Motorized tape measure
US11466969B2 · kind B2 · utility
4Cited by
65References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Apr 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2003/103
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various aspects of tape measures with one or more of a sensor, a motor, and a clutch, are shown. The sensors described herein detect, through various mechanisms, the position of the retraction system of a tape measure. The measurements by the sensors may be used to control a motor to adjust an amount of tension in the spiral spring of a tape measure. In various embodiments a motor interacts with the retraction system of the tape measure via a clutch, which moderates an amount of force that the motor can communicate to the retraction system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.