Method and a device for determining the cross-sectional dimensions of the inner space of elongated, tubular bodies
USRE30088E · kind E · reissue
6Cited by
3References
6Claims
0Family size
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Inventors
Key dates
| Filing date | Jan 4, 1977 |
| Grant date | Sep 4, 1979 |
| Priority date | — |
| Expiry date | Jan 4, 1997 |
Classification
- Technology area (CPC —)General
Abstract
When mapping out the internal cross-sectional dimensions of elongated, tubular bodies, correlated values of the external cross-sectional dimensions and wall thicknesses are measured along measuring lines from the outside of the body and the sum of the wall thicknesses measured along each measuring line is subtracted from the external cross-sectional dimension measured along the same or substantially the same measuring line. This avoids the use of measuring means in the interior of the tubular bodies, whereby the measuring can be carried out much faster and without the danger of injuring the internal surface of the bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.