US 12,138,570 B2
Filter media insert structures and methods of installation
William J. Gannon, Northford, CT (US); and Paul Melaccio, Clinton, CT (US)
Assigned to SOLIDIFICATION PRODUCTS INTERNATIONAL, INC., Northford, CT (US)
Filed by Solidification Products International, Inc., Northford, CT (US)
Filed on Mar. 30, 2022, as Appl. No. 17/708,583.
Application 17/708,583 is a division of application No. 16/913,554, filed on Jun. 26, 2020, granted, now 11,325,062.
Claims priority of provisional application 62/866,935, filed on Jun. 26, 2019.
Prior Publication US 2022/0249991 A1, Aug. 11, 2022
Int. Cl. B01D 35/30 (2006.01); B01D 17/02 (2006.01); E03F 5/04 (2006.01); E03F 5/14 (2006.01)
CPC B01D 35/306 (2013.01) [B01D 17/0202 (2013.01); B01D 35/301 (2013.01); B01D 2201/307 (2013.01); E03F 5/041 (2013.01); E03F 5/14 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A trench filtration assembly for installation within a trench, comprising:
a housing having a top, a bottom, a front end, internal sidewalls, and a rear end, said housing forming a fluid-tight seal with respect to said trench when installed such that fluid passing through said trench filtration assembly is directed through said housing;
a sleeve attached to, and in fluid communication with, said housing rear end and having a sleeve bottom surface in contact with a top surface of said housing bottom, said sleeve forming a pathway for fluid exiting said housing;
a removable trench box attachable to said housing such that fluid entering said trench is directed to, and passes through, said trench box;
a filter media plug for filtering oil and other contaminants from a fluid, said filter media plug installed within said sleeve, such that fluid may only exit said trench through said filter media plug, said filter media plug including ester-based fluid absorption/adsorption filter media;
a mounting bracket for securing said trench box to said housing front end;
a removable grate disposed within said trench box for preventing passage of rocks and debris through the housing;
a trench filtration assembly pre-filter grate above said housing top and including a prefilter material interposing said pre-filter grate and said housing top; and
a gasket disposed between the mounting bracket and trench box for maintaining a fluid-tight seal between said trench box and said housing;
said trench filtration assembly adapted for installation within a trench such that said trench filtration assembly housing is at least partially within said trench.