Completion machine
US4880028A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1989 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Feb 3, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/5587
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
For use in a hot tapping system having a plug receiving flange providing communication into the interior of a pipeline, a completion machine for attachment to the flange providing means to install or retrieve a plug from within the flange, the machine being formed of an elongated cylindrical housing having a flange portion to removably sealably engage the plug receiving flange and the housing forming a hydraulic cylinder, an elongated tubular control bar reciprocally and non-rotatably received within the housing, a piston within the cylinder secured to the control bar by which the control bar is hydraulically displaced, and a rotatable retention rod telescopically received within the control bar and having a threaded end to attach to a plug, the retention rod being secured to a plug for placement of the plug into a flange or the removal therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.