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FR934086A - Improvements to methods and apparatus for producing compression waves in a fluid such as air or gas - Google Patents

Improvements to methods and apparatus for producing compression waves in a fluid such as air or gas

Info

Publication number
FR934086A
FR934086A FR934086DA FR934086A FR 934086 A FR934086 A FR 934086A FR 934086D A FR934086D A FR 934086DA FR 934086 A FR934086 A FR 934086A
Authority
FR
France
Prior art keywords
fluid
gas
methods
air
compression waves
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
Application number
Other languages
French (fr)
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.)
Ultrasonic Corp
Original Assignee
Ultrasonic Corp
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 Ultrasonic Corp filed Critical Ultrasonic Corp
Application granted granted Critical
Publication of FR934086A publication Critical patent/FR934086A/en
Expired 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
    • G10K7/005—Ultrasonic sirens

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR934086D 1945-10-25 1946-10-01 Improvements to methods and apparatus for producing compression waves in a fluid such as air or gas Expired FR934086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US934086XA 1945-10-25 1945-10-25

Publications (1)

Publication Number Publication Date
FR934086A true FR934086A (en) 1948-05-11

Family

ID=22238762

Family Applications (1)

Application Number Title Priority Date Filing Date
FR934086D Expired FR934086A (en) 1945-10-25 1946-10-01 Improvements to methods and apparatus for producing compression waves in a fluid such as air or gas

Country Status (1)

Country Link
FR (1) FR934086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117923B (en) * 1955-12-16 1961-11-23 Jean Maurice Blanchard Device for generating sound and ultrasonic vibrations in gases and liquids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117923B (en) * 1955-12-16 1961-11-23 Jean Maurice Blanchard Device for generating sound and ultrasonic vibrations in gases and liquids

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