Fan intake shield
US8328501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G20/47
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A power tool includes a housing having an intake aperture, a fan disposed within the housing and operable to draw air through the intake aperture, and a fan intake shield positioned adjacent the intake aperture. The fan intake shield includes a first rib, a second rib adjacent the first rib and spaced from the first rib to define an air flow path into the intake aperture between the first rib and the second rib, and a third rib adjacent the first rib and spaced from the first rib to define an air flow path into the intake aperture between the first rib and the third rib. Each of the first, the second, and the third ribs has a respective height, and the height of the first rib is greater than the height of the second rib and the height of the third rib.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.