Tubular obturator for use with a hollow body
US4316487A · kind A · utility
1Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1980 |
| Grant date | Feb 23, 1982 |
| Priority date | — |
| Expiry date | Mar 7, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tubular obturator for use with a hollow body e.g. a pipeline or cylindrical container, terminating in a cylindrical opening for closing the opening when it is desired to subject the body to a pressure test, comprises a cover, the diameter of which is slightly smaller than that of the opening of the body to be tested, and a cylindrical skirt extending from the cover and comprising a plurality of strips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.