Retractable hose extension for a vacuum
US7306012B2 · kind B2 · utility
15Cited by
10References
24Claims
0Family size
Inventors
Key dates
| Filing date | May 10, 2004 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Feb 25, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/698
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A retractable hose extension for a vacuum having an expandable hose within a containment structure, a first coupling at the first end of the hose and in the first end of the containment structure for connecting the hose to a vacuum, a valve at the second end of the hose, and either a door or other releasable retention device for the hose. Preferably, the valve is an iris valve. Two fixed embodiment and one portable embodiment exist. The first fixed embodiment is inserted within a wall. The second fixed embodiment is rotatably attached to a tube contained within or running below a ceiling and extending from a vacuum system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.