Laser line projector with spherically rotatable support and level/plumb indicators for the support
US7174647B2 · kind B2 · utility
10Cited by
19References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2005 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Sep 12, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S33/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spherically rotatable support for a light image projector has level and/or plumb indicators for leveling or plumbing a central reference frame of its spherical rotation. A projected light image, such as a laser line segment of relatively short length may be successively stepped across a long wall while maintaining its level or plumb condition. A low powered laser or other light source may be used to generate the short-length, line segment in place of a more high powered light source that would otherwise be needed to illuminate the full length of the wall or other such surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.