DE3888534D1 - Luftbetriebener niederfrequenz-schallgenerator mit positiver rückkopplung. - Google Patents

Luftbetriebener niederfrequenz-schallgenerator mit positiver rückkopplung.

Info

Publication number
DE3888534D1
DE3888534D1 DE88903445T DE3888534T DE3888534D1 DE 3888534 D1 DE3888534 D1 DE 3888534D1 DE 88903445 T DE88903445 T DE 88903445T DE 3888534 T DE3888534 T DE 3888534T DE 3888534 D1 DE3888534 D1 DE 3888534D1
Authority
DE
Germany
Prior art keywords
low frequency
sound generator
positive feedback
frequency sound
air low
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 - Fee Related
Application number
DE88903445T
Other languages
English (en)
Other versions
DE3888534T2 (de
Inventor
Mats Olsson
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.)
Infrasonik AB
Original Assignee
Infrasonik AB
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 Infrasonik AB filed Critical Infrasonik AB
Publication of DE3888534D1 publication Critical patent/DE3888534D1/de
Application granted granted Critical
Publication of DE3888534T2 publication Critical patent/DE3888534T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10K7/00—Sirens
    • G10K7/06—Sirens in which the sound-producing member is driven by a fluid, e.g. by a compressed gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/20—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of a vibrating fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00—Cleaning by vibration or pressure waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)
DE3888534T 1987-04-08 1988-04-08 Luftbetriebener niederfrequenz-schallgenerator mit positiver rückkopplung. Expired - Fee Related DE3888534T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8701461A SE457240B (sv) 1987-04-08 1987-04-08 Luftdriven positivt aaterkopplad laagfrekvensljudgenerator
PCT/SE1988/000172 WO1988007894A1 (en) 1987-04-08 1988-04-08 Air-driven low-frequency sound generator with positive feedback system

Publications (2)

Publication Number Publication Date
DE3888534D1 true DE3888534D1 (de) 1994-04-21
DE3888534T2 DE3888534T2 (de) 1994-10-27

Family

ID=20368137

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3888534T Expired - Fee Related DE3888534T2 (de) 1987-04-08 1988-04-08 Luftbetriebener niederfrequenz-schallgenerator mit positiver rückkopplung.

Country Status (7)

Country Link
US (1) US5005511A (de)
EP (1) EP0360806B1 (de)
JP (1) JP2610184B2 (de)
AU (1) AU614516B2 (de)
DE (1) DE3888534T2 (de)
SE (1) SE457240B (de)
WO (1) WO1988007894A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE462374B (sv) * 1988-06-29 1990-06-18 Infrasonik Ab Reglerstyrd motordriven laagfrekvensljudgenerator
SE463785B (sv) * 1988-11-01 1991-01-21 Infrasonik Ab Foerfarande och anordning foer att med hjaelp av laagfrekvent ljud forcera vaermetransmission mellan kroppar och gaser
JPH10502135A (ja) * 1994-05-02 1998-02-24 オウェンス コーニング 高速回転ドラム及び低周波音分配を使用するウールパック形成方法
US5595585A (en) * 1994-05-02 1997-01-21 Owens Corning Fiberglas Technology, Inc. Low frequency sound distribution of rotary fiberizer veils
SE524605C2 (sv) * 2002-07-22 2004-08-31 Mats Olsson Luftdriven lågfrekvensljudgenerator samt metod för att reglera viloläget hos en kolv ingående i en dylik
DE10341477A1 (de) * 2003-09-05 2005-03-31 Riehle, Rainer, Dipl.-Ing. Schallgenerator zur Erzeugung in Rohrleitungen eines Wasser- oder Gasversorgungssystems ausbreitungsfähiger Schallimpulse
WO2011015954A1 (en) * 2009-08-03 2011-02-10 Koninklijke Philips Electronics, N.V. Low restriction resonator with adjustable frequency characteristics for use in compressor nebulizer systems
WO2014163556A1 (en) * 2013-04-04 2014-10-09 Infrafone Ab A vibration damper for reducing vibrations of a low frequency sound generator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB138532A (en) * 1919-05-28 1920-02-12 Louis Chollet Improvements in fluid-pressure operated sound signalling devices
DE496622C (de) * 1928-02-28 1930-04-24 Helge Sven Albert Rydberg Schallsignalapparat zur Erzeugung hoher Toene von grosser Lautstaerke
DE577517C (de) * 1930-05-23 1933-06-01 Karl Gold Walzenbrikettpresse mit in einem besonderen Pressring von geringerem Durchmesser als der Laufring exzentrisch angeordneter Presswalze
GB1025549A (en) * 1964-03-16 1966-04-14 Kockums Mekaniska Verkstads Ab Improvements in or relating to pressure-gas operated horns
US4020693A (en) * 1976-04-12 1977-05-03 The United States Of America As Represented By The United States Energy Research And Development Administration Acoustic transducer for nuclear reactor monitoring
EP0006833B1 (de) * 1978-07-03 1983-09-14 Mats Olsson Konsult Ab Niederfrequenz Schallgeber

Also Published As

Publication number Publication date
EP0360806B1 (de) 1994-03-16
WO1988007894A1 (en) 1988-10-20
AU1595988A (en) 1988-11-04
SE457240B (sv) 1988-12-12
JP2610184B2 (ja) 1997-05-14
US5005511A (en) 1991-04-09
SE8701461L (sv) 1988-10-09
JPH02502889A (ja) 1990-09-13
EP0360806A1 (de) 1990-04-04
AU614516B2 (en) 1991-09-05
SE8701461D0 (sv) 1987-04-08
DE3888534T2 (de) 1994-10-27

Similar Documents

Publication Publication Date Title
DE3887841D1 (de) Mikrophon mit Frequenzanhebung.
DE68910139D1 (de) Mikrophon mit akustischer Frequenzanhebung.
DE68909348D1 (de) Schalldämmplatte.
DE68917244D1 (de) Schrittmacher mit Frequenzstabilisation.
DE3870475D1 (de) Tonfrequenzverstaerker.
DE68908227D1 (de) Wand mit kuehlungsbohrungen.
DE59009508D1 (de) Generator mit zusatzlüfter.
DE68913405D1 (de) Stromquellenschaltung.
DE3886585D1 (de) Gesteuerte Hochfrequenzleistungsversorgung.
DE68921517D1 (de) Tonwiedergabegerät.
DE68910154D1 (de) Spielzeugeinheit.
DE3584911D1 (de) Lautsprecher mit mehreren antrieben.
DE3861239D1 (de) Gaserzeuger.
DE69013005D1 (de) Spielzeug mit zugänglichem innenraum.
DE68914083D1 (de) Hörgerät mit Pfeifunterdrückung.
DE69108466D1 (de) Hochfrequenzleistungsverstärker mit hohem Wirkungsgrad.
DE68921897D1 (de) Hochfrequenz-Heizapparat.
DE58909301D1 (de) Hochfrequenz-Leistungsgenerator.
DE68913192D1 (de) Laser-frequenzsteuerung.
NO891973L (no) Kraftgenerator.
DE3864907D1 (de) Wellenerzeuger.
NO881726D0 (no) Hoeytrykks skumslamgenerator.
DE68911716D1 (de) Stromquellenschaltung.
NO860446L (no) Akustisk generator.
DE3888534D1 (de) Luftbetriebener niederfrequenz-schallgenerator mit positiver rückkopplung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee