Leaching chamber having sidewall with tenced louvers
AssigneeInfiltrator Water Technologies, LLC
InventorsPaul R Holbrook, Roy E Moore, Jr., Bryan A Coppes
Life of this patent
Estimating the term…
Abstract
A corrugated thermoplastic leaching chamber has sidewall louvers that define sidewall slot openings. Each louver comprises an outward extending canopy, a cap integral with the outer end of the canopy, having a down slope greater than the slope of the canopy, and a preferably concave fence at the inner end of the canopy, for inhibiting ingress of soil. The chamber may be made by first thermoforming sheet material, preferably two-layer PET plastic sheet to the shape of the chamber, followed by mechanically cutting and deforming the sidewall, to create the opening and the fence.
Claims16
An arch shape cross section corrugated plastic chamber having opposing side base flanges running lengthwise along the chamber, the flanges lying in a horizontal plane, and opposing sidewalls, each sidewall running upwardly from a base flange to a top of the chamber;
- the chamber having a lengthwise center plane which is perpendicular to said horizontal plane;
- wherein each chamber sidewall comprises:
- a plurality of alternating peak corrugations and valley corrugations running transverse to the length of the chamber, each peak corrugation having an arch-curving sides where the peak mates with adjacent valleys and a plurality of vertically spaced apart openings, wherein the vertical boundaries of each opening are defined by spaced apart louvers, each louver running lengthwise within the peak corrugation of the sidewall, each louver comprising
- (a) a canopy running outwardly relative to said center plane and with no slope or a downward slope relative to said horizontal plane, the canopy having a top surface and an under surface, and an inner end and an outer end;
- (b) a cap, integral with the outer end of the canopy, running outwardly relative to said center plane and sloping downwardly relative to said horizontal plane, wherein the slope of the cap is greater than the slope of the canopy, the cap having a top surface and an under surface, and an inner end and an outer end;
- and,
- (c) a fence integral with the inner end of each canopy the fence running upwardly from said inner end of the canopy to an upper fence edge;
- wherein said top surface and said under surface of the canopy are nominally congruent with each other and said top surface and said under surface of the cap are nominally congruent with each other.
An arch shape cross section corrugated plastic chamber having opposing side base flanges running lengthwise along the chamber, the flanges lying in a horizontal plane, and opposing sidewalls, each sidewall running upwardly from a base flange to a top of the chamber;
- the chamber having a lengthwise center plane which is perpendicular to said horizontal plane;
- wherein each chamber sidewall comprises:
- a plurality of alternating peak corrugations and valley corrugations running transverse to the length of the chamber, each peak corrugation having an arch-curving sides where the peak mates with adjacent valleys and a plurality of vertically spaced apart slot openings, wherein the vertical boundaries of each slot opening are defined by spaced apart louvers, each louver running lengthwise within the peak corrugation of the sidewall, each louver comprising
- (a) a canopy running outwardly relative to said center plane and with no slope or a downward slope relative to said horizontal plane, the canopy having a top surface and an under surface, and an inner end and an outer end;
- (b) a cap, integral with the outer end of the canopy, running outwardly relative to said center plane and sloping downwardly relative to said horizontal plane, wherein the slope of the cap is greater than the slope of the canopy, the cap having a top surface and an under surface, and an inner end and an outer end;
- and,
- (c) a fence integral with the inner end of each canopy, the fence running upwardly from said inner end of the canopy to an upper fence edge having a concave shape, as projected into both the horizontal plane and the vertical center plane, the fence having opposing lengthwise ends which are connected to said sides of the peak corrugation.
Dependencies are inferred from the claim text.