US 11,969,679 B2
Surface-enhanced copper filter for air purification and system and method for using
Matthew Mashburn, Dallas, TX (US); and Johnny Brewer, Bowie, TX (US)
Filed by Matthew Mashburn, Dallas, TX (US); and Johnny Brewer, Bowie, TX (US)
Filed on Mar. 19, 2021, as Appl. No. 17/206,417.
Prior Publication US 2022/0297039 A1, Sep. 22, 2022
Int. Cl. B01D 46/00 (2022.01); B01D 39/12 (2006.01); B01D 39/20 (2006.01); B01D 46/52 (2006.01)
CPC B01D 39/12 (2013.01) [B01D 39/2041 (2013.01); B01D 46/0001 (2013.01); B01D 46/0005 (2013.01); B01D 46/0028 (2013.01); B01D 46/0032 (2013.01); B01D 46/521 (2013.01); B01D 2239/0613 (2013.01); B01D 2239/0618 (2013.01); B01D 2279/50 (2013.01); B01D 2279/65 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A filter assembly for air purification comprising:
a supportive filter housing having a size and shape dimensioned to fit in a receiving space for an HVAC heating, ventilation and air conditioning system, said supportive filter housing having a frame with a plurality of side members, and said side members defining a first, second, third and fourth sides connected at a first, second, third and fourth corners and defining an open space in the middle of the four sides and four corners including a front and back open area for airflow, each of said members being U-shaped with a narrow lip extending into the front and back open areas;
a surface-enhanced copper filter configured for placement in the supportive filter housing to reside in said open space in the middle of the four sides and four corners of said supportive filter housing, said surface-enhanced copper filter having a first surface with dimensions on a first plane that extends in the open area between the plurality of side members of said supportive filter housing and configured to be retained within its plurality of side members of said supportive filter housing; and,
one or more copper quills having quill surface extensions coated with a substantially pure solid elemental copper material; said one or more copper quills being placed said open space in the middle of the supportive filter housing to promote contact with airborne contaminants and support air purification using the solid elemental copper on the surface enhanced copper fly.
 
12. A method for purifying air comprising the steps of:
providing an air filter assembly configured for installation in an air ventilation system, said air filter assembly having a filter housing surrounding a surface-enhanced copper filter configured with a plurality of pleated woven filter materials and at least one of the pleated woven filter materials is a substantially pure solid elemental copper material located in at least a portion of an open air ventilation area, wherein said woven copper filter material has alternating interlaced and overlapping substantially pure copper fiber filaments forming a weave of substantially pure copper filter, said weave of alternating interlaced and overlapping substantially pure copper fiber filaments create pore spaces between the substantially pure copper fiber filaments so that air may be directed through the pore spaces thereby coming into contact with the copper on the surface of the substantially pure copper fiber filaments;
said surface-enhanced weave of substantially pure copper filaments configured in a pleated manner to contact biological contaminants and other pollutants in an airflow of the open air ventilation area to come in contact with said biological contaminants;
said filter housing having a frame with top, bottom, left side and right side u-shaped members surrounding the surface-enhanced copper filter;
placing said filter housing in the filter assembly; said air ventilation system having a perforation to accommodate the exterior housing;
activating the ventilation system to create an air flow through the filter assembly, wherein the surface-enhanced copper filter removes biological contaminants and other pollutants from the air, inactivating said biological contaminants; and,
returning air to the environment after removal of biological contaminants and other pollutants from the air, and inactivating said biological contaminants.