Device used for aligning a rotatable drum
US11204231B1 · kind B1 · utility
1Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Jul 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tool for finding a point on the ground that is directly below the bottom dead center of a rotatable drum. The tool includes magnetic wheels that support the weight of the tool as the tool is rolled along the bottom of the drum and a level that indicates when the tool is in the proper position to direct a pointer downwardly to define the point on the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.