Drain field system
DCFirst Claim
1. A drain field assembly having a top, a bottom, and two sides for use with a sewage disposal system, the assembly comprising:
- a generally cylindrical distribution pipe for receiving liquid effluent from the sewage disposal system, the distribution pipe having an inlet at a first end, a second end, a cylindrical axis, a cylindrical cross section, a first half and a second half defined by an imaginary plane bisecting the distribution pipe along the cylindrical axis and through the cylindrical cross section, a wall, and a plurality of holes through the wall, the holes distributed along the second half;
a plurality of generally cylindrical void pipes for receiving effluent from the distribution pipe, retaining the effluent for a time, and distributing the effluent to an area of soil, each void pipe having a cylindrical axis, a wall, a plurality of holes through the wall, and a plurality of slots through the wall, the slots smaller than the holes;
wherein;
the distribution pipe is positioned along the top of the assembly with the second half facing the bottom of the assembly; and
the distribution pipe and the void pipe are situated in a plurality of adjacent rows, the cylindrical axes of the distribution pipe and the void pipes generally parallel to each other and to the sides of the drain field assembly, with one row comprising void pipes along the bottom of the assembly.
4 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A drain field and a drain field assembly for use with a sewage disposal system are provided that do not require the use of aggregate in the form of rock, gravel, shale, or the like. The assembly contains a distribution pipe having a plurality of holes disposed along its bottom half for receiving liquid effluent. Alongside and beneath the distribution pipe are positioned a plurality of void pipes having holes and slots therein that serve to retain and distribute the effluent received from the distribution pipe. Draped over the top and along the sides of the assembly is a protective sheeting that is impervious to soil and liquid permeable that serves to keep soil from entering the pipes and also to aid in evapotranspiration. The drain field of the present invention contains the assembly positioned within a trench and covered with backfill material.
32 Citations
22 Claims
-
1. A drain field assembly having a top, a bottom, and two sides for use with a sewage disposal system, the assembly comprising:
-
a generally cylindrical distribution pipe for receiving liquid effluent from the sewage disposal system, the distribution pipe having an inlet at a first end, a second end, a cylindrical axis, a cylindrical cross section, a first half and a second half defined by an imaginary plane bisecting the distribution pipe along the cylindrical axis and through the cylindrical cross section, a wall, and a plurality of holes through the wall, the holes distributed along the second half; a plurality of generally cylindrical void pipes for receiving effluent from the distribution pipe, retaining the effluent for a time, and distributing the effluent to an area of soil, each void pipe having a cylindrical axis, a wall, a plurality of holes through the wall, and a plurality of slots through the wall, the slots smaller than the holes;
wherein;the distribution pipe is positioned along the top of the assembly with the second half facing the bottom of the assembly; and the distribution pipe and the void pipe are situated in a plurality of adjacent rows, the cylindrical axes of the distribution pipe and the void pipes generally parallel to each other and to the sides of the drain field assembly, with one row comprising void pipes along the bottom of the assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A drain field assembly having a top, a bottom, and two sides for use with a sewage disposal system, the assembly comprising a plurality of subassemblies of pipes, each subassembly comprising:
-
a generally cylindrical distribution pipe having a first end, a second end, a cylindrical axis, a cylindrical cross section, a first half and a second half defined by an imaginary generally horizontal plane bisecting the distribution pipe along the cylindrical axis and through the cylindrical cross section, a wall, and a plurality of holes through the wall, the holes distributed along the second half; a plurality of generally cylindrical void pipes for receiving effluent, retaining the effluent for a time, and redistributing the effluent, each void pipe having a cylindrical axis, a wall, a plurality of holes through the wall, and a plurality of slots through the wall, the slots smaller than the holes; three rows of pipes positioned in a close-packed arrangement having a generally triangular cross section, the cylindrical axes thereof generally parallel to each other and to the sides of the subassembly, the three rows comprising; a first row comprising one distribution pipe and two void pipes, one void pipe on either side of the distribution pipe; a second row comprising two void pipes, the distribution pipe holes facing the second row; and a third row comprising one void pipe; wherein in use a plurality of subassemblies are positioned in a trench, with at least one subassembly having the first row as a top row, the distribution pipe of the top row connected to a source of effluent to be treated, the effluent flowing from the distribution pipe through the distribution pipe holes, into adjacent void pipes through the void pipe holes and slots, and into the trench. - View Dependent Claims (17, 18, 19, 20)
-
-
21. A drain field for use with a sewage disposal system comprising:
-
a first and a second generally rectangular trench, each having a depth beneath ground level; a first and a second drain field assembly dimensioned to reside within the first and the second trench, respectively, each having a top, a bottom, two sides, a width, and a height, the first assembly positioned within the first trench and the second assembly positioned within the second trench, both assemblies having the assembly bottom facing downward and each comprising; a generally cylindrical distribution pipe for receiving liquid effluent from the sewage disposal system, the distribution pipe having an inlet at a first end, a second end, a cylindrical axis, a cylindrical cross section, a first half and a second half defined by an imaginary plane bisecting the distribution pipe along the cylindrical axis and through the cylindrical cross section, a wall, and a plurality of holes through the wall, the holes distributed along the second half; a plurality of generally cylindrical void pipes for receiving effluent from the distribution pipe, retaining the effluent for a time, and distributing the effluent to an area of soil, each void pipe having a cylindrical axis, a wall, a plurality of holes through the wall, and a plurality of slots through the wall, the slots smaller than the holes;
wherein;the distribution pipe is positioned along the top of the assembly with the second half facing the bottom of the assembly; the distribution pipe and the void pipes are situated in a plurality of adjacent rows, the cylindrical axes of the distribution pipe and the void pipes generally parallel to each other and to the sides of the drain field assembly, with one row comprising void pipes along the bottom of the assembly; an effluent pipe connectable to an outlet of the sewage disposal system; a connector having an inlet connected to the effluent pipe and further having a first and a second outlet connected, respectively, to the distribution pipes of the first and the second assembly; backfill material sufficient to cover the first and the second drain field assembly. - View Dependent Claims (22)
-
Specification