GB2000668B - Loudspeaker horn - Google Patents

Loudspeaker horn

Info

Publication number: GB2000668B
Authority: GB; United Kingdom
Prior art keywords: loudspeaker horn; horn; loudspeaker
Prior art date: 1977-06-27
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

GB7827976A

Other versions

GB2000668A (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.)

ALTEC CORP

Original Assignee

ALTEC CORP

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.)

1977-06-27

Filing date

1978-06-27

Publication date

1982-06-23

1978-06-27 Application filed by ALTEC CORP filed Critical ALTEC CORP

1979-01-10 Publication of GB2000668A publication Critical patent/GB2000668A/en

1982-06-23 Application granted granted Critical

1982-06-23 Publication of GB2000668B publication Critical patent/GB2000668B/en

Status Expired legal-status Critical Current

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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Diaphragms For Electromechanical Transducers (AREA)

GB7827976A 1977-06-27 1978-06-27 Loudspeaker horn Expired GB2000668B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US81064277A	1977-06-27	1977-06-27

Publications (2)

Publication Number	Publication Date
GB2000668A GB2000668A (en)	1979-01-10
GB2000668B true GB2000668B (en)	1982-06-23

Family

ID=25204323

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB7827976A Expired GB2000668B (en)	1977-06-27	1978-06-27	Loudspeaker horn

Country Status (5)

Country	Link
JP (1)	JPS5412724A (en)
CA (1)	CA1085745A (en)
DE (1)	DE2827390C2 (en)
FR (1)	FR2396485A1 (en)
GB (1)	GB2000668B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS58158873U (en) *	1982-04-19	1983-10-22	三菱電機株式会社	piping bracket
EP0493450A4 (en) *	1989-09-22	1993-05-12	Antony Leonard Trufitt	Planar speakers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1623561A (en) *	1924-02-04	1927-04-05	Westinghouse Electric & Mfg Co	Acoustic horn
GB317339A (en) *	1928-04-14	1929-08-14	Frederick William Lanchester	An improved telephonic loud speaker
US2537141A (en) *	1945-06-15	1951-01-09	Paul W Klipsch	Loud-speaker horn
DE940596C (en) *	1949-10-30	1956-03-22	Siemens Ag	Wooden funnels for loudspeakers, especially bass funnels
US2690231A (en) *	1950-03-09	1954-09-28	Univ Loudspeakers Inc	Acoustic device
FR1024291A (en) *	1950-09-05	1953-03-31		Advanced loudspeaker horn
US4071112A (en) *	1975-09-30	1978-01-31	Electro-Voice, Incorporated	Horn loudspeaker

1978
- 1978-06-08 CA CA304,979A patent/CA1085745A/en not_active Expired
- 1978-06-19 JP JP7479878A patent/JPS5412724A/en active Granted
- 1978-06-22 DE DE19782827390 patent/DE2827390C2/en not_active Expired
- 1978-06-26 FR FR7819032A patent/FR2396485A1/en active Granted
- 1978-06-27 GB GB7827976A patent/GB2000668B/en not_active Expired

Also Published As

Publication number	Publication date
FR2396485B1 (en)	1984-03-23
CA1085745A (en)	1980-09-16
DE2827390C2 (en)	1983-11-10
JPS5412724A (en)	1979-01-30
FR2396485A1 (en)	1979-01-26
DE2827390A1 (en)	1979-01-18
GB2000668A (en)	1979-01-10
JPS576875B2 (en)	1982-02-06

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Legal Events

Date	Code	Title	Description
1986-02-26	PCNP	Patent ceased through non-payment of renewal fee