Heat dissipating fan with manual adjustment rotational speed
US7351137B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2004 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Apr 28, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a rotational speed adjustment device or switch that is provided in a corner screw hole at a front or back of a heat dissipating fan frame, the rotational speed adjustment device or switch being electrically connected to a power source of the fan by means of a power cord or other conductive metals, the adjustment device or switch being extended with a knob that is individually exposed out of the fan frame, the heat dissipating fan may be installed in any space that requires heat dissipation or to an outer periphery of a unit casing, to allow a user to adjust rotational speed of the heat dissipating fan at one's desire at any time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.