Upright vacuum cleaner having switch to detect a filter assembly
US10660497B2 · kind B2 · utility
0Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2017 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Mar 28, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/2889
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Upright vacuum cleaners that include a switch that detects whether a removable filter assembly has been connected to the vacuum cleaner are disclosed. In some embodiments, the upright vacuum cleaner includes a capacitor for protecting the switch from voltage transients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.