CN202358117U - 用于高速列车行李架的微穿孔板腔体共振吸声装置 - Google Patents
用于高速列车行李架的微穿孔板腔体共振吸声装置 Download PDFInfo
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- CN202358117U CN202358117U CN2011205204134U CN201120520413U CN202358117U CN 202358117 U CN202358117 U CN 202358117U CN 2011205204134 U CN2011205204134 U CN 2011205204134U CN 201120520413 U CN201120520413 U CN 201120520413U CN 202358117 U CN202358117 U CN 202358117U
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- structural slab
- baggage rack
- shape structural
- plate
- micropunch
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
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CN2011205204134U CN202358117U (zh) | 2011-12-13 | 2011-12-13 | 用于高速列车行李架的微穿孔板腔体共振吸声装置 |
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CN2011205204134U CN202358117U (zh) | 2011-12-13 | 2011-12-13 | 用于高速列车行李架的微穿孔板腔体共振吸声装置 |
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CN202358117U true CN202358117U (zh) | 2012-08-01 |
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CN2011205204134U Expired - Fee Related CN202358117U (zh) | 2011-12-13 | 2011-12-13 | 用于高速列车行李架的微穿孔板腔体共振吸声装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103072589A (zh) * | 2011-12-13 | 2013-05-01 | 白国锋 | 用于高速列车行李架的微穿孔板腔体共振吸声装置 |
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2011
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103072589A (zh) * | 2011-12-13 | 2013-05-01 | 白国锋 | 用于高速列车行李架的微穿孔板腔体共振吸声装置 |
CN103072589B (zh) * | 2011-12-13 | 2016-03-30 | 白国锋 | 用于高速列车行李架的微穿孔板腔体共振吸声装置 |
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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: Eco-Tec Asia (Beijing) Co., Ltd. Assignor: Sui Fusheng|Bai Guofeng|Cheng Jiumei Contract record no.: 2012110000159 Denomination of utility model: Micro-perforated plate cavity resonance sound absorption device for high-speed train baggage rack Granted publication date: 20120801 License type: Exclusive License Record date: 20121019 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20161213 |