US 11,666,842 B2
Device that selectively delivers molecular active components and reduces airborne contaminants
Iyam Lynch, Clemmons, NC (US); Stephen Dellinger, Spruce Pine, NC (US); Eric Grindley, Cary, NC (US); and Ken So, Duarte, CA (US)
Appl. No. 16/464,022
Filed by Iyam Lynch, Clemmons, NC (US); Stephen Dellinger, Spruce Pine, NC (US); Eric Grindley, Cary, NC (US); and Ken So, Duarte, CA (US)
PCT Filed Jan. 15, 2018, PCT No. PCT/US2018/013739
§ 371(c)(1), (2) Date May 24, 2019,
PCT Pub. No. WO2018/098508, PCT Pub. Date May 31, 2018.
Claims priority of provisional application 62/426,697, filed on Nov. 28, 2016.
Prior Publication US 2019/0381433 A1, Dec. 19, 2019
Int. Cl. B01D 39/20 (2006.01); B01D 39/16 (2006.01); A24F 7/04 (2006.01); B01D 46/12 (2022.01)
CPC B01D 39/2017 (2013.01) [B01D 39/1653 (2013.01); A24F 7/04 (2013.01); B01D 46/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A smoking apparatus, comprising:
a first section comprising:
a loading space; and
a transport region immediately downstream of the loading space;
a second section comprising a negative pressure generation system; and
a filtration region immediately downstream of the transport region and between the negative pressure generation system and the transport region, the filtration region comprising a filter cartridge for selective delivery of molecular active components from bulk airborne substances to a user, the filter cartridge comprising:
a pleated flat sheet that comprises filter material, wherein the pleated flat sheet comprises a pleat density of up to 17 pleats per inch, a pleat depth between 0.1-2 inches, and a pleat height of 0.3-3 inches, wherein the filter cartridge provides a filtration efficiency of 95% or greater for particulate matter sizes less than or equal to 300 nm in diameter at all face velocities in a range that extends from 0.2 cm/s to 6 cm/s; and
a first diffusive element located in the transport region to provide laminar air flow and cooling through the transport region, the first diffusive element comprising a plurality of walls that intersect to form a plurality of rectangles in a grid shape at an interior of the first diffusive element, wherein each rectangle comprises a part of a first wall that intersects a part of a second wall, wherein a length of the part of the first wall and a length of the part of the second wall are in a range of 0.5 mm to 5 mm,
wherein the first section comprises a first part of the filtration region that includes a first opening,
wherein the second section comprises a second part of the filtration region that includes a second opening,
wherein the filter cartridge occupies the first opening or the second opening,
wherein the first part of the filtration region and the second part of the filtration region are sized to mate with one another to connect the first section and the second section to one another, and
wherein, when the first section and the second section are connected to one another and assembled with the filter cartridge, the filter cartridge overlaps with both of the first section and the second section in a plan view.