AU2003247312A1 - An air-driven low frequency sound generator and a method for regulating the piston in such a generator - Google Patents

An air-driven low frequency sound generator and a method for regulating the piston in such a generator

Info

Publication number
AU2003247312A1
AU2003247312A1 AU2003247312A AU2003247312A AU2003247312A1 AU 2003247312 A1 AU2003247312 A1 AU 2003247312A1 AU 2003247312 A AU2003247312 A AU 2003247312A AU 2003247312 A AU2003247312 A AU 2003247312A AU 2003247312 A1 AU2003247312 A1 AU 2003247312A1
Authority
AU
Australia
Prior art keywords
piston
cylinder
generator
sound
low frequency
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.)
Abandoned
Application number
AU2003247312A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU2003247312A1 publication Critical patent/AU2003247312A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
    • 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
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses

Abstract

The invention relates to an air-driven, low frequency sound generator comprising an open resonator (2) working as a sound emitter and also comprising a feeder unit, for the generation of standing, gas-borne sound waves, which sound waves produce a varying sound pressure inside said resonator. The feeder unit includes a cylinder (5) with one open end facing said open resonator and communicating therewith, further including a piston (4) performing a reciprocating movement inside said cylinder, and also including a surge tank (7), at least partly surrounding said cylinder and connected to a first pressure gas source (9), for feeding pressure gas into the surge tank and further into said cylinder via at least one connection opening (10) arranged in a wall of said cylinder. The sound generator further comprises means (14, 15) for bringing said piston (4) to a stand-still position, in which said connection opening is blocked by the piston, by exerting an additional pressure on the upper end of said piston. The invention also relates to a corresponding method.
AU2003247312A 2002-07-22 2003-07-21 An air-driven low frequency sound generator and a method for regulating the piston in such a generator Abandoned AU2003247312A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0202291A SE524605C2 (en) 2002-07-22 2002-07-22 Air-driven low frequency sound generator and method of controlling the resting position of a piston included in such
SE0202291-1 2002-07-22
PCT/SE2003/001234 WO2004009255A1 (en) 2002-07-22 2003-07-21 An air-driven low frequency sound generator and a method for regulating the piston in such a generator

Publications (1)

Publication Number Publication Date
AU2003247312A1 true AU2003247312A1 (en) 2004-02-09

Family

ID=20288610

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003247312A Abandoned AU2003247312A1 (en) 2002-07-22 2003-07-21 An air-driven low frequency sound generator and a method for regulating the piston in such a generator

Country Status (8)

Country Link
EP (1) EP1542810B1 (en)
AT (1) ATE317731T1 (en)
AU (1) AU2003247312A1 (en)
DE (1) DE60303608T2 (en)
DK (1) DK1542810T3 (en)
ES (1) ES2257695T3 (en)
SE (1) SE524605C2 (en)
WO (1) WO2004009255A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10341477A1 (en) * 2003-09-05 2005-03-31 Riehle, Rainer, Dipl.-Ing. Sound generator for generating in pipelines of a water or gas supply system propagatable sound pulses
US20160033215A1 (en) * 2013-04-04 2016-02-04 Infrafone Ab A purge air cyclone for use in a low frequency sound generator
EP2981368A4 (en) * 2013-04-04 2016-09-21 Infrafone Ab A vibration damper for reducing vibrations of a low frequency sound generator
SE540254C2 (en) * 2016-10-31 2018-05-15 Olsson Mats An infrasound generator for enhancing the combustion of solid fuels
US10619037B2 (en) 2017-11-21 2020-04-14 Johns Manville Roofing compositions comprising linear low density polyethylene
SE2130031A1 (en) * 2021-02-02 2022-08-03 Mats Anders Olsson A revolving valve for feeding air pulses to a resonance tube for generating low-frequency sound and a method for feeding these pulses at the resonance frequency of the resonance tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2351163A (en) * 1943-01-21 1944-06-13 Diamond Power Speciality Boiler cleaner
ATE4662T1 (en) * 1978-07-03 1983-09-15 Mats Olsson Konsult Ab LOW FREQUENCY SOUNDER.
SE457240B (en) * 1987-04-08 1988-12-12 Infrasonik Ab AIR-DRIVE POSITIVE AATER COUPLED LOW FREQUENCY SOUND GENERATOR
GB8717312D0 (en) * 1987-07-22 1987-08-26 Jerlin R R Sound generating system

Also Published As

Publication number Publication date
SE0202291D0 (en) 2002-07-22
DE60303608D1 (en) 2006-04-20
EP1542810A1 (en) 2005-06-22
SE524605C2 (en) 2004-08-31
ES2257695T3 (en) 2006-08-01
EP1542810B1 (en) 2006-02-15
SE0202291L (en) 2004-01-23
WO2004009255A1 (en) 2004-01-29
DE60303608T2 (en) 2006-12-07
DK1542810T3 (en) 2006-05-15
ATE317731T1 (en) 2006-03-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase