Blower nozzle with variable velocity output
US7419106B2 · kind B2 · utility
3Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Jan 30, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G20/47
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A nozzle for use with a walk-behind blower includes a nozzle restriction due to a sloped upper wall of the nozzle body. The nozzle restriction increases the air velocity in the upper region of the nozzle and forces leaves and debris downward so that airflow through the lower region of the nozzle more effectively laterally displaces them. The configuration of the nozzle body may be adapted to accommodate a variety of engine outputs while utilizing a common design for a blower frame, impeller and shroud.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.