CN2694424Y - Sound screen - Google Patents
Sound screen Download PDFInfo
- Publication number
- CN2694424Y CN2694424Y CN 200420026343 CN200420026343U CN2694424Y CN 2694424 Y CN2694424 Y CN 2694424Y CN 200420026343 CN200420026343 CN 200420026343 CN 200420026343 U CN200420026343 U CN 200420026343U CN 2694424 Y CN2694424 Y CN 2694424Y
- Authority
- CN
- China
- Prior art keywords
- sound
- angle
- sheet material
- screen body
- sound absorbing
- 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 - Fee Related
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Abstract
Description
Sequence number | Manufacturer | The name of product oise insulation factor | The third-octave center is Hz frequently | ||||||||||||||
100 | 125 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 | 500 | 2000 | 2500 | |||
1 | BJ Municipal Engin Machinery Works | GYB type sound barrier | 17.2 | 19.5 | 20.2 | 20.2 | 21.4 | 24.8 | 26.8 | 29.1 | 30.6 | 34.3 | 36.3 | 38.3 | 39.5 | 41 | 41.8 |
2 | Shanghai Shenhua Acoustics Equipment Co., Ltd. | SHP-W type micropore absorbent lined barrier | 14 | 16 | 12 | 14 | 14 | 17 | 20 | 22 | 23 | 27 | 30 | 30 | 34 | 34 | 34 |
3 | Nanjing ChangRong noise control Environment Protection Engineering Co., Ltd | CR-SB-I type sound barrier | 21.4 | 22.3 | 21.4 | 26.2 | 29.8 | 31.6 | 30.5 | 34.1 | 39 | 35.7 | 42.8 | 40.8 | 42.5 | 42 | 42.7 |
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420026343 CN2694424Y (en) | 2004-04-16 | 2004-04-16 | Sound screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420026343 CN2694424Y (en) | 2004-04-16 | 2004-04-16 | Sound screen |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2694424Y true CN2694424Y (en) | 2005-04-20 |
Family
ID=34771208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200420026343 Expired - Fee Related CN2694424Y (en) | 2004-04-16 | 2004-04-16 | Sound screen |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2694424Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100565669C (en) * | 2007-08-08 | 2009-12-02 | 张荣初 | Transparent space absorber and preparation method thereof |
-
2004
- 2004-04-16 CN CN 200420026343 patent/CN2694424Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100565669C (en) * | 2007-08-08 | 2009-12-02 | 张荣初 | Transparent space absorber and preparation method thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changrong Environmental & Acousitc Engineering Co., Ltd. Assignor: Chen Yueping Contract fulfillment period: 2008.1.1 to 2013.12.31 Contract record no.: 2008320000531 Denomination of utility model: Combined total image sound screen Granted publication date: 20050420 License type: Exclusive license Record date: 20081006 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.1.1 TO 2013.12.31; CHANGE OF CONTRACT Name of requester: NANJING CHANGRONG NOISE CONTROL ENVIRONMENT PROTEC Effective date: 20081006 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050420 |