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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.:

US 10507422 B1

PDFFull Text
Date of Patent:
Dec. 17, 2019

Filed:

Sep. 26, 2016

Localized ventilation systems and methods

Applicant:

Sprimo, Inc., Santa Clara, CA (US);

Inventors:

Raymond Combs, San Jose, CA (US);

Chunxiao Han, Dublin, CA (US);

Daniel K. Harden, Palo Alto, CA (US);

Jovan Pantelic, Berkeley, CA (US);

Assignee:

Sprimo, Inc., Santa Clara, CA (US);

Attorney:

Fish IP Law, LLP

Primary Examiner:

Minh Chau T Pham

Int. Cl.
CPC ...
B03C 3/32 (2006.01); B01D 46/04 (2006.01); B01D 46/02 (2006.01); B01D 46/46 (2006.01); B01D 35/30 (2006.01); B01D 45/12 (2006.01); B01D 50/00 (2006.01); F24F 3/16 (2006.01); F24F 11/00 (2018.01); B01D 46/00 (2006.01); B01D 46/24 (2006.01); B01D 46/42 (2006.01); B01D 46/44 (2006.01); F24F 7/06 (2006.01); F04D 17/16 (2006.01); F04D 29/70 (2006.01); F24F 11/30 (2018.01); F24F 110/64 (2018.01); F24F 120/10 (2018.01);
U.S. Cl.
CPC ...
B01D 46/46 (2013.01); B01D 46/0047 (2013.01); B01D 46/2403 (2013.01); B01D 46/429 (2013.01); B01D 46/4236 (2013.01); B01D 46/442 (2013.01); B01D 46/448 (2013.01); F04D 17/16 (2013.01); F04D 29/703 (2013.01); F24F 3/1603 (2013.01); F24F 7/06 (2013.01); F24F 11/0001 (2013.01); F24F 11/30 (2018.01); F24F 2110/64 (2018.01); F24F 2120/10 (2018.01); F24F 2221/38 (2013.01);
Abstract

Systems and Apparatus for a personal ventilation system that provides a personalized column of clean air surrounding a user's space is presented. The personal ventilation system includes an air purifier with a fan and an annular gap downstream of the fan. The annular gap has an inner radius that is within 95% of the outer radius. The annular gap structure allows the air purifier to produce a column of air with an entrainment ratio lower than other commercially available fan. At a distance of 1.5 meters, the air purifier is configured to have an entrainment ratio of lower than 40%. The air purifier also has a removable filter located upstream of the fan. The ventilation system is capable of delivering highly-localized filtered air to a user or location.

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