FR2274875B1 - - Google Patents

Info

Publication number
FR2274875B1
FR2274875B1 FR7420693A FR7420693A FR2274875B1 FR 2274875 B1 FR2274875 B1 FR 2274875B1 FR 7420693 A FR7420693 A FR 7420693A FR 7420693 A FR7420693 A FR 7420693A FR 2274875 B1 FR2274875 B1 FR 2274875B1
Authority
FR
France
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
FR7420693A
Other languages
French (fr)
Other versions
FR2274875A1 (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.)
SOFRAIR
Original Assignee
SOFRAIR
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 SOFRAIR filed Critical SOFRAIR
Priority to FR7420693A priority Critical patent/FR2274875A1/fr
Publication of FR2274875A1 publication Critical patent/FR2274875A1/fr
Application granted granted Critical
Publication of FR2274875B1 publication Critical patent/FR2274875B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
    • 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
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Ventilation (AREA)
FR7420693A 1974-06-14 1974-06-14 Perfectionnements aux installations de ventilation comportant silencieux et registre d'isolement Granted FR2274875A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7420693A FR2274875A1 (fr) 1974-06-14 1974-06-14 Perfectionnements aux installations de ventilation comportant silencieux et registre d'isolement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420693A FR2274875A1 (fr) 1974-06-14 1974-06-14 Perfectionnements aux installations de ventilation comportant silencieux et registre d'isolement

Publications (2)

Publication Number Publication Date
FR2274875A1 FR2274875A1 (fr) 1976-01-09
FR2274875B1 true FR2274875B1 (enExample) 1976-12-24

Family

ID=9140065

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420693A Granted FR2274875A1 (fr) 1974-06-14 1974-06-14 Perfectionnements aux installations de ventilation comportant silencieux et registre d'isolement

Country Status (1)

Country Link
FR (1) FR2274875A1 (enExample)

Also Published As

Publication number Publication date
FR2274875A1 (fr) 1976-01-09

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Legal Events

Date Code Title Description
ST Notification of lapse