FI823866A0 - TVAONGSSTYRD LJUDALSTRARE - Google Patents

TVAONGSSTYRD LJUDALSTRARE

Info

Publication number
FI823866A0
FI823866A0 FI823866A FI823866A FI823866A0 FI 823866 A0 FI823866 A0 FI 823866A0 FI 823866 A FI823866 A FI 823866A FI 823866 A FI823866 A FI 823866A FI 823866 A0 FI823866 A0 FI 823866A0
Authority
FI
Finland
Prior art keywords
tvaongsstyrd
ljudalstrare
tvaongsstyrd ljudalstrare
Prior art date
Application number
FI823866A
Other languages
Finnish (fi)
Other versions
FI823866L (en
FI71622C (en
FI71622B (en
Inventor
Per Boerje Fransman
Original Assignee
Ekstroems Vaermetek
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 Ekstroems Vaermetek filed Critical Ekstroems Vaermetek
Publication of FI823866L publication Critical patent/FI823866L/en
Publication of FI823866A0 publication Critical patent/FI823866A0/en
Application granted granted Critical
Publication of FI71622B publication Critical patent/FI71622B/en
Publication of FI71622C publication Critical patent/FI71622C/en

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
    • G10K7/02—Sirens in which the sound-producing member is rotated manually or by a motor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Toys (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Stringed Musical Instruments (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
FI823866A 1980-10-13 1982-11-11 Forced controlled audio generators. FI71622C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8007150A SE425597B (en) 1980-10-13 1980-10-13 FORCED CONTROL SOUND STRUCTORS FOR THE INFRALUE AREA
SE8007150 1980-10-13
SE8100296 1981-10-13
PCT/SE1981/000296 WO1982001328A1 (en) 1980-10-13 1981-10-13 Positively controlled sound generator

Publications (4)

Publication Number Publication Date
FI823866L FI823866L (en) 1982-11-11
FI823866A0 true FI823866A0 (en) 1982-11-11
FI71622B FI71622B (en) 1986-10-10
FI71622C FI71622C (en) 1987-01-19

Family

ID=20341967

Family Applications (1)

Application Number Title Priority Date Filing Date
FI823866A FI71622C (en) 1980-10-13 1982-11-11 Forced controlled audio generators.

Country Status (6)

Country Link
EP (1) EP0069741B1 (en)
DK (1) DK152412C (en)
FI (1) FI71622C (en)
NO (1) NO152589C (en)
SE (1) SE425597B (en)
WO (1) WO1982001328A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE451115B (en) * 1985-01-16 1987-09-07 Ulveco Kockum Sonic Ab INSTALLATION FOR SOOTHING OF BOILERS OR SIMILAR, INCLUDING A MULTIPLE LOW-FREQUENT SOUND ALREADY DEVICES
SE457822B (en) * 1986-11-28 1989-01-30 Svenska Rotor Maskiner Ab PROCEDURES FOR AUTHORIZATION OF SELECTIVELY CONTROLLED PRESSURE PULSES IN A GAS MASS AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
WO1989011042A1 (en) * 1988-05-05 1989-11-16 Birger Pettersson A method for producing pressure pulses in a mass of gas and a device for performing the method
SE462374B (en) * 1988-06-29 1990-06-18 Infrasonik Ab CONTROL-CONTROLLED MOTOR DRIVE LOW FREQUENCY SOUND GENERATOR
FI972252A (en) * 1997-05-28 1998-11-29 Ulf Krogars Procedure and facility for acoustic cleaning
FI108810B (en) * 2000-07-06 2002-03-28 Nirania Ky Plant and method for streamlining combustion and heat transfer
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 (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE245518C (en) *
US1323826A (en) * 1919-12-02 Fed Sign System Siren.
DE395023C (en) * 1922-12-10 1924-05-14 Max Maag Sound generator according to patent 367934 for the generation of tones of unchangeable pitch
US2407175A (en) * 1939-05-02 1946-09-03 Orlich Peter Echo sounding device
US2634701A (en) * 1948-07-30 1953-04-14 Russell A Gougeon Siren
DE1117923B (en) * 1955-12-16 1961-11-23 Jean Maurice Blanchard Device for generating sound and ultrasonic vibrations in gases and liquids
DE1209781B (en) * 1964-06-08 1966-01-27 Messerschmitt Ag Siren for generating pure sine waves and frequency-modulated sine waves of sound
FR1451123A (en) * 1965-10-26 1966-06-24 Signaling process and hydraulic siren with pulsed signals
DE1274937B (en) * 1967-04-07 1968-08-08 Entwicklungsring Sued G M B H Ultrasonic generator operated with pressure medium
DE2262948C3 (en) * 1972-12-22 1978-10-12 Karl 8000 Muenchen Kolar Compressed air siren
EP0006833B1 (en) * 1978-07-03 1983-09-14 Mats Olsson Konsult Ab Low-frequency sound generator

Also Published As

Publication number Publication date
NO821858L (en) 1982-06-04
SE8007150L (en) 1982-04-14
NO152589C (en) 1985-10-23
FI823866L (en) 1982-11-11
EP0069741A1 (en) 1983-01-19
EP0069741B1 (en) 1986-03-12
DK152412C (en) 1988-07-25
NO152589B (en) 1985-07-15
SE425597B (en) 1982-10-18
DK250482A (en) 1982-06-03
WO1982001328A1 (en) 1982-04-29
FI71622C (en) 1987-01-19
DK152412B (en) 1988-02-29
FI71622B (en) 1986-10-10

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: EKSTROEMS VAERMETEKNISKA AB