CN2687440Y - 一种双封楔式闸板阀 - Google Patents
一种双封楔式闸板阀 Download PDFInfo
- Publication number
- CN2687440Y CN2687440Y CN 200420030565 CN200420030565U CN2687440Y CN 2687440 Y CN2687440 Y CN 2687440Y CN 200420030565 CN200420030565 CN 200420030565 CN 200420030565 U CN200420030565 U CN 200420030565U CN 2687440 Y CN2687440 Y CN 2687440Y
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- Prior art keywords
- flashboard
- valve rod
- oil
- main body
- valve
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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.)
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Abstract
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Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200420030565 CN2687440Y (zh) | 2004-02-26 | 2004-02-26 | 一种双封楔式闸板阀 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200420030565 CN2687440Y (zh) | 2004-02-26 | 2004-02-26 | 一种双封楔式闸板阀 |
Publications (1)
Publication Number | Publication Date |
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CN2687440Y true CN2687440Y (zh) | 2005-03-23 |
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Family Applications (1)
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CN 200420030565 Expired - Fee Related CN2687440Y (zh) | 2004-02-26 | 2004-02-26 | 一种双封楔式闸板阀 |
Country Status (1)
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CN (1) | CN2687440Y (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100999987B (zh) * | 2007-01-10 | 2010-08-18 | 辽河石油勘探局 | 油水井带压作业用电液复合开关控制阀 |
-
2004
- 2004-02-26 CN CN 200420030565 patent/CN2687440Y/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100999987B (zh) * | 2007-01-10 | 2010-08-18 | 辽河石油勘探局 | 油水井带压作业用电液复合开关控制阀 |
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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: BAO NANXI Free format text: FORMER OWNER: LIU YAFENG Effective date: 20060714 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20060714 Address after: 124010 3-13-1-302, ecological garden area, Xinglongtai District, Liaoning, Panjin Patentee after: Bao Nanxi Address before: 124010 Liaoning Panjin Liaohe Oilfield revitalization company property four companies Patentee before: Liu Yafeng |
|
C32 | Full or partial invalidation of patent right | ||
IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20070820 Decision number of declaring invalidation: 10369 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050323 |