Toroidal vortex bagless vacuum cleaner
US6687951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jun 28, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15D1/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed are improved vacuum cleaning apparatus that utilize toroidal vortex air flow in order to establish a pressure differential capable of attracting debris. These systems differ significantly from prior vacuum cleaners in that they are essentially closed systems; there is no constant intake and exhaust of fluid. Disclosed herein are toroidal vortex vacuum cleaner nozzles that function with a fluid delivery system, which, in combination, yield a toroidal vortex that is split between the extreme ends of the nozzle. Also disclosed is a complete toroidal vortex vacuum system employing a centrifugal dirt separator. The present invention excels in being more efficient, lighter weight and quieter than the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.