Upright vacuum cleaner with spring loaded nozzle
US7340798B2 · kind B2 · utility
2Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2004 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Feb 11, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0081
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An upright vacuum cleaner includes a nozzle assembly, a canister assembly pivotally mounted to said nozzle assembly, a suction fan and drive motor and a biaser. The biaser has a first end that engages the nozzle assembly and a second end that engages the canister assembly. The biaser provides a positive downforce urging the forward end of the nozzle assembly toward the surface being cleaned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.