Pipe scarifying method and apparatus
US10981202B2 · kind B2 · utility
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1References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 31, 2020 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Aug 31, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2101/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for hydrodemolishing the inside surfaces of an inclined pipe, particularly suited to contiguous pipe sections with access ports between the sections. The fluid supply hose is fed to the hydrodemolition rig inside the pipe from the same side as the winch that controls the movement of the rig. The rig is moved upstream in a scarifying pass, then downstream in a cleaning pass for each section and re-staged at each access port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.