Leaching chamber
AssigneePSA, Inc.
InventorTerrance H. Gray
Life of this patent
Estimating the term…
Abstract
A leaching chamber for burial in the ground includes biased ends which permit a series of chambers to arch clockwise or counterclockwise or to continue straight to form a leaching field. Each chamber is identical to every other chamber and includes identical mating flanges. For tighter arches, short adaptors can be used which have ends identical to the chambers.
Claims21
A conduit having a longitudinal axis, a lateral axis transverse to the longitudinal axis, and an open bottom, the conduit being fabricated to promote vertical stacking of like conduits, the conduit comprising:
- a support structure fabricated on the conduit to rigidly support the weight of stacked conduits, the support structure being a rigid section of a vertical column when like conduits are stacked.
A conduit having a longitudinal axis, an open bottom, and a base flange, the conduit comprising:
- a support structure fabricated on the conduit to interface with a like support structure on a like conduit when the conduits are stacked so as to rigidly support the weight of stacked conduits and maintain a fixed separation between the base flanges of the stacked conduits.
A molded plastic conduit having a longitudinal axis, an open bottom, and a base flange, the conduit comprising:
- a support structure including at least one support member on each end of the conduit to interface with a like support structure of a like conduit when the conduits are stacked, the support structure rigidly supporting the weight of the stacked conduits and maintaining a fixed separation between the base flanges of the stacked conduits.
Dependencies are inferred from the claim text.