DE3580359D1 - Laermgenerator. - Google Patents

Laermgenerator.

Info

Publication number
DE3580359D1
DE3580359D1 DE8585303369T DE3580359T DE3580359D1 DE 3580359 D1 DE3580359 D1 DE 3580359D1 DE 8585303369 T DE8585303369 T DE 8585303369T DE 3580359 T DE3580359 T DE 3580359T DE 3580359 D1 DE3580359 D1 DE 3580359D1
Authority
DE
Germany
Prior art keywords
noise generator
noise
generator
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
DE8585303369T
Other languages
English (en)
Inventor
John Henry Woolley
Robert Westley
Carl Peter Swail
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.)
National Research Council of Canada
Original Assignee
National Research Council of Canada
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 National Research Council of Canada filed Critical National Research Council of Canada
Application granted granted Critical
Publication of DE3580359D1 publication Critical patent/DE3580359D1/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
    • 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
    • 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
    • G10K5/00—Whistles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
DE8585303369T 1985-05-13 1985-05-13 Laermgenerator. Expired - Fee Related DE3580359D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19850303369 EP0205680B1 (de) 1985-05-13 1985-05-13 Lärmgenerator

Publications (1)

Publication Number Publication Date
DE3580359D1 true DE3580359D1 (de) 1990-12-06

Family

ID=8194224

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585303369T Expired - Fee Related DE3580359D1 (de) 1985-05-13 1985-05-13 Laermgenerator.

Country Status (2)

Country Link
EP (1) EP0205680B1 (de)
DE (1) DE3580359D1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533373A (en) * 1967-07-07 1970-10-13 Cleveland Technical Center Inc Modulated signal generator
US3835810A (en) * 1969-09-04 1974-09-17 Energy Sciences Inc Pressure wave mixing
US3713417A (en) * 1971-07-26 1973-01-30 M Shugart Air operated ultrasonic transducer

Also Published As

Publication number Publication date
EP0205680B1 (de) 1990-10-31
EP0205680A1 (de) 1986-12-30

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Legal Events

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