GB2023373A – Plasma loudspeaker
– Google Patents
GB2023373A – Plasma loudspeaker
– Google Patents
Plasma loudspeaker
Info
Publication number
GB2023373A
GB2023373A
GB7910655A
GB7910655A
GB2023373A
GB 2023373 A
GB2023373 A
GB 2023373A
GB 7910655 A
GB7910655 A
GB 7910655A
GB 7910655 A
GB7910655 A
GB 7910655A
GB 2023373 A
GB2023373 A
GB 2023373A
Authority
GB
United Kingdom
Prior art keywords
plasma loudspeaker
loudspeaker
plasma
Prior art date
1978-04-05
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.)
Granted
Application number
GB7910655A
Other versions
GB2023373B
(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.)
Hill A E
Original Assignee
Hill A E
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.)
1978-04-05
Filing date
1979-03-27
Publication date
1979-12-28
1979-03-27
Application filed by Hill A E
filed
Critical
Hill A E
1979-12-28
Publication of GB2023373A
publication
Critical
patent/GB2023373A/en
1983-02-09
Application granted
granted
Critical
1983-02-09
Publication of GB2023373B
publication
Critical
patent/GB2023373B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G10K7/00—Sirens
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
H01J37/32—Gas-filled discharge tubes
H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
H01J37/32055—Arc discharge
H—ELECTRICITY
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
H05H1/00—Generating plasma; Handling plasma
H05H1/24—Generating plasma
H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
GB7910655A
1978-04-05
1979-03-27
Plasma loudspeaker
Expired
GB2023373B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US05/893,667
US4219705A
(en)
1978-04-05
1978-04-05
Sound production using large volume plasmas
Publications (2)
Publication Number
Publication Date
GB2023373A
true
GB2023373A
(en)
1979-12-28
GB2023373B
GB2023373B
(en)
1983-02-09
Family
ID=25401888
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7910655A
Expired
GB2023373B
(en)
1978-04-05
1979-03-27
Plasma loudspeaker
Country Status (6)
Country
Link
US
(1)
US4219705A
(en)
JP
(2)
JPS54143225A
(en)
CA
(1)
CA1146258A
(en)
DE
(1)
DE2913804C2
(en)
FR
(1)
FR2422314A1
(en)
GB
(1)
GB2023373B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2145310A
(en)
*
1981-03-19
1985-03-20
Loughborough Consult Ltd
Generating a plurality of electric discharges, plasma torches
Families Citing this family (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE19549527C2
(en)
*
1995-12-29
1999-10-21
Peus Systems Gmbh
Method and device for receiving sound signals, in particular short sound pulses
US6257365B1
(en)
*
1996-08-30
2001-07-10
Mediaphile Av Technologies, Inc.
Cone reflector/coupler speaker system and method
GB2403372B
(en)
*
2003-06-21
2007-03-21
Adam Richard Maurice Chambers
Loudspeaker
FR2861184B1
(en)
*
2003-10-17
2006-01-13
Eppra
METHOD FOR GENERATING DESIRED WAVE LENGTH RADIATION, AND DEVICE THEREOF
DE102005047079A1
(en)
*
2005-09-30
2007-04-05
Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
A fluorescent lamp has electrodes with a di-electric coating arranged in spiral pairs
JP2011514510A
(en)
*
2008-02-19
2011-05-06
ナノ ユーヴイ
Multiplexing method of pulse source
KR102033909B1
(en)
*
2012-11-16
2019-10-18
에너지 리퍼블릭 주식회사
Plasma processing apparatus with multi ballaster module
DE102013110266A1
(en)
*
2013-09-18
2015-04-16
Hegwein GmbH
Apparatus and method for monitoring a plasma torch
CN103634728A
(en)
*
2013-12-13
2014-03-12
韦威
Plasma loudspeaker
DE102014205695B4
(en)
*
2014-03-27
2016-01-28
Christof-Herbert Diener
Low-pressure plasma system with sequential control
GB2573570A
(en)
*
2018-05-11
2019-11-13
Univ Southampton
Hollow cathode apparatus
Family Cites Families (17)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB303175A
(en)
*
1927-12-29
1930-01-30
Siegmund Loewe
Loudspeaker arrangement
US2403990A
(en)
*
1942-08-01
1946-07-16
Bell Telephone Labor Inc
Compressional wave radiator
US2483768A
(en)
*
1944-06-15
1949-10-04
Rca Corp
Microwave-acoustic wave translator
GB659796A
(en)
*
1945-03-01
1951-10-31
Klein Siegfried
Method and device for transforming waves of audible, ultra-audible or infra-audible frequencies into modulations of an electric current, and conversely
US2863033A
(en)
*
1954-11-29
1958-12-02
Gen Electric
Temperature detector and method of making
US3022385A
(en)
*
1958-08-25
1962-02-20
Takis N Panay
Sound producer
US3230506A
(en)
*
1962-02-26
1966-01-18
Mhd Res Inc
Pressure pulsation generator
US3185778A
(en)
*
1962-05-01
1965-05-25
Giannini Scient Corp
Apparatus for producing sound
US3286226A
(en)
*
1965-01-18
1966-11-15
Edgerton Germeshausen & Grier
Underwater spark discharge sound-producing system
US3371309A
(en)
*
1965-06-10
1968-02-27
Navy Usa
Thermo-mechanical transducer
US3476887A
(en)
*
1966-04-26
1969-11-04
Arnold L Seligson
Ionic electro-acoustic transducer
US3518462A
(en)
*
1967-08-21
1970-06-30
Guidance Technology Inc
Fluid flow control system
US3516286A
(en)
*
1967-10-16
1970-06-23
United Aircraft Corp
Method and apparatus for generating an acoustic output from an ionized gas stream
US3565209A
(en)
*
1968-02-28
1971-02-23
United Aircraft Corp
Method and apparatus for generating an acoustic output from an ionized gas stream
CA871894A
(en)
*
1968-08-02
1971-05-25
Canadian Titanium Pigments Limited
Plasma arc heating apparatus
JPS5120020B2
(en)
*
1971-09-10
1976-06-22
JPS5168788A
(en)
*
1974-12-12
1976-06-14
Kazuo Akashi
Koshuhapurazumaenno hatsuseihoho
1978
1978-04-05
US
US05/893,667
patent/US4219705A/en
not_active
Expired – Lifetime
1979
1979-03-27
GB
GB7910655A
patent/GB2023373B/en
not_active
Expired
1979-04-02
CA
CA000324611A
patent/CA1146258A/en
not_active
Expired
1979-04-03
JP
JP3938979A
patent/JPS54143225A/en
active
Granted
1979-04-04
FR
FR7908525A
patent/FR2422314A1/en
active
Granted
1979-04-05
DE
DE2913804A
patent/DE2913804C2/en
not_active
Expired
1989
1989-02-21
JP
JP1041472A
patent/JPH02198300A/en
active
Pending
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2145310A
(en)
*
1981-03-19
1985-03-20
Loughborough Consult Ltd
Generating a plurality of electric discharges, plasma torches
GB2145591A
(en)
*
1981-03-19
1985-03-27
Loughborough Consult Ltd
Generating a plurality of electric discharges
GB2145589A
(en)
*
1981-03-19
1985-03-27
Loughborough Consult Ltd
Generating a plurality of electric discharges
Also Published As
Publication number
Publication date
FR2422314B1
(en)
1984-03-09
GB2023373B
(en)
1983-02-09
DE2913804C2
(en)
1986-03-27
JPH0313800B2
(en)
1991-02-25
US4219705A
(en)
1980-08-26
JPH02198300A
(en)
1990-08-06
CA1146258A
(en)
1983-05-10
DE2913804A1
(en)
1979-10-11
JPS54143225A
(en)
1979-11-08
FR2422314A1
(en)
1979-11-02
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Legal Events
Date
Code
Title
Description
1995-11-22
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19950327
