Plug with resettable closure member
US11391118B2 · kind B2 · utility
1Cited by
15References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2020 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Nov 19, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plug with a resettable closure member comprising a body defining a flow bore, a closure member movable between a position closing the flow bore and a position wherein the flow bore is open, the closure member responsive to a selected hydrodynamic force to move to the position closing the flow bore and responsive to an attractive magnetic force to move to the position wherein the flow bore is open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.