Chemical barrier plug assembly and manufacturing and dislodgement methods for hydrostatic and pneumatic testing
US8061388B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | May 5, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/1011
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A barrier plug assembly for incorporation into a lower portion of a plumbing installation for supporting a column of test water during inspection of the installation includes a tubular plumbing segment for sealingly securing between and in fluid communication with opposing and spaced apart portions of a plumbing installation, the tubular plumbing segment being formed of plumbing segment material and having a plumbing segment interior and a substantially smooth and continuous plumbing segment interior surface; and a barrier plug having a plug upper surface and a plug lower surface, and having a plug circumferential surface adhering to the plumbing segment interior surface and extending diametrically across and sealing the plumbing segment interior until dislodged by a plug dislodgement triggering means; so that upon plug dislodgement the test water drains and the plumbing installation is operational.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.