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:
May. 12, 2020
Filed:
May. 08, 2017
Applicant:
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Inventor:
Gregory M. Daly, Seattle, WA (US);
Assignee:
MICROSOFT TECHNOLOGY LICENSING, LLC, Remond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); F04D 29/66 (2006.01); F04D 25/08 (2006.01); F04D 29/32 (2006.01); G05B 15/02 (2006.01); F04D 29/28 (2006.01);
U.S. Cl.
CPC ...
F04D 29/666 (2013.01); F04D 25/08 (2013.01); F04D 29/281 (2013.01); F04D 29/328 (2013.01); F04D 29/662 (2013.01); F04D 29/663 (2013.01); G05B 15/02 (2013.01);
Abstract
A fan for cooling an electronic device is described, wherein the fan can include an enclosure and a motor secured within the enclosure. The fan can also include an impeller to be turned by the motor, the impeller having a plurality of blades, wherein an angular spacing of the blades results in an audio spread-spectrum within a range of audio frequencies. In some examples, an arrangement of the blades has a center of mass below a threshold, and the angular spacing of the blades and a blade pass frequency (BPF) results in sound that is distributed in the range of audio frequencies.