Air concentrator nozzle for portable blower
US6003199A · kind A · utility
30Cited by
14References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 1998 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | May 15, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An improved air concentrator nozzle for creating an increased air exit velocity from an extension tube of a portable blower or blower/vacuum. The extension tube tapers from a larger, upstream end to a smaller, downstream end. The nozzle is inserted into the upstream end of the extension tube and drops until it protrudes outwardly from the downstream end of the extension tube. An interference fit between an exterior surface of the nozzle and an interior surface of the downstream end of the extension tube restrains the nozzle relative to the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.