CN201083263Y - 钻孔的密封结构 - Google Patents
钻孔的密封结构 Download PDFInfo
- Publication number
- CN201083263Y CN201083263Y CNU200720047052XU CN200720047052U CN201083263Y CN 201083263 Y CN201083263 Y CN 201083263Y CN U200720047052X U CNU200720047052X U CN U200720047052XU CN 200720047052 U CN200720047052 U CN 200720047052U CN 201083263 Y CN201083263 Y CN 201083263Y
- Authority
- CN
- China
- Prior art keywords
- expansion cover
- ball
- expansion
- utility
- model
- 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 - Lifetime
Links
Images
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU200720047052XU CN201083263Y (zh) | 2007-09-07 | 2007-09-07 | 钻孔的密封结构 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU200720047052XU CN201083263Y (zh) | 2007-09-07 | 2007-09-07 | 钻孔的密封结构 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201083263Y true CN201083263Y (zh) | 2008-07-09 |
Family
ID=39625730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU200720047052XU Expired - Lifetime CN201083263Y (zh) | 2007-09-07 | 2007-09-07 | 钻孔的密封结构 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201083263Y (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102937184A (zh) * | 2012-11-27 | 2013-02-20 | 康力电梯股份有限公司 | 一种油路高压堵头 |
CN103867718A (zh) * | 2012-12-07 | 2014-06-18 | 宁波市鄞州通用电器二厂 | 一种球涨式高压堵头 |
-
2007
- 2007-09-07 CN CNU200720047052XU patent/CN201083263Y/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102937184A (zh) * | 2012-11-27 | 2013-02-20 | 康力电梯股份有限公司 | 一种油路高压堵头 |
CN103867718A (zh) * | 2012-12-07 | 2014-06-18 | 宁波市鄞州通用电器二厂 | 一种球涨式高压堵头 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107143298A (zh) | 石油井口环空密封装置 | |
CA2577542A1 (en) | A drill-string connector | |
CN102777642B (zh) | 用于水击泄压阀的阀口密封件 | |
EP4219891A3 (en) | Fluid injection device | |
CN105408562B (zh) | 用于封闭墙及类似物中的孔的密封塞 | |
BR102015029620A2 (pt) | válvula para controlar um fluxo de fluido, conjunto de barreira e método para a operação de uma válvula de elevação de gás | |
CN201083263Y (zh) | 钻孔的密封结构 | |
CN109555492A (zh) | 基于钻柱振动的井底环空钻井液降压装置及方法 | |
CN106969002A (zh) | 两级双作用液压油缸 | |
EP3156702A1 (en) | Valve seat ring and multi-way valve having valve seat ring | |
CN104179733B (zh) | 单作用增压器 | |
CN206972186U (zh) | 一种具有注脂功能的井口顶丝 | |
CN104047918A (zh) | 双联单向阀 | |
CN201546655U (zh) | 双级密封器 | |
CN204300013U (zh) | 一种液压油缸 | |
KR101985735B1 (ko) | 유압 축압기 | |
CN201836429U (zh) | 套筒式调节阀 | |
CN201220662Y (zh) | 球阀式加力器 | |
CN105864435B (zh) | 流体用液控超高压双向截止阀及流体截止或连通的方法 | |
CN103573748A (zh) | 一种双作用大吨位机械锁液压缸 | |
CN219345116U (zh) | 一种无泄漏插装式液控单向阀 | |
CN110454455B (zh) | 一种液压油路的开关装置 | |
CN106594280A (zh) | 一种液压动密封组合式高压密封结构及其制造方法 | |
CN217519207U (zh) | 一种应用于rd型井下工具的增强密封结构 | |
CN110295960B (zh) | 液压控制单元、气门桥及发动机 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Yingbei Precision Bearing Co., Ltd. Assignor: Wuxi Yingbei Machinery Co., Ltd. Contract fulfillment period: 2009.2.10 to 2014.2.10 Contract record no.: 2009320000205 Denomination of utility model: Seal structure for drilling hole Granted publication date: 20080709 License type: Exclusive license Record date: 20090303 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.10 TO 2014.2.10; CHANGE OF CONTRACT Name of requester: WUXI IMPRO-BEES PRECISION BEARING CO., LTD. Effective date: 20090303 |
|
ASS | Succession or assignment of patent right |
Owner name: WUXI YINGBEI PRECISION BEARING CO., LTD. Free format text: FORMER OWNER: YINGBEI MACHINERY CO., LTD., WUXI CITY Effective date: 20121121 |
|
C41 | Transfer of patent application or patent right or utility model | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Wuxi Yingbei Precision Bearing Co., Ltd. Assignor: Wuxi Yingbei Machinery Co., Ltd. Contract record no.: 2009320000205 Date of cancellation: 20121023 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20121121 Address after: 214416 Jiangsu city of Jiangyin province Wenlin Zhutang Town Ring Road No. 11 Patentee after: Wuxi Yingbei Precision Bearing Co., Ltd. Address before: 214416 Jiangsu city of Jiangyin province Wenlin Zhutang Town Ring Road No. 11 Patentee before: Wuxi Yingbei Machinery Co., Ltd. |
|
CX01 | Expiry of patent term |
Granted publication date: 20080709 |
|
CX01 | Expiry of patent term |