Colorant sensors
US11285728B2 · kind B2 · utility
0Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2018 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Apr 13, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0848
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In various examples, colorant sensors can include a printing device comprising a hopper to receive a colorant, a supply to receive the colorant from the hopper, an aperture disposed between the hopper and the supply, a light emitter to emit light that passes through the aperture, and a light sensor located on the opposite side of the aperture relative the light emitter to sense a portion of the emitted light that passes through the aperture to permit determination of whether colorant present in the aperture based on the portion of the emitted light sensed by the light sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.