Vacuum cleaner with improved suction inlet
US5699586A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/30
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner with a floor traveling head having a housing, a rotatable brush, and two motors. The housing has a suction inlet with an entrance at its bottom and a separate pocket in the bottom of the housing for the rotatable brush. A wall of the housing separates the pocket from the suction inlet such that the entrance to the suction inlet has a relatively small area to maximize vacuum pull at the entrance. The suction inlet has a lower section with straight wall sections that are angled to form smaller areas at the lateral ends of the suction inlet. The suction inlet has an exit aperture directly into a collection assembly such that air velocity increases from the lower section to the upper section and then decreases from the upper section into the collection assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.