Permanently-installed test fitting
US4706482A · kind A · utility
41Cited by
15References
18Claims
0Family size
Inventor
Key dates
| Filing date | Jul 28, 1986 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Jul 28, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/917
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus is provided for pressure testing pipe and fittings systems. A seal has a disk portion and a flange portion. The seal is permanently attached to the inside of a fitting on the distal end of the pipe section to be tested, thereby blocking fluid flow. The section is installed and tested by conventional means. After testing, a pull-tab formed in the seal is removed to permit fluid flow through the seal. Subsequent sections can then be installed and tested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.