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| Number | Title | Issue Date |
| 7008144 | Sediment control A sediment control roll includes a threshold member having large apertures therethrough, a hollow sediment collection chamber, and an outflow filter having small apertures therethrough. The sediment control roll can be used to collect sediment in runoff from a const... | 03/07/2006 |
| 7008138 | Faceted end cap for leaching chamber A molded thermoplastic domed end cap, for attachment to the end of an arch shape cross section leaching chamber or stormwater chamber, has a multiplicity of buttresses, to provide facet surfaces where pipe connections may be made. The essentially planar surface port... | 03/07/2006 |
| 6994490 | Stormwater receiving device and assembly A sediment accumulating device for use as an accessory disposed below a groundwater receiving chamber engulfed in granular backfill material has a compartment bounded by sidewall structure elongated upon a vertical axis between upper and lower extremities. The upper... | 02/07/2006 |
| 6941972 | Corrugated pipe A corrugation has a radially inner wall circumferentially surrounding an axis. The inner wall defines an inner cavity configured to conduct a liquid axially through the inner cavity. A radially outer wall of the corrugation overlies the inner wall. The outer wall ad... | 09/13/2005 |
| 6926037 | Collapse tolerant flexible pipe and method of manufacturing same A collapse tolerant flexible pipe and method of manufacturing same according to which an inner tubular layer is provided within an outer tubular layer in a coaxial relationship thereto. The inner layer maintains the maximum allowable strain on the outer layer below ... | 08/09/2005 |
| 6905286 | Porous pipe and apparatus and method of producing the same A porous pipe having an excellent absorbing and draining function, a producing apparatus capable of producing a porous pipe at high speed and low cost, and a method of producing a porous pipe are provided. The porous pipe is a pipe formed by spirally winding a tape.... | 06/14/2005 |
| 6854925 | Storm water reservoir with low drag A system using pre-molded polyethylene galleries, utilized for septic or storm water applications, to facilitate rapid and even distribution of effluent and particles across the gallery installation when utilized as a septic system, or minimizes the resistance to st... | 02/15/2005 |
| 6846130 | Method and apparatus for enhancement of prefabricated earth drains The effectiveness of a prefabricated earth drain installed in a generally vertical manner in soil is improved for enhancing the expelling of pore water from the soil to the surface. The soil surrounding the earth drain is hydraulically fractured either while the dra... | 01/25/2005 |
| 6802668 | Subterranean drainage system A subterranean drain system that includes hollow dimples that extend perpendicularly from a drain board. The system also includes a connector that typically allows multiple boards to be connected together, or to connect to other elements. ... | 10/12/2004 |
| 6719490 | Stormwater receiving assembly A stormwater receiving assembly for processing stormwater containing suspended particulate matter includes a dispensing chamber and an underlying accumulating accessory. The dispensing chamber is fabricated of thin-walled plastic contoured as a corrugated wall horiz... | 04/13/2004 |
| 6702517 | Pipe assembly for collecting surface water runoff and associated methods The present invention includes a pipe assembly for collecting water runoff. The pipe assembly includes a plurality of elongated primary pipes disposed in adjacent contact along their lengths. Each pair of adjacent elongated primary pipes define upper and ... | 03/09/2004 |
| 6698975 | Coupling structure for a leaching chamber A leaching chamber is configured to be coupled in series to another such leaching chamber located forward of the chamber and to yet another such leaching chamber located rearward of said leaching chamber. The leaching chamber comprises a conduit extending... | 03/02/2004 |
| 6691472 | Foundation wall protector A foundation protector for a foundation wall prevents moisture being retained in the foundation wall and also provides drainage for surface water so that water does not rest against the surface of the foundation wall. The foundation protector has a smooth... | 02/17/2004 |
| 6692186 | Apparatus and method for transporting water An apparatus and method for lining ditches is provided. The apparatus and method for lining ditches, according to the present invention, includes a plurality of substantially corrugated liner sections, preferably made of a thermoplastic material such as p... | 02/17/2004 |
| 6679653 | Leaching or drainage gallery with increased surface area A gallery for guiding liquid through a leaching or drain field and allowing liquid to seep into adjacent ground is provided. The gallery includes an elongated main body portion having an undulating wall defined by a plurality of laterally spaced apart rib... | 01/20/2004 |
| 6612778 | System and method for preventing bluff erosion A system is provided for preventing erosion of a bluff or hillside having a face extending between a toe at a bottom thereof and a crest at a top surface thereof, and a failure shear plane. The bluff or hillside is subject to excess water accumulation con... | 09/02/2003 |
| 6612777 | Stormwater dispensing chamber A chamber of elongated arch-shaped configuration for receiving and dispersing stormwater underground is provided with side portals which receive horizontally disposed infeed conduits that deliver stormwater to the chamber. The positioning and function of ... | 09/02/2003 |
| 6602023 | Leaching chamber endplate The leaching chamber endplate including snap connectors, pipe stops, pipe scores, drill guide(s), and a barrier that facilitates enhanced engagement between the endplate and leaching chamber. This endplate is preferably formed using a blow molding process... | 08/05/2003 |
| 6599611 | Method of making a composite structure A method of making a composite structure from a support structure or a plurality of support structures laid side-by-side on a base, is disclosed. The support structure is formed from frameworks each comprising a tube of a flexible material divided by divi... | 07/29/2003 |
| 6592293 | Adjustable angle coupler for leaching chamber systems An adjustable coupler interconnects leaching chambers to create a serpentine pathway for a leaching field. The coupler can comprise a mating feature, which can be used to mate the coupler between a first leaching chamber and a second leaching chamber, and... | 07/15/2003 |
| 6527477 | Erosion control rolls An erosion control device is described. A walled elongated core member is disclosed having a first open end, a second end, an interior space and one or more openings in the wall communicating the interior space with the exterior of the core member. An out... | 03/04/2003 |
| 6461078 | Plastic sewage pipe Systems for leaching liquid waste, particularly waste water. More particularly a cylindrical conduit or pipe for use in leaching systems. The pipe further has axially directed cuts or apertures in conduit/pipe valleys, has ridges, channels and grooves ove... | 10/08/2002 |
| 6361248 | Stormwater dispensing chamber An elongated plastic chamber utilized for disposal of stormwater has a corrugated wall structure having successive peaks and valleys. The peaks and valleys are connected by upstream and downstream web panels. A series of apertures is disposed in the upstr... | 03/26/2002 |
| 6336770 | Drainfield pipe installation device A drainfield pipe having a rib radially extending from its wall is supported by a device which comprises opposing elongate anchor members having inside edges tapering away from a clamping end for sliding the drainfield pipe between the anchor members when... | 01/08/2002 |
| 6322288 | Storm or waste water chamber featuring strain relief notches for flexing and contouring the chamber A chamber is provided that is flexible and able to be contoured along the entire length of the chamber when deployed on rock and earth formations with variable gradings. The chamber has a multiplicity of stress relief notches (also known as flex ports) fo... | 11/27/2001 |
| 6312190 | Method and apparatus for enhancement of prefabricated composite vertical drains A vertical prefabricated composite drain for improving conventional consolidated acceleration of saturated soils. The composite drain is installed in a generally vertical manner in water saturated soil to be treated for expelling pore water from the soil ... | 11/06/2001 |
| 6273640 | Irrigation ditch liner An irrigation ditch liner system comprises a plurality of liner sections including at least one straight conduit section and one corrugated conduit section, each conduit having a semi-cylindrical body portion defining a conduit interior diameter, vertical... | 08/14/2001 |
| 6273641 | Protective device A protective device having a shell structure and being shaped from a plate-shaped material, in particular but not exclusively, adapted for covering of a sub sea structure, such as at least one pipe line (21, 22), a Christmas tree or parts of such construc... | 08/14/2001 |
| 6129482 | Reversible interlocking field drain panel A first molded polymer field drain panel is made from a moldable polymer sheet material and has an elongated chamber with an arched-shape, a first end, a second end and transverse strengthening ribs protruding outwardly therebetween. The elongated chamber... | 10/10/2000 |
| 6120209 | Method of installing drainfield pipe A drainfield pipe having a rib radially extending from its wall is supported by a device which includes a pair of elongated anchor members generally parallel to each other and separated for receiving the drainfield pipe therebetween and suspending the pip... | 09/19/2000 |
| 6076992 | Underdrain pipe An underdrain pipe has a pipe wall in which wall portions rectangular in section and wall portions circular in section are disposed alternately in a longitudinal direction of the pipe, in which a number of water collecting small holes are formed in portio... | 06/20/2000 |
| 5954451 | Multi-layer material for processing septic efficient and waste water and method of using the same A device/apparatus for using a multilayer fabric of varying deniers for the processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the... | 09/21/1999 |
| 5921711 | Subsurface fluid distribution apparatus and method A subsurface fluid distribution system for sewage effluent and irrigation water utilizes one or more arrays of serially connected leaching chambers. Each leaching chamber is a double-walled construction of arch-shaped cross section with an open bottom and... | 07/13/1999 |
| 5890838 | Storm water dispensing system having multiple arches In a system for dispersing stormwaters beneath the earth surface, a pair of arch shaped corrugated molded plastic chambers lie parallel each to the other upon a bed of gravel and are covered with soil. A bridge cover spans the space between the sidewalls ... | 04/06/1999 |
| 5829916 | Drainfield pipe A drainfield pipe having a rib radially extending from its wall is supported by a device which includes a pair of elongated anchor members generally parallel to each other and separated for receiving the drainfield pipe therebetween and suspending the pip... | 11/03/1998 |
| 5820296 | Prefabricated vertical earth drain and method of making the same A prefabricated composite vertical earth drain which has an elongated corrugated flexible plastic core sheet with horizontal corrugations that provide continuous longitudinally extending drain channels. Desired longitudinally extending surfaces of these d... | 10/13/1998 |
| 5669733 | Angled adapter for a leaching chamber system A leaching system (10) includes arched leaching chamber sections (12) and an angled adapter (18) connected adjacent chamber sections at a 22.5° angle. The adapter includes a first portion (122) having sidewalls (140, 142) spanned by a vaulted portion (14... | 09/23/1997 |
| 5588778 | Leaching chamber with angled end A leaching chamber for gathering and dispersing liquids in soil has an end with an angled terminus, so that chambers may be connected as a string in a rough curve. An angled chamber end is severable from the chamber at an indicant, to convert the chamber ... | 12/31/1996 |
| 5556231 | Severable leaching chamber with end cap A leaching chamber (10) includes first and second side walls (46) which have louver sections. The side walls are connected by vaulted portion (48) to define a chamber potion (12) terminating at a first end (16) and a second end (18). Male and female coupl... | 09/17/1996 |
| 5511903 | Leaching chamber with perforated web sidewall A molded plastic leaching chamber, for dispersing or collecting liquids in soil, has a corrugated arch shape. The sidewall of the chamber is comprised of alternating slot-perforated peaks and valleys connected by slot-perforated deep webs. The unit surfac... | 04/30/1996 |
