Linestops, nozzles and completion plugs for installation in pressurized pipes
US9829141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Dec 10, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/613
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This patent document discloses an improved series of nozzles and completion plugs for use in installing linestops in pressurized pipes. The improved nozzles are capable of accommodating two different types of completion plugs, including a threaded completion plug and a push-in type completion plug that is held in place within the nozzle by pins that extend through a flange of the nozzle. Lower edges of the nozzles are designed to facilitate the welding of the nozzle to an upper clamp or upper saddle member. Specifically, the lower or proximal beveled edge includes an inner lip that acts as a dam to prevent seepage of welding material between the proximal edge of the nozzle and the upper saddle member during the welding of the former to the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.