Pipe scarifying method and apparatus
US10758952B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Aug 23, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2038 |
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.