Pipeline pig with retractable scraper
US12194514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2022 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Jul 26, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2101/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Systems and methods for cleaning an internal bore of a tubular member with a pipeline pig include a pipeline pig having a pig body with a fore end and an aft end opposite the fore end. A cup circumscribes the pig body, where an outer diameter lip of the cup engages a surface of the internal bore of the tubular member. A scraper assembly includes a scraper arm extending radially outward from the pig body and a spring biasing the scraper arm in a radially outward direction. A load cell is positioned to measure a movement of the scraper arm in a radially inward direction. A treatment trigger is actuated by a treatment signal from the load cell to deliver a treatment system to the internal bore of the tubular member, where the treatment signal is generated by the movement of the scraper arm in the radially inward direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.