CN206786075U - 一种对夹式真空泵止回阀与真空系统防倒灌装置 - Google Patents
一种对夹式真空泵止回阀与真空系统防倒灌装置 Download PDFInfo
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CN201621220719.7U CN206786075U (zh) | 2016-11-14 | 2016-11-14 | 一种对夹式真空泵止回阀与真空系统防倒灌装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111828367A (zh) * | 2020-07-22 | 2020-10-27 | 中国空气动力研究与发展中心超高速空气动力研究所 | 一种用于高速离心真空泵的防喘保护装置和保护方法 |
CN114435964A (zh) * | 2022-03-08 | 2022-05-06 | 广东长信精密设备有限公司 | 颗粒物真空上料装置 |
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2016
- 2016-11-14 CN CN201621220719.7U patent/CN206786075U/zh active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111828367A (zh) * | 2020-07-22 | 2020-10-27 | 中国空气动力研究与发展中心超高速空气动力研究所 | 一种用于高速离心真空泵的防喘保护装置和保护方法 |
CN114435964A (zh) * | 2022-03-08 | 2022-05-06 | 广东长信精密设备有限公司 | 颗粒物真空上料装置 |
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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 |
Denomination of utility model: Butt clamp formula vacuum pump check valve and vacuum system anti -backflow device Effective date of registration: 20200515 Granted publication date: 20171222 Pledgee: Ezhou SME Financing Guarantee Co.,Ltd. Pledgor: HUBEI SHENLONG PUMP Co.,Ltd. Registration number: Y2020420000019 |
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PE01 | Entry into force 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: 20210514 Granted publication date: 20171222 Pledgee: Ezhou SME Financing Guarantee Co.,Ltd. Pledgor: HUBEI SHENLONG PUMP Co.,Ltd. Registration number: Y2020420000019 |
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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: A check valve of wafer vacuum pump and anti backflow device of vacuum system Effective date of registration: 20210521 Granted publication date: 20171222 Pledgee: Ezhou SME Financing Guarantee Co.,Ltd. Pledgor: HUBEI SHENLONG PUMP Co.,Ltd. Registration number: Y2021420000025 |
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PE01 | Entry into force 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: 20220705 Granted publication date: 20171222 Pledgee: Ezhou SME Financing Guarantee Co.,Ltd. Pledgor: HUBEI SHENLONG PUMP Co.,Ltd. Registration number: Y2021420000025 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |