Septic tank kit
The septic tank of the subject invention can be provided in kit form, and preferably comprises a tank lid, a tank bottom, a pair of opposing side walls, and a pair of opposing end walls having a tank flow outlet and a tank flow inlet, where a flange is affixed within the tank flow outlet and the tank flow inlet. The tank lid comprises a pair of lid openings, which are covered by hatch covers. The hatch covers comprise a hatch handle for ease of removal and are removably affixed to the tank lid with angle connection brackets. The septic tank is assembled using angle connection brackets, where the brackets are affixed to the tank lid, tank bottom, side walls, and end walls using, for example, stainless steel cap screws. A silicone sealant is interposed between the tank lid, tank bottom, side walls, end walls and the connection brackets, forming a substantially leak proof seal.
This application is a continuation application of co-pending patent application Ser. No.10/675,365, filed Sep. 30, 2003; which is a continuation of application Ser. No. 10/439,024, filed May 14, 2003, now abandoned, which claimed the benefit of provisional patent application Ser. No. 60/450,974, filed Feb. 28, 2003 and provisional patent application Ser. No. 60/415,458, filed Oct. 1, 2002; all of which are hereby incorporated by reference in their entirety.
FIELD OF THE INVENTIONThe present invention relates generally to septic tanks, and more particularly, to a septic tank kit which can optionally be assembled at the site of installation.
BACKGROUND OF THE INVENTIONSeptic tanks are typically used at dwellings that are not connected to public sewage facilities. The septic tank is typically located underground and is basically a batch sewage processor. Sewage from the dwelling is sent to the septic tank where it is acted on by microorganisms, where through biochemical reactions the sewage is decomposed. Subsequently, liquid and gaseous effluent is discharged into the surrounding soil. Solids remaining in the tank are periodically cleaned. More information regarding septic tanks can be found in, for example, Woodson, R. Dodge: Builder's Guide to Wells and Septic Systems, McGraw Hill; and Burks, Bennette D. and Mary Margaret Minnis: Onsite Wastewater Treatment Systems, Hogarth House, Ltd. Both of these are incorporated herein by reference to the extent they are not inconsistent with the following explicit teachings.
Prior art septic tanks are often made of concrete, glass fiber reinforced resin materials, or rotationally molded plastic materials. Because of the septic tank size and weight, they are typically transported to the work site by truck, and may require a crane for placing into position.
BRIEF SUMMARY OF THE INVENTIONThe septic tank of the subject invention is available as a septic tank kit which can be assembled on site comprising, in a preferred embodiment, a tank lid, a tank bottom, a pair of opposing side walls, and a pair of opposing end walls having a tank flow outlet and a tank flow inlet, where a flange is affixed at the tank flow outlet and at the tank flow inlet. The tank lid preferably comprises a pair of lid openings, which are covered by removable hatch covers. The hatch covers preferably comprise a hatch handle for ease of removal and in one embodiment are removably affixed to the tank lid with angle connection brackets.
The septic tank is assembled using angle connection brackets, where the brackets are affixed to the tank lid, tank bottom, side walls, and end walls using fasteners such as, for example, stainless steel cap screws. A silicone sealant can be interposed between the tank lid, tank bottom, side walls, end walls, and the connection brackets, forming a substantially leak proof sealing gasket.
The septic tank kit further preferably comprises a baffle positioned within the septic tank to form two compartments: an inlet compartment ideally but not necessarily encompassing approximately ⅔ of the total volume of the tank, and an outlet compartment. The baffle presents a barrier which enables the larger sediment to settle in the inlet compartment, with the remaining effluent flowing into the outlet compartment through a baffle port and/or over the top of the baffle if the baffle does not extend completely from the floor of the tank to the tank's ceiling.
To provide greater structural rigidity, the septic tank can comprise structural support. In embodiments with a baffle, the baffle extends upward from the bottom of the tank and from one side of the tank across to the other, thereby providing some additional internal horizontal support. If the baffle is an embodiment that extends upward completely to the tank's ceiling, then it also provides additional internal vertical support. However in embodiments without a baffle, even when a baffle is present, additional internal support may be desired. For example, the inlet compartment can comprise vertical and horizontal structural supports, where at least one vertical support member is interposed between the tank lid and the tank bottom, being connected to the tank bottom using, for example, a flange or collar. The inlet compartment can further comprise two or more horizontal support members, wherein at least one horizontal support is connected to and interposed between the side walls, and the at least one other horizontal support is connected to and interposed between the inlet end wall and the baffle. The vertical support can be affixed to the horizontal supports to provide greater stability.
The outlet compartment can optionally comprise at least one horizontal support, where the horizontal support is connected to and interposed between the outlet end wall and the baffle. Obviously, in view of the teachings herein, if vertical or other horizontal supports are desired in the outlet compartment, they are easily provided as will be readily apparent to the skilled artisan.
For ease of use and transportation to the work site, the septic tanks taught herein are available in an unassembled condition where they can then be assembled on the work site. Although not necessary, it is preferred that kits according to the subject invention include instructions for assembly into septic tanks.
This is the first teaching of using sheet plastic, or flat plastic panels, for the construction of septic tanks. Acceptable plastics include, but are not limited to, such plastics as homopolymer polypropylene (homopolymer) or copolymer polypropylene (copolymer). As will be readily apparent to the skilled artisan in view of the teachings herein, any and all plastics available as sheet stock (i.e., PVC, polyethylene) can be used to practice the subject invention. It is also the first teaching of the use of extrusion welding in the manufacture of septic tanks. Extrusion welding is a well-known technique where an extruded plastic wire, (for example, ⅛″ or 3/16″ diameter polypropylene) is superheated, melting and effectively forming a caulk between two plastic sheets or panels. Superheated air from the tip of the welding gun also heats and melts the panels and the bead of caulk forming a homogeneous weld bonding the sheets (or whatever other forms of plastic are the subject of the weld) together. In addition, the subject invention constitutes the first use of plastic angles and special plastic extrusions (such as, for example, right angle brackets of PVC, copolymer polypropylene or homopolymer polypropylene) with fasteners (such as, for example, stainless steel screws) to manufacture or assemble septic tanks.
All patents, patent applications and publications referred to or cited herein, or from which a claim for benefit of priority has been made, are incorporated by reference in their entirety to the extent they are not inconsistent with the explicit teachings of this specification, including U.S. Pat. No.4,882,046; U.S. Pat. No. 4,961,670; U.S. Pat. No.5,361,930; and U.S. Pat. No. 6,280,614.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 2A-D are perspective views of the septic tank assembly of the subject invention of
FIGS. 6A-F are open top views of a septic tank according to the subject invention.
FIGS. 7A-E are open-end views of a septic tank according to the subject invention.
As shown in
In an embodiment, as shown in
In an embodiment, the septic tank kit further comprises a baffle 10, wherein the baffle 10 is positioned within the septic tank forming two compartments: an inlet compartment 22 encompassing approximately ⅔ of the total volume of the tank, and an outlet compartment 23. The baffle 10 presents a barrier which enables the larger sediment to settle in the inlet compartment 22, with the remaining effluent flowing into the outlet compartment 23 through the baffle port 12. Optionally, baffle 10 does not comprise a baffle port, in which case the baffle 10 should not extend completely from the tank bottom all the way to the tank top so that flow from the inlet compartment 22 into the outlet compartment 23 is accomplished over the top of baffle 10.
In an embodiment, the septic tank kit further comprises a plurality of structural support members 13, wherein the structural support members 13 are vertically and horizontally affixed to the tank bottom 18, side walls 8, and end walls 20, 21 optionally using a flange 6 at each attachment point. If flanges 6 are used to affix structural support members, then for this purpose it is generally preferred that they be of a relatively rigid construction, sufficiently rigid to ensure that the structural support members are affixed in place.
In an alternative embodiment, the structural supports 13 are connected to the tank bottom 18, side walls 8, and end walls 20, 21 using angled connectors 15.
In an embodiment, as shown in
In an embodiment, the structural support members 13 are 3″ diameter schedule 80 PVC pipe. Three different exemplary embodiments for common tank applications are, for example, ½″ thick bottom, sides, and ends, with a ¾″ thick lid; ⅝″ thick bottom, sides, and ends, with a ¾″ thick lid; and ¾″ thick bottom, sides, ends, and lid. Angle brackets in an embodiment can be 2″×2″×0.2″ right angles, and the fasteners can be, for example, stainless steel screws such as, for example, ¼″×14×1¼″ or ¼″×14×1½″ hex head screws. As the ordinary artisan will readily appreciate, the dimensions of the panels, angles, support members, and fasteners can be optimized for the particular task at hand, considering the strength of the materials involved. Preferably, for most standard septic tank volumes, if the panels are made of copolymer polypropylene, they will be at least ¼″ thick and no more than 4″ thick, although depending on the volume of tank desired, it may be optimal to have panels with thicknesses outside of this range, as will be within the skill of the ordinary artisan to make such optimizations. As an example of the advantageous weight characteristics of septic tanks constructed in accord with the teachings herein, the following is a list of approximate weights of certain embodiments of tanks having various volumes, wherein the tanks are made with bottoms, sides, and ends of ½″ thick copolymer and lids of ¾″ thick copolymer:
The foregoing are merely intended to illustrate the advantageous weight benefits of the subject tanks (as compared to the much heaver prior art concrete tanks of the same volume). The weights can vary depending on a number of factors such as panel thickness, panel dimension, various associated hardware (such as some types of fasteners), panel composition, etc., as would be readily apparent to the skilled artisan, and still would be within the scope of the subject invention.
In an embodiment, the septic tank lid 2, a tank bottom 18, a pair of opposing side walls 8, pair of opposing end walls 20, 21, and hatch covers 1 are made of plastic that is copolymer, or homopolymer.
In an embodiment, the septic tank lid 2 comprises only one opening.
In an embodiment, the tank flow inlet and tank flow outlet can be disposed in the same panel, preferably separated by a baffle.
In alternative embodiments, any hatch covers can be made of the same, or different, materials than the sides, ends, bottom, and lid.
Although septic tanks of the subject invention can be assembled and then transported to the site of intended use for subsequent installation, in a method of use, the septic tank, which is available in kit form, is assembled at the work site. The septic tank is transported to the work site and assembled as follows:
In an embodiment, the end walls 20, 21 and side walls 8 are connected to the tank bottom 18 with the angle connection brackets 11, wherein the brackets 11 are affixed using, for example, stainless steel cap screws 7. Prior to assembly, a silicone sealant 17 is interposed between the tank bottom 18, side walls 8, and end walls 20, 21 and the connection brackets 11, forming a substantially leak proof seal to allow for proper function of the septic tank.
In a preferred embodiment, connection brackets 11 are in the form of double-channel angle brackets similar to that depicted in
In alternative embodiments of the septic tank of the subject invention, the angle between the deep panel receiving channel and the shallow panel receiving channel can be either acute, or obtuse, as is required based on the intended ultimate configuration of the tank. For example, for the assembly of a tank having triangular side panels assembled in pyramidal form, all angles would be acute. See, for example,
Returning to the embodiment depicted in
As will be readily apparent to the ordinary skilled artisan, the panel thickness can vary depending on the size of the tank desired and the strength of the materials from which the panel is made, and the dimensions of the double-channel angle bracket according to the subject invention can be appropriately modified accordingly. However, for illustrative purposes, an example of a double-channel angle bracket depicted in
AB and ST are ⅝ inch
CD, EF, IJ, RS, and TU are ¼ inch
GH is 2⅛ inches
KL and VW are 1⅛ inch
MN is 1¼ inch
PQ is ½ inch
QT and PS 1/16 inch and
X is effectively a 90° angle causing deep panel receiving channel 101 and shallow panel receiving channel 102 to be perpendicular, with the internal corner at X effectively rounded at ¼ inch radius.
In a embodiment, the double-channel angle connection brackets can be provided with predrilled holes through which fasteners, such as stainless steel screws or any other fastener known to those of ordinary skill in the art which is effective for assembling the tank, can be inserted. In an alternative embodiment, the double-channel angle bracket can be drilled at the site of assembly. Optionally, as provided in the kit according to the subject invention, the double-channel connection brackets can be premounted on one or more of the edges of one or more of the panels in the septic tank kit.
In an embodiment, a baffle 10 is positioned within the partially assembled septic tank, forming two compartments, an inlet compartment 22 and an outlet compartment 23, where the inlet compartment 22 encompasses approximately ⅔ of the total volume of the tank. The baffle 10 presents a barrier which enables the larger sediment to settle in the inlet compartment 22, with the remaining effluent flowing into the outlet compartment 23 through the baffle port 12.
In an embodiment, structural support members 13 are positioned within and connected to the tank bottom 18, side walls 8, and end walls 20, 21. The inlet compartment 22 comprises at least three structural supports 13, a vertical support 24 interposed between the tank lid 2 and the tank bottom 18, being connected to the tank bottom 18. The inlet compartment 22 further comprises two horizontal supports 25, 26, where a first horizontal support 25 is connected to and interposed between the side walls 8, and a second horizontal support 26 is connected to and interposed between the inlet end wall 20 and the baffle 10. The outlet compartment comprises at least one horizontal support 27, wherein the horizontal support 27 is connected to and interposed between the outlet end wall 21 and the baffle 10.
The tank lid 2 is positioned on top of the partially assembled septic tank and connected to the brackets 11 using fasteners, such as, for example, stainless steel screws.
In an embodiment, the tank lid 2 comprises pre-drilled connection holes to facilitate attachment to the brackets 11.
In an embodiment, either or both of the tank lid 2 and tank bottom 18 can be provided in the kit with the connection brackets preattached to at least one edge thereof. In a preferred embodiment, double-channel angle connection brackets according to the subject invention are provided in the kit preattached to the edges of either or both of the tank lid 2 and tank bottom 18, preferably with the connection bracket affixed to the lid panel such that the edge of the lid panel is inserted into deep panel receiving channel 101 of each double-channel connection bracket affixed to its perimeter. Similarly, in an embodiment the bottom panel has double-channel connection brackets affixed thereto such that the panel edges are inserted into the deep panel receiving channel 101 of each double-channel connection bracket around its periphery. In this embodiment, as the kit is unpacked and the tank is assembled, the tank bottom 18 having double-channel angle connection brackets preaffixed around its periphery will be configured such that side panels can be inserted into shallow panel receiving channels 102 and then ultimately the tank lid, also having double-channel angle connection brackets affixed around its periphery can be lowered into place, with the top edges of the panels making up the side and end walls being inserted into the downward oriented shallow panel receiving channels 102 projecting perpendicularly downward from the periphery of the tank lid. Connection brackets are preferably used to connect the side walls to the end walls along the vertical edges where they meet. In a preferred embodiment, fasteners are inserted through the connection brackets and the panels contained therein to fasten the walls, top, and bottom of the tank in place. Extrusion welding can optionally replace or augment the connection of panels one to another.
The hatch covers 1 are positioned and connected to the tank lid 2 using alignment brackets 19 and appropriate fasteners, such as, for example, stainless steel screws.
In an embodiment, the tank lid 2 and the hatch covers 1 comprise pre-drilled connection holes to facilitate attachment to the alignment brackets 19.
Frequently, tanks according to the subject invention as well as other tanks of similar purposes, will be installed at a distance significantly below grade. In such cases risers are often needed to provide a link from the lid opening in a tank up to the grade surface. Because the distance that any particular tank is required to be buried below grade can vary depending on location and purpose, it is necessary that risers of various heights be available for use in connection with tanks according to the subject invention. In that regard, advantageously provided are modular risers, which can be made in a variety of heights, that are easily mounted to lid openings in tanks, and which can be sealably stacked one on top of the other depending on the depth of each tank with which they are used. An example of a single unit modular riser according to the subject invention is depicted in
In alternative embodiments, the septic tank kit can, upon assembly, yield tanks of various dimensions and configurations, as will be readily apparent to one of ordinary skill in the art in view of the teachings herein. For example, an alternative embodiment is depicted in
Referring to
Yet another alternative embodiment is depicted in
Turning now to
Still another embodiment of a tank assembly provided in kit form according to the subject invention is depicted in
As is readily apparent to one of ordinary skill in the art in view of the foregoing, a wide variety of septic tank configurations can be provided in kit form according to the teachings herein.
It should be understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.
Claims
1. A septic tank comprising at least four substantially flat plastic panels, means for sealably connecting the panels one to another, a tank flow inlet, and a tank flow outlet.
2. A septic tank according to claim 1, wherein said tank comprises a baffle, and wherein said baffle divides the interior of the tank into an inlet compartment and an outlet compartment.
3. A septic tank according to claim 1, wherein said tank comprises a plastic lid.
4. A septic tank according to claim 3, wherein said lid comprises at least one lid opening.
5. A septic tank according to claim 2, wherein said tank comprises a plastic lid.
6. A septic tank according to claim 5, wherein said lid comprises at least one lid opening.
7. A septic tank according to claim 6, wherein said lid comprises at least one lid opening above said inlet compartment and at least one lid opening above said outlet compartment.
8. A septic tank according to claim 1, wherein the means for connecting comprises a plastic double-channel angle connection bracket; said double-channel angle connection bracket comprising: a deep panel receiving channel, defined by a first external panel retaining wall and a first internal panel retaining wall; and a shallow panel receiving channel, angularly connected to said deep panel receiving channel, and defined by a second external panel retaining wall and a second internal panel retaining wall.
9. A septic tank according to claim 8, wherein said double-channel angle connection bracket further comprises
- a side stop extending from said first external panel retaining wall into said deep panel receiving channel;
- a side stop extending from said first internal panel retaining wall into said deep panel receiving channel;
- a side stop extending from said second external panel retaining wall into said shallow panel receiving channel; and
- a side stop extending from said second internal panel retaining wall into said shallow panel receiving channel.
10. A septic tank according to claim 9, wherein said double-channel angle connection bracket further comprises a bottom stop disposed within each of said deep panel receiving channel and said shallow panel receiving channel.
11. A septic tank according to claim 9, wherein each of said side stops comprises a sloped panel accommodation surface.
12. A septic according to claim 9, wherein said deep panel receiving channel and said shallow panel receiving channel are perpendicular to each other.
13. A septic tank according to claim 3, wherein said tank comprises at least five substantially flat plastic panels.
14. A septic tank according to claim 4, wherein said tank comprises at least five substantially flat plastic panels.
15. A septic tank according to claim 5, wherein said tank comprises at least five substantially flat plastic panels.
16. A septic tank according to claim 6, wherein said tank comprises at least five substantially flat plastic panels.
17. A septic tank according to claim 7, wherein said tank comprises at least five substantially flat plastic panels.
18. A septic tank according to claim 8, wherein said tank comprises at least five substantially flat plastic panels.
19. A septic tank according to claim 9, wherein said tank comprises at least five substantially flat plastic panels.
20. A septic tank according to claim 10, wherein said tank comprises at least five substantially flat plastic panels.
21. A septic tank according to claim 11, wherein said tank comprises at least five substantially flat plastic panels.
22. A septic tank according to claim 12, wherein said tank comprises at least five substantially flat plastic panels.
23. A septic tank according to claim 3, wherein said tank comprises at least six substantially flat plastic panels.
24. A septic tank according to claim 4, wherein said tank comprises at least six substantially flat plastic panels.
25. A septic tank according to claim 5, wherein said tank comprises at least six substantially flat plastic panels.
26. A septic tank according to claim 6, wherein said tank comprises at least six substantially flat plastic panels.
27. A septic tank according to claim 7, wherein said tank comprises at least six substantially flat plastic panels.
28. A septic tank according to claim 8, wherein said tank comprises at least six substantially flat plastic panels.
29. A septic tank according to claim 9, wherein said tank comprises at least six substantially flat plastic panels.
30. A septic tank according to claim 10, wherein said tank comprises at least six substantially flat plastic panels.
31. A septic tank according to claim 11, wherein said tank comprises at least six substantially flat plastic panels.
32. A septic tank according to claim 12, wherein said tank comprises at least six substantially flat plastic panels.
33. A septic tank according to claim 23, wherein said tank comprises
- a substantially flat plastic bottom panel;
- a substantially flat plastic lid panel;
- two substantially flat plastic side panels; and
- two substantially flat plastic end panels, one of said end panels having a tank flow inlet and the other of said end panels having a tank flow outlet.
34. A septic tank according to claim 33, wherein said lid panel has at least one opening therein, and further comprising a hatch cover corresponding to each said opening in said lid panel.
35. A septic tank according to claim 33, further comprising a baffle, and wherein said baffle divides the interior of the tank into an inlet compartment and an outlet compartment.
36. A septic tank according to claim 35, wherein said lid panel has at least one opening therein, and further comprising a hatch cover corresponding to each said opening in said lid panel.
37. A septic tank according to claim 36, wherein said lid panel comprises at least one lid opening above said inlet compartment and at least one lid opening above said outlet compartment.
38. A septic tank according to claim 36, wherein the means for connecting comprises a plastic double-channel angle connector bracket; said double-channel angle connection bracket comprising: a deep panel receiving channel, defined by a first external panel retaining wall and a first internal panel retaining wall; and a shallow panel receiving channel, angularly connected to said deep panel receiving channel, and defined by a second external panel retaining wall and a second internal panel retaining wall.
39. A septic tank according to claim 37, wherein the means for connecting comprises a plastic double-channel angle connector bracket; said double-channel angle connection bracket comprising: a deep panel receiving channel, defined by a first external panel retaining wall and a first internal panel retaining wall; and a shallow panel receiving channel, angularly connected to said deep panel receiving channel, and defined by a second external panel retaining wall and a second internal panel retaining wall.
40. A septic tank according to claim 36, further comprising at least one plastic internal structural support member selected from the group consisting of a vertical structure support, a horizontal structural support extending between side panels, and a horizontal structural support extending between said baffle and an end panel.
41. A septic tank according to claim 37, further comprising at least one plastic internal structural support member selected from the group consisting of a vertical structure support, a horizontal structural support extending between side panels, and a horizontal structural support extending between said baffle and an end panel.
42. A septic tank according to claim 48, further comprising at least one plastic internal structural support member selected from the group consisting of a vertical structure support, a horizontal structural support extending between side panels, and a horizontal structural support extending between said baffle and an end panel.
43. A septic tank according to claim 39, further comprising at least one plastic internal structural support member selected from the group consisting of vertical structure support, a horizontal structural support extending between side panels, and a horizontal structural support extending between said baffle and an end panel.
44. A septic tank according to claim 40, wherein said at least one plastic internal structural support member comprises a polyvinylchloride pipe.
45. A septic tank according to claim 41, wherein said at least one plastic internal structural support member comprises a polyvinylchloride pipe.
46. A septic tank according to claim 42, wherein said at least one plastic internal structural support member comprises a polyvinylchloride pipe.
47. A septic tank according to claim 43, wherein said at least one plastic internal structural support member comprises a polyvinylchloride pipe.
48. A septic tank kit comprising:
- at least four substantially flat plastic panels, one of said panels comprising a tank flow inlet and one other of said panels comprising a tank flow outlet; and
- instructions for assembling said panels into a septic tank.
49. A septic tank kit according to claim 48, further comprising means for connecting said panels to one another.
50. A septic tank kit of claim 49, wherein said means for connecting comprises a plurality of angle connection brackets.
51. A septic tank kit of claim 40, wherein said angle connection brackets are double-channel angle connection brackets.
52. A septic tank kit of claim 49, wherein said means for connecting comprises a plurality of fasteners.
53. A septic tank kit of claim 52, wherein said fasteners comprise stainless steel screws.
54. A septic tank kit of claim 48, wherein said kit comprises:
- a substantially flat plastic bottom panel;
- a substantially flat plastic lid panel;
- two substantially flat plastic side panels; and
- two substantially flat plastic end panels, one of said end panels having a tank flow inlet and the other of said end panels having a tank flow outlet.
55. A septic tank kit of claim 54, wherein said kit further comprises a plurality of angle connection brackets.
56. A septic tank kit of claim 55, wherein said angle connection brackets are double-channel angle connection brackets.
57. A septic tank kit of claim 56, wherein said double-channel angle connection brackets are plastic.
58. A septic tank kit of claim 54, wherein said lid panel has at least one opening therein.
59. A septic tank kit of claim 58, further comprising at least one hatch cover corresponding to each opening in said lid panel.
60. A method of providing a septic tank, comprising the steps of:
- obtaining a septic tank kit which comprises at least four substantially flat panels, one of said panels comprising a tank flow inlet and one other of said panels comprising a tank flow outlet; the kit further comprising instructions for assembling the panels into a septic tank; and
- assembling the contents of said kit into a septic tank.
61. The method of claim 60, wherein the septic tank kit further comprises means for connecting the panels one to another.
62. The method of claim 61, wherein the means for connecting comprises a plurality of angle connection brackets.
63. The method of claim 62, wherein the angle connection brackets are double-channel angle connection brackets.
64. The method of claim 61, wherein the means for connecting comprises a plurality of fasteners.
65. The method of claim 64, wherein the fasteners comprise stainless steel screws.
66. The method of claim 60, wherein the kit comprises:
- a substantially flat plastic bottom panel;
- a substantially flat plastic lid panel;
- two substantially flat plastic side panels; and
- two substantially flat plastic end panels, one of said end panels having a tank flow inlet and the other of said end panels having a tank flow outlet.
67. The method of claim 66, wherein the septic tank kit further comprises a plurality of angle connection brackets.
68. The method of claim 67, wherein the angle connection brackets are double-channel angle connection brackets.
69. The method of claim 68, wherein the double-channel angle connection brackets are plastic.
70. The method of claim 66, wherein the lid panel has at least one opening therein.
71. The method of claim 70, wherein the kit further comprises at least one hatch cover corresponding to each opening in the lid panel.
72. the method of claim 64, wherein the septic tank kit further comprises a plurality of angle connection brackets.
73. The method of claim 72, wherein the angle connection brackets are double-channel angle connection brackets.
74. The method of claim 73, wherein the double-channel angle connection brackets are plastic.
Type: Application
Filed: Apr 10, 2006
Publication Date: Oct 26, 2006
Inventor: Harley Pattee (Orlando, FL)
Application Number: 11/401,085
International Classification: B01D 21/00 (20060101);