CN209179992U - 弹性柱塞密封抽油泵 - Google Patents
弹性柱塞密封抽油泵 Download PDFInfo
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- CN209179992U CN209179992U CN201821991888.XU CN201821991888U CN209179992U CN 209179992 U CN209179992 U CN 209179992U CN 201821991888 U CN201821991888 U CN 201821991888U CN 209179992 U CN209179992 U CN 209179992U
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- Prior art keywords
- wall
- central tube
- resilient plunger
- fixed
- oil
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Abstract
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Application Number | Priority Date | Filing Date | Title |
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CN201821991888.XU CN209179992U (zh) | 2018-11-30 | 2018-11-30 | 弹性柱塞密封抽油泵 |
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CN201821991888.XU CN209179992U (zh) | 2018-11-30 | 2018-11-30 | 弹性柱塞密封抽油泵 |
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CN209179992U true CN209179992U (zh) | 2019-07-30 |
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CN201821991888.XU Active CN209179992U (zh) | 2018-11-30 | 2018-11-30 | 弹性柱塞密封抽油泵 |
Country Status (1)
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CN (1) | CN209179992U (zh) |
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2018
- 2018-11-30 CN CN201821991888.XU patent/CN209179992U/zh active Active
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force 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: Elastic plunger seal oil well pump Effective date of registration: 20220125 Granted publication date: 20190730 Pledgee: Shandong Yingxin Financing Guarantee Co.,Ltd. Pledgor: SHANDONG WEIMA PUMPS MANUFACTURING Co.,Ltd. Registration number: Y2022370000015 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230220 Granted publication date: 20190730 Pledgee: Shandong Yingxin Financing Guarantee Co.,Ltd. Pledgor: SHANDONG WEIMA PUMPS MANUFACTURING Co.,Ltd. Registration number: Y2022370000015 |