Laser level and square
US5531031A · kind A · utility
Inventor
Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S33/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for leveling and squaring which includes a level body having a spirit vial or electronic inclinometer, wherein a battery powered laser module assembly is rotatably mounted in one end of the level body for emitting a visible laser beam therefrom. The level body contains a transparent window which allows the laser beam to exit therefrom. Further, the level body has a groove parallel the longitudinal axis thereof to provide a horizontal (0.degree.) reference line. Wherefore, the laser beam establishes a precise line, which is variably adjustable from horizontal (0.degree.) to 90.degree. thereto, for alignment and squaring uses. Magnetic strips are used for attaching the level body to ferromagnetic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.