CN204677424U - 抽油泵抗压下阀罩 - Google Patents
抽油泵抗压下阀罩 Download PDFInfo
- Publication number
- CN204677424U CN204677424U CN201520396031.3U CN201520396031U CN204677424U CN 204677424 U CN204677424 U CN 204677424U CN 201520396031 U CN201520396031 U CN 201520396031U CN 204677424 U CN204677424 U CN 204677424U
- Authority
- CN
- China
- Prior art keywords
- cover body
- described cover
- inclined hole
- valve bonnet
- oil well
- 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
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Check Valves (AREA)
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520396031.3U CN204677424U (zh) | 2015-06-10 | 2015-06-10 | 抽油泵抗压下阀罩 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520396031.3U CN204677424U (zh) | 2015-06-10 | 2015-06-10 | 抽油泵抗压下阀罩 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN204677424U true CN204677424U (zh) | 2015-09-30 |
Family
ID=54177120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201520396031.3U Expired - Fee Related CN204677424U (zh) | 2015-06-10 | 2015-06-10 | 抽油泵抗压下阀罩 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN204677424U (zh) |
-
2015
- 2015-06-10 CN CN201520396031.3U patent/CN204677424U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Valve bonnet under oil -well pump resistance to compression Effective date of registration: 20161011 Granted publication date: 20150930 Pledgee: Puyang City Rural Credit Cooperatives Pledgor: HENAN SHUANGFA PETROLEUM EQUIPMENT MANUFACTURING CORP. Registration number: 2016410000014 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170720 Granted publication date: 20150930 Pledgee: Puyang City Rural Credit Cooperatives Pledgor: HENAN SHUANGFA PETROLEUM EQUIPMENT MANUFACTURING CORP. Registration number: 2016410000014 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Valve bonnet under oil -well pump resistance to compression Effective date of registration: 20170724 Granted publication date: 20150930 Pledgee: Puyang City Rural Credit Cooperatives Pledgor: HENAN SHUANGFA PETROLEUM EQUIPMENT MANUFACTURING CORP. Registration number: 2017990000671 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 |
|
CF01 | Termination of patent right due to non-payment of annual fee |