Level with securing apparatus
US6332277A · kind A · utility
Inventors
Key dates
| Filing date | Jul 6, 1999 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Jul 6, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A level including a frame having a reference surface, a level sensor secured to the frame, and an articulated arm pivotally connected at one end to the frame for securing the reference surface to a test surface. The articulated arm includes an inner member pivotally connected to the frame at one end and an outer member extending from a free end of the inner member. The inner member is rotationally biased against the frame while the outer member is pivotally connected to the inner member and rotationally biased against the inner member. The inner and outer members are rotationally biased in opposite directions for folding against the frame. The level may also include spools, idler wheels, take-up fingers, and swivels for supporting the band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.