Rotary driven pipe-bursting tool
US6896077B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2002 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Nov 4, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/1658
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus for bursting pipe is preferably adapted to receive rotational energy from the inner member of a dual-member drill string. In a preferred embodiment, an oscillating pipe-bursting member, driven by the interconnected inner members, cuts or bursts a subterranean pipe. In another preferred embodiment, a screw drive moves a pipe-bursting member between an expanded position and a retracted position. In another preferred embodiment, the pipe-bursting member is an arm moveable in response to operation of a screw drive. In yet another preferred embodiment, the pipe-bursting member is hydraulically actuated. This invention increases the efficiency of pipe-bursting operations by utilizing rotation energy generated by a horizontal directional boring system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.