Plug release system
US11142992B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/165
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plug release system includes a tubular member having an outer surface and an inner surface defining a flow bore having a central longitudinal axis. A sleeve is positioned in the flow bore. The sleeve includes a first end having a radially outwardly extending annular lip, and a second end. A release mechanism is rotatably mounted in the tubular member radially offset from the central longitudinal axis. The release mechanism includes a sleeve support surface that selectively engages the radially extending annular lip. The release mechanism is rotatable between a first position wherein the sleeve maintains a plug in a retained configuration and a second position, wherein the sleeve releases the plug into the tubular member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.