Nozzle device comprising at least one light-emitting source
US11800959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2021 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Jun 18, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A nozzle device intended for use in a cleaning appliance such as a vacuum cleaner is described. The nozzle device can be moved over a surface to be cleaned. The nozzle device includes at least one light-emitting source arranged at a side of the nozzle device, and the at least one light-emitting source emits light from the respective side of the nozzle device. The nozzle device further includes a controlling arrangement for varying, at least one parameter of the at least one light-emitting source in relation to actual circumstances of a cleaning action between a functional value and at least one default value which is different from the functional value, and for setting the functional value of the parameter when the respective side is in the vicinity of an obstacle on the surface to be cleaned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.