Method of determining a horizontal profile line defined by walls that are essentially vertical, and an apparatus for implementing said method
US7298467B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2005 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Jan 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/1092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a method of determining a horizontal profile line defined by walls that are essentially vertical, by using a pointer having two calibrated reference points, the method comprising the following successive steps:a) placing the pointer horizontally in contact with a point on the profile line to be determined;b) from an origin point, measuring in succession the lengths of segments joining the origin point to each reference point, and also the angle between the two segments;c) deducing by calculation the coordinates of the contact point in the associated horizontal plane, and storing said coordinates; andreiterating steps a), b), c) for a plurality of points on the profile line to be determined, including at least the angle points situated at the intersections between said essentially vertical walls.The invention also provides apparatus for implementing the above method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.