Sealing plug assemblies, sealing elements, and bleed lances for line stopping a pipe and systems and methods thereof
US12259079B2 · kind B2 · utility
0Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2024 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Jul 16, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/124
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides a sealing plug assembly for stopping flow of a product in a pipe, the assembly having two sealing elements and having an isolation zone in the assembly which can be drained by a bleed lance to maintain pressure in the isolation zone within a safe limit. The present disclosure further provides sealing elements, bleed lances, systems, and methods of using the same. A benefit of the sealing plug assembly, and methods of using the same, can include forming safer seals during line stopping and the efficiency of recovering product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.