Method and apparatus for vertically aligning a structure
US5450675A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for vertically aligning a structure. The vertical alignment device has a main body with a front face, a back surface, two side surfaces, and a top reflective surface with an edge and a cross hair extending from the edge; a planar member having a cross hair and being attached to the top surface; and horizontal level. The method of vertically aligning a structure substantially comprises the steps of positioning the vertical alignment device against the structure to be vertically aligned, moving the alignment device such that the top surface cross hair is in alignment with the planar member cross hair when looking into the top reflective surface, manipulating the structure such that both the top surface cross hair and the planar member cross hair are in alignment with the center line of the structure when looking into the top reflective surface, and positioning the main body such that the level indicates that the main body is horizontally level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.