CN202731838U - 压杆失稳触发型井口安全阀 - Google Patents
压杆失稳触发型井口安全阀 Download PDFInfo
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- CN202731838U CN202731838U CN201220274960.3U CN201220274960U CN202731838U CN 202731838 U CN202731838 U CN 202731838U CN 201220274960 U CN201220274960 U CN 201220274960U CN 202731838 U CN202731838 U CN 202731838U
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- valve
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- elongate rod
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Application Number | Priority Date | Filing Date | Title |
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CN201220274960.3U CN202731838U (zh) | 2012-06-08 | 2012-06-08 | 压杆失稳触发型井口安全阀 |
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CN201220274960.3U CN202731838U (zh) | 2012-06-08 | 2012-06-08 | 压杆失稳触发型井口安全阀 |
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CN202731838U true CN202731838U (zh) | 2013-02-13 |
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CN201220274960.3U Expired - Lifetime CN202731838U (zh) | 2012-06-08 | 2012-06-08 | 压杆失稳触发型井口安全阀 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470215A (zh) * | 2012-06-08 | 2013-12-25 | 刘海亮 | 压杆失稳触发型井口安全阀 |
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- 2012-06-08 CN CN201220274960.3U patent/CN202731838U/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103470215A (zh) * | 2012-06-08 | 2013-12-25 | 刘海亮 | 压杆失稳触发型井口安全阀 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: WANG LEI WANG FUKAI Effective date: 20140917 Owner name: JIANGSU RUILANGBO MACHINERY EQUIPMENT CO., LTD. Free format text: FORMER OWNER: LIU HAILIANG Effective date: 20140917 |
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C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100076 DAXING, BEIJING TO: 211316 NANJING, JIANGSU PROVINCE |
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TR01 | Transfer of patent right |
Effective date of registration: 20140917 Address after: 211316, No. 12 Tan Avenue, Gaochun Economic Development Zone, Nanjing, Jiangsu Patentee after: JIANGSU RELIABLE MACHINERY EQUIPMENT Co.,Ltd. Address before: 100076 Beijing city Daxing District Jiugong Town Hall Road No. 15 No. 23 building 3 unit 1101 Patentee before: Liu Hailiang Patentee before: Wang Lei Patentee before: Wang Fukai |
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DD01 | Delivery of document by public notice |
Addressee: Liu Hailiang Document name: Notification of Passing Examination on Formalities |
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CX01 | Expiry of patent term |
Granted publication date: 20130213 |
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CX01 | Expiry of patent term | ||
DD01 | Delivery of document by public notice |
Addressee: Jiangsu Ruilangbo Machinery Equipment Co.,Ltd. patent The person in charge Document name: Notice of Patent Expiration and Termination |
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DD01 | Delivery of document by public notice |