Internal pipe lining system having self-propelled, self-powered propulsion devices
US11181222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Mar 25, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2101/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Self-propelled, self-powered, propulsion devices as part of pipe lining system adapted to create an internal liner member on a pipe or other tubular structure, the system being the combination of a sprayer apparatus, an umbilical member connected to the sprayer apparatus, wherein the umbilical member supplies no power or communications to the propulsion devices, and a plurality of propulsion devices mounted externally onto the umbilical member in a removable manner. The spraying apparatus and propulsion devices are independently powered and controlled such that each may be accelerated or decelerated as required to maintain the sprayer apparatus at a constant speed during the application process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.