Multi-use personal ventilation/filtration system

Patent No. 8,333,816

Issued: December 18, 2012
Filed: February 8, 2010

Inventors: Kummer; Joseph (Fayetteville, NY), Allred, III; Jimmie B. (Skaneateles, NY)
Assignee: Propulsive Wing LLC (Elbridge, NY)


A ventilation device uses a cross-flow fan and one or more filters, where the filter preferably has a J-shape that at least partially surrounds the rotor of the cross-flow fan. In one embodiment, the filter includes a plurality of pleats, preferably along a bottom surface of the filter. The filters preferably remove particles, undesired gases, and micro-organisms. A filtration and ventilation system with at least one first ventilation device and at least one second ventilation device larger than the first ventilation device, as well as a method of filtering contaminants out of air using a personal ventilation device, are also disclosed.

Reference to Related Applications

This is a continuation-in-part of copending application Ser. No. 12/237,885, filed Sep. 25, 2008, entitled "MULTI-USE PERSONAL VENTILATION/FILTRATION SYSTEM", which claimed one or more inventions which were disclosed in Provisional Application No. 60/975,377, filed Sep. 26, 2007, entitled "Multi-Use Personal Ventilation/Filtration System". This application also claims one or more inventions which were disclosed in Provisional Application No. 61/150,907, filed Feb. 9, 2009, entitled "MULTI-USE PERSONAL VENTILATION/FILTRATION SYSTEM". The benefit under 35 USC .sctn.119(e) of the United States provisional applications is hereby claimed, and the aforementioned applications are hereby incorporated herein by reference.


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