CN2675983Y - 背压式柔性止逆阀 - Google Patents
背压式柔性止逆阀 Download PDFInfo
- Publication number
- CN2675983Y CN2675983Y CN 03259157 CN03259157U CN2675983Y CN 2675983 Y CN2675983 Y CN 2675983Y CN 03259157 CN03259157 CN 03259157 CN 03259157 U CN03259157 U CN 03259157U CN 2675983 Y CN2675983 Y CN 2675983Y
- Authority
- CN
- China
- Prior art keywords
- conical surface
- back pressure
- pressure type
- sealing
- type flexible
- 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 - Lifetime
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Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03259157 CN2675983Y (zh) | 2003-06-23 | 2003-06-23 | 背压式柔性止逆阀 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03259157 CN2675983Y (zh) | 2003-06-23 | 2003-06-23 | 背压式柔性止逆阀 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2675983Y true CN2675983Y (zh) | 2005-02-02 |
Family
ID=34473428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 03259157 Expired - Lifetime CN2675983Y (zh) | 2003-06-23 | 2003-06-23 | 背压式柔性止逆阀 |
Country Status (1)
Country | Link |
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CN (1) | CN2675983Y (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101675281B (zh) * | 2007-05-07 | 2011-11-16 | 艾安·德拉库普·多伊格 | 带有弯曲和弹性偏压闭合密封的鸭嘴型单向阀 |
CN104727899A (zh) * | 2014-07-25 | 2015-06-24 | 马勒技术投资(中国)有限公司 | 一种新型单向阀 |
CN107386904A (zh) * | 2016-05-17 | 2017-11-24 | 周承岗 | 一种水下舱门 |
CN111433497A (zh) * | 2017-12-11 | 2020-07-17 | 精工爱普生株式会社 | 鸭嘴阀、隔膜泵以及印刷装置 |
-
2003
- 2003-06-23 CN CN 03259157 patent/CN2675983Y/zh not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101675281B (zh) * | 2007-05-07 | 2011-11-16 | 艾安·德拉库普·多伊格 | 带有弯曲和弹性偏压闭合密封的鸭嘴型单向阀 |
CN104727899A (zh) * | 2014-07-25 | 2015-06-24 | 马勒技术投资(中国)有限公司 | 一种新型单向阀 |
CN107386904A (zh) * | 2016-05-17 | 2017-11-24 | 周承岗 | 一种水下舱门 |
CN111433497A (zh) * | 2017-12-11 | 2020-07-17 | 精工爱普生株式会社 | 鸭嘴阀、隔膜泵以及印刷装置 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NANJING SHUIMEI ENVIRONMENT PROTECTION MACHINE CO Free format text: FORMER OWNER: JIANGSU YATAI HYDRAULIC MACHINERY CO., LTD. Effective date: 20050520 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20050520 Address after: 210000 36-E, B, new world center, 88, Nanjing, Jiangsu, Zhujianglu Road Patentee after: Nanjing water environmental protection machinery Co., Ltd. Address before: 225400 No. 64 East Daqing Road, Jiangsu, Taixing Patentee before: Jiangsu Yatai Hydraulic Machinery Co., Ltd. |
|
C32 | Full or partial invalidation of patent right | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20130623 Granted publication date: 20050202 |
|
C35 | Partial or whole invalidation of patent or utility model | ||
IP01 | Partial invalidation of patent right |
Commission number: 5W11978 Conclusion of examination: Claim No. 3259157.8 of the patent for utility model 2 is invalid, and the patent shall remain valid on the basis of claim 1. Decision date of declaring invalidation: 20100613 Decision number of declaring invalidation: 14960 Denomination of utility model: Back pressure type flexible retaining valve Granted publication date: 20050202 Patentee: Nanjing water environmental protection machinery Co., Ltd. |