FI68697C - Anordning och foerfarande vid ljuddaempning av ventilationskanaler i bjaelklagselement - Google Patents

Anordning och foerfarande vid ljuddaempning av ventilationskanaler i bjaelklagselement Download PDF

Info

Publication number
FI68697C
FI68697C FI811637A FI811637A FI68697C FI 68697 C FI68697 C FI 68697C FI 811637 A FI811637 A FI 811637A FI 811637 A FI811637 A FI 811637A FI 68697 C FI68697 C FI 68697C
Authority
FI
Finland
Prior art keywords
duct
channels
ducts
connection
connections
Prior art date
Application number
FI811637A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI68697B (fi
FI811637L (fi
Inventor
Lars-Olof Andersson
Original Assignee
Straengbetong Ab
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 Straengbetong Ab filed Critical Straengbetong Ab
Publication of FI811637L publication Critical patent/FI811637L/fi
Publication of FI68697B publication Critical patent/FI68697B/fi
Application granted granted Critical
Publication of FI68697C publication Critical patent/FI68697C/fi

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
  • Duct Arrangements (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Pipe Accessories (AREA)
FI811637A 1979-10-05 1981-05-27 Anordning och foerfarande vid ljuddaempning av ventilationskanaler i bjaelklagselement FI68697C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE7908293 1979-10-05
SE7908293A SE422609B (sv) 1979-10-05 1979-10-05 Anordning och forfarande vid ljuddempning av ventilationskanaler i bjelklagselement
SE8000234 1980-10-01
PCT/SE1980/000234 WO1981001026A1 (fr) 1979-10-05 1980-10-01 Dispositif et procede d'amortissement sonore de conduits de ventilation dans des elements de structure

Publications (3)

Publication Number Publication Date
FI811637L FI811637L (fi) 1981-05-27
FI68697B FI68697B (fi) 1985-06-28
FI68697C true FI68697C (fi) 1985-10-10

Family

ID=20338990

Family Applications (1)

Application Number Title Priority Date Filing Date
FI811637A FI68697C (fi) 1979-10-05 1981-05-27 Anordning och foerfarande vid ljuddaempning av ventilationskanaler i bjaelklagselement

Country Status (8)

Country Link
EP (1) EP0044304B1 (fr)
BE (1) BE888283A (fr)
DE (1) DE3066852D1 (fr)
DK (1) DK235981A (fr)
FI (1) FI68697C (fr)
NO (1) NO152947C (fr)
SE (1) SE422609B (fr)
WO (1) WO1981001026A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239792A (en) * 1990-01-09 1993-08-31 Teletron Limited Eavesdropping-proof room and sound dampening devices therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US640176A (en) * 1899-02-23 1900-01-02 Heinrich Lehmann Process of producing hollow walls and roofs of cast mortar.
DE800331C (de) * 1949-03-26 1950-10-30 Buderus Eisenwerk Verfahren zur Verbesserung der waermedaemmenden Eigenschaft von Betonfertigbauteilen, wie Platten, Steinen u. dgl., mit durch-gehenden Hohlraeumen
FR1227466A (fr) * 1959-03-13 1960-08-22 éléments évidés en béton armé et leur procédé d'assemblage
SE349842B (fr) * 1970-12-21 1972-10-09 Straengbetong Ab

Also Published As

Publication number Publication date
EP0044304A1 (fr) 1982-01-27
DK235981A (da) 1981-05-29
EP0044304B1 (fr) 1984-03-07
NO152947B (no) 1985-09-09
NO152947C (no) 1985-12-18
DE3066852D1 (de) 1984-04-12
WO1981001026A1 (fr) 1981-04-16
FI68697B (fi) 1985-06-28
SE422609B (sv) 1982-03-15
NO811847L (no) 1981-06-01
FI811637L (fi) 1981-05-27
SE7908293L (sv) 1981-04-06
BE888283A (fr) 1981-07-31

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: AB STRAENGBETONG