Detachable system to shut off pressure flow in pipes
US10801657B2 · kind B2 · utility
0Cited by
13References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jun 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/185
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Systems and methods for shutting off or stopping fluid flow through a pipe are provided. An inflatable bag stopper assembly is inserted through an opening into the pipe. The assembly includes one or more inflatable bags with each inflatable bag having a check valve positioned at an inlet. In inflatable bag stopper assemblies of two or more inflatable bags, the inflatable bags are connected in series. The inflatable bag stopper assembly is inflated such that the inflatable bag or bags act or serve to obstruct, block, close, or otherwise effectively foreclose passage of the fluid through the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.