Electrostatic cloth attachment for vacuum head
US7337494B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2004 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Jul 24, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L13/40
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum head assembly is disclosed which includes a vacuum head detachably connected to a secondary head, which is designed to carry an electrostatic cloth. The secondary head assumes a horizontal position behind the vacuum head so that the scoop of the vacuum head moves across the surface to be cleaned first followed by the secondary head, equipped with the electrostatic cloth. The cloth thus engages the floor after the scoop of the vacuum head. The secondary head carrying the electrostatic cloth may be easily connected to and disconnected from the vacuum head thereby rendering the vacuum head suitable for both hard and soft (i.e., carpeted) surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.