IT1087809B - SPEAKER. - Google Patents

SPEAKER.

Info

Publication number: IT1087809B
Authority: IT; Italy
Prior art keywords: speaker
Prior art date: 1976-10-29

Application number

IT29146/77A

Other languages

Italian (it)

Original Assignee

Heil Oskar

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.)

1976-10-29

Filing date

1977-10-28

Publication date

1985-06-04

1977-10-28 Application filed by Heil Oskar filed Critical Heil Oskar

1985-06-04 Application granted granted Critical

1985-06-04 Publication of IT1087809B publication Critical patent/IT1087809B/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
- 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

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Multimedia (AREA)
Diaphragms For Electromechanical Transducers (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

IT29146/77A 1976-10-29 1977-10-28 SPEAKER. IT1087809B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2649771A DE2649771C3 (en)	1976-10-29	1976-10-29	speaker

Publications (1)

Publication Number	Publication Date
IT1087809B true IT1087809B (en)	1985-06-04

Family

ID=5992042

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT29146/77A IT1087809B (en)	1976-10-29	1977-10-28	SPEAKER.

Country Status (8)

Country	Link
JP (1)	JPS5391723A (en)
AT (1)	AT361999B (en)
DE (1)	DE2649771C3 (en)
DK (1)	DK473077A (en)
FR (1)	FR2369770A1 (en)
GB (1)	GB1595320A (en)
IT (1)	IT1087809B (en)
SE (1)	SE7712174L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2941644C2 (en) *	1978-10-17	1982-11-11	Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka	Loudspeaker cone and process for their manufacture
DE3036149C2 (en) *	1980-09-08	1983-04-07	Werner Falkenberg	Electroacoustic converter with vibration generators that oscillate against each other
DE3722832A1 (en) *	1987-07-03	1989-01-12	Electronic Werke Deutschland	Diaphragm for a loudspeaker
DE102020120841A1 (en)	2020-08-07	2022-02-10	noliroo technology UG (haftungsbeschränkt)	Apparatus for use with acoustic transducers, acoustic transducer having the apparatus, and system using acoustic transducers and apparatus
DE202020104557U1 (en)	2020-08-07	2021-11-11	noliroo technology UG (haftungsbeschränkt)	Device for use on acoustic transducers, acoustic transducers with the device and system using acoustic transducers and devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1053556A (en) *		1900-01-01
GB273459A (en) *	1926-06-04	1927-07-07	William John Rickets	Improvements in or relating to apparatus suitable for the reproduction of sound
DE805283C (en) *	1949-07-07	1951-05-15	Wilhelm Petersen	speaker
JPS4829420A (en) *	1971-08-20	1973-04-19

1976
- 1976-10-29 DE DE2649771A patent/DE2649771C3/en not_active Expired
1977
- 1977-10-24 AT AT758677A patent/AT361999B/en not_active IP Right Cessation
- 1977-10-25 DK DK473077A patent/DK473077A/en unknown
- 1977-10-27 FR FR7732440A patent/FR2369770A1/en not_active Withdrawn
- 1977-10-28 SE SE7712174A patent/SE7712174L/en unknown
- 1977-10-28 IT IT29146/77A patent/IT1087809B/en active
- 1977-10-29 JP JP13018577A patent/JPS5391723A/en active Pending
- 1977-10-31 GB GB45247/77A patent/GB1595320A/en not_active Expired

Also Published As

Publication number	Publication date
GB1595320A (en)	1981-08-12
DE2649771B2 (en)	1979-03-29
ATA758677A (en)	1980-09-15
FR2369770A1 (en)	1978-05-26
DE2649771C3 (en)	1979-11-22
DE2649771A1 (en)	1978-05-03
DK473077A (en)	1978-04-30
JPS5391723A (en)	1978-08-11
SE7712174L (en)	1978-04-30
AT361999B (en)	1981-04-10

Publication	Publication Date	Title
NL188880C (en)	1992-10-16	SPEAKER.
NL7701434A (en)	1977-08-12	SPEAKER SYSTEM.
SE7703203L (en)	1977-09-23	SPEAKERS
NL7709759A (en)	1978-03-07	SPEAKER HOUSING.
NL7706404A (en)	1977-12-13	SPEAKER.
NL7702202A (en)	1978-03-29	SPEAKER SYSTEM.
IT1087809B (en)	1985-06-04	SPEAKER.
NL7709527A (en)	1978-03-06	SPEAKER SYSTEM.
SE7708200L (en)	1978-02-28	SPEAKERS
ES223988Y (en)	1977-05-01	PORTA-FILERS.
ES222715Y (en)	1977-03-16	SHOE-SKATE.
ES222964Y (en)	1977-04-01	IMPROVED SPEAKER.
DK138827B (en)	1978-11-06	Narresut.
ES219730Y (en)	1977-02-01	MICROPHONE.
ES218613Y (en)	1977-03-01	EXTRA FLAT SPEAKER.
ES223865Y (en)	1977-07-01	PERFECTED SPEAKER.
ES231123Y (en)	1978-05-16	PERFECTED SPEAKER.
SE397764B (en)	1977-11-14	SPEAKERS
ES218437Y (en)	1977-01-16	TOY-ADVERTISING CLAIM.
ES222581Y (en)	1977-03-16	ARMCHAIR-WASHER.
ES221073Y (en)	1977-03-01	BURLETE.
ES224337Y (en)	1977-05-16	THERMOELECTRICA PANERA.
ES220911Y (en)	1977-03-01	QUESERA.
ES218287Y (en)	1977-01-01	PLATE-COVER.
ES218684Y (en)	1977-01-16	GREENGROCER.