angeregt werden
US3015366A (en) *	1956-12-14	1962-01-02	George M Bishop	Speaker system

0
- BE BE335674D patent/BE335674A/xx unknown
- BE BE335672D patent/BE335672A/xx unknown
- BE BE335673D patent/BE335673A/xx unknown
1925
- 1925-05-11 GB GB12239/25A patent/GB256677A/en not_active Expired
- 1925-09-30 GB GB24338/25A patent/GB261154A/en not_active Expired
- 1925-09-30 GB GB5519/26A patent/GB259103A/en not_active Expired
1926
- 1926-03-15 FR FR613216D patent/FR613216A/fr not_active Expired
- 1926-03-19 US US96008A patent/US1722007A/en not_active Expired - Lifetime
- 1926-03-19 US US96009A patent/US1722008A/en not_active Expired - Lifetime
- 1926-03-19 US US96010A patent/US1730286A/en not_active Expired - Lifetime
- 1926-03-22 FR FR613218D patent/FR613218A/fr not_active Expired
- 1926-03-22 FR FR613217D patent/FR613217A/fr not_active Expired
- 1926-05-21 DE DEO15711D patent/DE463897C/de not_active Expired
- 1926-05-27 DE DEO15726D patent/DE463898C/de not_active Expired

Also Published As

Publication number	Publication date
FR613217A (fr)	1926-11-12
DE463897C (de)	1928-08-06
US1730286A (en)	1929-10-01
DE463898C (de)	1928-08-06
BE335672A (fr)
US1722007A (en)	1929-07-23
GB261154A (en)	1926-11-18
FR613216A (fr)	1926-11-12
BE335674A (fr)
US1722008A (en)	1929-07-23
FR613218A (fr)	1926-11-12
GB256677A (en)	1926-08-11
GB259103A (en)	1926-10-07

Publication	Publication Date	Title
AT108862B (fr)	1928-02-10
AT107490B (fr)	1927-10-10
FR597513A (fr)	1925-11-23
FR29203E (fr)	1925-07-09
AT108975B (fr)	1928-02-25
FR608546A (fr)	1926-07-28
AT108642B (fr)	1928-01-25
AT108864B (fr)	1928-02-10
AT108860B (fr)	1928-02-10
AT99321B (fr)	1925-02-25
FR29445E (fr)	1925-07-27
FR586251A (fr)	1925-03-20
FR591076A (fr)	1925-06-27
AT108056B (fr)	1927-11-25
BE329122A (fr)	1925-10-15
BE331135A (fr)	1925-12-31
BE330611A (fr)	1925-12-31
BE325119A (fr)	1925-06-19
BE248750A (fr)
BE331763A (fr)
BE268047A (fr)
BE256737A (fr)
BE331348A (fr)
BE331402A (fr)
BE331413A (fr)