FR2254758A1 - Noiseless domestic ventilation unit - has absorbent material on inner walls and baffles forming convoluted air path - Google Patents
Noiseless domestic ventilation unit - has absorbent material on inner walls and baffles forming convoluted air pathInfo
- Publication number
- FR2254758A1 FR2254758A1 FR7430453A FR7430453A FR2254758A1 FR 2254758 A1 FR2254758 A1 FR 2254758A1 FR 7430453 A FR7430453 A FR 7430453A FR 7430453 A FR7430453 A FR 7430453A FR 2254758 A1 FR2254758 A1 FR 2254758A1
- Authority
- FR
- France
- Prior art keywords
- absorbent material
- noiseless
- inner walls
- air path
- ventilation unit
- 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.)
- Granted
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
- F24F7/00—Ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F2007/0025—Ventilation using vent ports in a wall
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Duct Arrangements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732361994 DE2361994B2 (de) | 1973-12-13 | 1973-12-13 | Schalldaemmendes lueftungselement |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2254758A1 true FR2254758A1 (en) | 1975-07-11 |
FR2254758B1 FR2254758B1 (de) | 1978-07-13 |
Family
ID=5900639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7430453A Granted FR2254758A1 (en) | 1973-12-13 | 1974-09-09 | Noiseless domestic ventilation unit - has absorbent material on inner walls and baffles forming convoluted air path |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT335124B (de) |
BE (1) | BE818783A (de) |
CH (1) | CH581297A5 (de) |
DE (1) | DE2361994B2 (de) |
FR (1) | FR2254758A1 (de) |
NL (1) | NL7412395A (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2387424A1 (fr) * | 1977-04-16 | 1978-11-10 | Siegenia Frank Kg | Piece moulee a base d'un materiau antiphonique, en particulier en mousse |
US5239792A (en) * | 1990-01-09 | 1993-08-31 | Teletron Limited | Eavesdropping-proof room and sound dampening devices therefor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555930C3 (de) * | 1975-12-12 | 1985-05-15 | Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen | Schalldämmende Lüftungsvorrichtung |
EP0081526B1 (de) * | 1981-06-17 | 1984-11-14 | Contacting-Gesellschaft Für Wirtschaftskontakte Gesellschaft M.B.H. | Raumabschlüsse und rahmenprofil für solche |
DE3425766A1 (de) * | 1984-07-12 | 1986-01-23 | Odesskoe proizvodstvennoe ob"edinenie cholodil'nogo mašinostroenija, Odessa | Anlage zur reinigung von luft und zur zufuehrung der gereinigten luft in einen raum |
DE102008047272A1 (de) * | 2008-09-16 | 2010-03-25 | Ltg Aktiengesellschaft | Als Schallreduktionsbauteil ausgebildetes Luftleitungselement sowie Luftleitung mit einem Luftleitungselement |
-
1973
- 1973-12-13 DE DE19732361994 patent/DE2361994B2/de not_active Withdrawn
-
1974
- 1974-08-13 BE BE147550A patent/BE818783A/xx unknown
- 1974-08-16 CH CH1120174A patent/CH581297A5/xx not_active IP Right Cessation
- 1974-09-03 AT AT712174A patent/AT335124B/de not_active IP Right Cessation
- 1974-09-09 FR FR7430453A patent/FR2254758A1/fr active Granted
- 1974-09-19 NL NL7412395A patent/NL7412395A/xx not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2387424A1 (fr) * | 1977-04-16 | 1978-11-10 | Siegenia Frank Kg | Piece moulee a base d'un materiau antiphonique, en particulier en mousse |
US5239792A (en) * | 1990-01-09 | 1993-08-31 | Teletron Limited | Eavesdropping-proof room and sound dampening devices therefor |
Also Published As
Publication number | Publication date |
---|---|
NL7412395A (nl) | 1975-06-17 |
BE818783A (fr) | 1974-12-02 |
AT335124B (de) | 1977-02-25 |
DE2361994A1 (de) | 1975-06-26 |
ATA712174A (de) | 1976-06-15 |
DE2361994B2 (de) | 1977-09-08 |
FR2254758B1 (de) | 1978-07-13 |
CH581297A5 (de) | 1976-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |