The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 2004
Filed:
Apr. 01, 2003
Andrew Lee, Fremont, CA (US);
Antec, Incorporated, Fremont, CA (US);
Abstract
A cooling fan with a light-emitting device has a frame, multiple light-emitting diodes (LEDs), a circuit board, a stator, permanent magnets and an impeller. The permanent magnets are formed around the inside-perimeter of the casing of the impeller. The impeller is rotated by the interaction force between the poles of the electro-magnetized stator and the poles of the permanent magnets in the impeller. The rotational speed of the impeller is controlled by the drive circuitry on the circuit board. Each LED projects light towards the impeller and to the frame so the light will reflects and bounces all over the fan to produce a fantastic visual effect. The LEDs can be made to twinkle based on the rotational speed of the fan to increase the visual attractiveness.