JPS5645036B2 - - Google Patents
Info
- Publication number
- JPS5645036B2 JPS5645036B2 JP15002975A JP15002975A JPS5645036B2 JP S5645036 B2 JPS5645036 B2 JP S5645036B2 JP 15002975 A JP15002975 A JP 15002975A JP 15002975 A JP15002975 A JP 15002975A JP S5645036 B2 JPS5645036 B2 JP S5645036B2
- Authority
- JP
- Japan
- 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
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
- F24F13/02—Ducting arrangements
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
-
- 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
- F24F2013/242—Sound-absorbing material
-
- 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
- F24F2013/245—Means for preventing or suppressing noise using resonance
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Insulation (AREA)
- Ventilation (AREA)
- Pipe Accessories (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50150029A JPS5273541A (en) | 1975-12-15 | 1975-12-15 | Method of manufacturing noiseemuffled ventilation duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50150029A JPS5273541A (en) | 1975-12-15 | 1975-12-15 | Method of manufacturing noiseemuffled ventilation duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5273541A JPS5273541A (en) | 1977-06-20 |
| JPS5645036B2 true JPS5645036B2 (enExample) | 1981-10-23 |
Family
ID=15487931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50150029A Granted JPS5273541A (en) | 1975-12-15 | 1975-12-15 | Method of manufacturing noiseemuffled ventilation duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5273541A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5767192U (enExample) * | 1980-10-11 | 1982-04-22 |
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1975
- 1975-12-15 JP JP50150029A patent/JPS5273541A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5273541A (en) | 1977-06-20 |