Fan with adjustable guide vanes
US6394766B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 1, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Nov 1, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D19/002
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention is a fan with adjustable vanes for controlling the width of the wind generated by the fan. The vanes are adjustable to any angle. Preferably, the vanes are set at 10° with the generated wind for a narrow, focused beam, and to 45° with the generated wind for a diffuse, flood beam. The vanes are adjustable from a dial located on the outside of the fan housing. A motor drives the fan. The motor is controlled by a rotating dial on the outside of the fan housing. The rotating dial allows for adjusting the motor speed from 0 to 100%. Pressing a “burst” button located on the outside of the fan housing instantly provides 100% motor speed. The fan motor runs at full speed for as long as the “burst” button is depressed. A mounting yoke is pivotally connected to opposite sides of the fan housing, allowing the fan to be set at various angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.