Instrument for determining level or plumb orientations
US11828595B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 12, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Dec 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An instrument for determining level or plumb orientations includes an elongated body having a plurality of orientation measurement devices. Each of the orientation measurement devices can indicate either a level or plumb orientation depending on a position of the instrument. The orientation measurement devices each include a chamber having front and rear convex sides, a fluid contained in the chamber, and an air bubble floating in the fluid. The elongated body includes a set of first openings and a set of second openings. The orientation measurement devices are embedded into the elongated body through the first set of openings and the orientation measurement devices each include bubble therein viewable from the front and back of the elongated body. The bubble is also viewable from the top and bottom of the elongated body through the second set of openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.