CN2711428Y - 宽频带消声器 - Google Patents
宽频带消声器 Download PDFInfo
- Publication number
- CN2711428Y CN2711428Y CN 200420026348 CN200420026348U CN2711428Y CN 2711428 Y CN2711428 Y CN 2711428Y CN 200420026348 CN200420026348 CN 200420026348 CN 200420026348 U CN200420026348 U CN 200420026348U CN 2711428 Y CN2711428 Y CN 2711428Y
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- Prior art keywords
- noise
- perforated plate
- frequency
- broad band
- utility
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- 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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- Duct Arrangements (AREA)
- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420026348 CN2711428Y (zh) | 2004-04-16 | 2004-04-16 | 宽频带消声器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420026348 CN2711428Y (zh) | 2004-04-16 | 2004-04-16 | 宽频带消声器 |
Publications (1)
Publication Number | Publication Date |
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CN2711428Y true CN2711428Y (zh) | 2005-07-20 |
Family
ID=36192531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200420026348 Expired - Fee Related CN2711428Y (zh) | 2004-04-16 | 2004-04-16 | 宽频带消声器 |
Country Status (1)
Country | Link |
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CN (1) | CN2711428Y (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103216469A (zh) * | 2013-04-15 | 2013-07-24 | 西安交通大学 | 一种离心风机声子晶体结构中低频整流降噪装置 |
CN110106999A (zh) * | 2019-03-29 | 2019-08-09 | 深圳中天精装股份有限公司 | 一种装配式建筑吸音木隔墙及其设计方法 |
CN113496692A (zh) * | 2020-03-18 | 2021-10-12 | 香港大学 | 用于吸声体的调频面板及包括其的吸声体和消声器 |
-
2004
- 2004-04-16 CN CN 200420026348 patent/CN2711428Y/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103216469A (zh) * | 2013-04-15 | 2013-07-24 | 西安交通大学 | 一种离心风机声子晶体结构中低频整流降噪装置 |
CN110106999A (zh) * | 2019-03-29 | 2019-08-09 | 深圳中天精装股份有限公司 | 一种装配式建筑吸音木隔墙及其设计方法 |
CN113496692A (zh) * | 2020-03-18 | 2021-10-12 | 香港大学 | 用于吸声体的调频面板及包括其的吸声体和消声器 |
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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: Zhang Rongchu Contract fulfillment period: 2008.1.1 to 2013.12.31 Contract record no.: 2008320000532 Denomination of utility model: Water pipe flow stabilizing broadband muffler Granted publication date: 20050720 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: 20050720 Termination date: 20100416 |
|
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Changrong Environmental & Acousitc Engineering Co., Ltd. Assignor: Zhang Rongchu Contract record no.: 2008320000532 Date of cancellation: 20140707 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |