FR910923A - Device for soundproofing ventilation ducts - Google Patents

Device for soundproofing ventilation ducts

Info

Publication number
FR910923A
FR910923A FR910923DA FR910923A FR 910923 A FR910923 A FR 910923A FR 910923D A FR910923D A FR 910923DA FR 910923 A FR910923 A FR 910923A
Authority
FR
France
Prior art keywords
soundproofing
ventilation ducts
ducts
ventilation
soundproofing ventilation
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)
Inventor
De Rosen
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.)
LES TRAVAUX SOUTERRAINS
Original Assignee
LES TRAVAUX SOUTERRAINS
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 LES TRAVAUX SOUTERRAINS filed Critical LES TRAVAUX SOUTERRAINS
Application granted granted Critical
Publication of FR910923A publication Critical patent/FR910923A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR910923D 1944-12-23 1944-12-23 Device for soundproofing ventilation ducts Expired FR910923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR910923T 1944-12-23

Publications (1)

Publication Number Publication Date
FR910923A true FR910923A (en) 1946-06-24

Family

ID=9415378

Family Applications (1)

Application Number Title Priority Date Filing Date
FR910923D Expired FR910923A (en) 1944-12-23 1944-12-23 Device for soundproofing ventilation ducts

Country Status (1)

Country Link
FR (1) FR910923A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207258A (en) * 1964-03-17 1965-09-21 Pittsburgh Corning Corp Sound absorbing systems
AT391755B (en) * 1983-09-22 1990-11-26 Rox Lufttechnische Geraetebau Appliance silencer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207258A (en) * 1964-03-17 1965-09-21 Pittsburgh Corning Corp Sound absorbing systems
AT391755B (en) * 1983-09-22 1990-11-26 Rox Lufttechnische Geraetebau Appliance silencer

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