Abstract: A disclosed pipe scuffing device includes a frame and a shaft coupled to the frame and configured to rotate about a central axis. The pipe scuffing device also includes a drive motor configured to drive the rotation of the shaft. The device further includes one or more abrasive wheels disposed about the shaft and having an abrasive outer surface configured to engage an outer surface of a pipe when rotating with the shaft to remove one or more contaminants from the outer surface of the pipe.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with a reinforcing stiffener. The corrugated pipe may include an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. In some embodiments, a stiffener may be positioned within the corrugation valleys. In other embodiments, a stiffener may be positioned within the corrugation crests.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with a reinforcing stiffener. The corrugated pipe may include an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. In some embodiments, a stiffener may be positioned within the corrugation valleys. In other embodiments, a stiffener may be positioned within the corrugation crests.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Abstract: Embodiments of the present disclosure include a coupling mechanism. The coupling mechanism may include a connection section including a first opening, an inner flange, and an outer flange, wherein the connection section is configured to connect to a first pipe, a sleeve portion including a second opening and configured to connect to a second pipe, and a channel extending through the coupling mechanism between the first opening and the second opening, wherein the first opening is angled relative to the second opening, wherein the inner flange includes a first end and a second end, wherein the first end of the inner flange includes a width larger than a width of the second end of the inner flange.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Abstract: Coupling mechanisms for connecting a plurality of pipes are provided. The coupling mechanisms may include a first portion including a first wall having a substantially arcuate cross-sectional shape and defining a first channel, a second portion including a second wall having a substantially arcuate cross-sectional shape and defining a second channel, and a hinge portion connecting together the first portion and the second portion. The first portion and second portion may be configured to pivot about the hinge portion. In an open configuration of a coupling mechanism, the first portion may be laterally adjacent to the second portion. In a closed configuration of a coupling mechanism, the first portion and the second portion may be folded together about the hinge portion to form a first lumen encased by the first wall and the second wall.

Abstract: Embodiments of the present disclosure include a coupling mechanism. The coupling mechanism may include a connection section including a first opening, an inner flange, and an outer flange, wherein the connection section is configured to connect to a first pipe, a sleeve portion including a second opening and configured to connect to a second pipe, and a channel extending through the coupling mechanism between the first opening and the second opening, wherein the first opening is angled relative to the second opening, wherein the inner flange includes a first end and a second end, wherein the first end of the inner flange includes a width larger than a width of the second end of the inner flange.

Abstract: A casing defines a cavity having a top, a bottom, and axially front and rear ends. The casing is configured to conduct a mixture of a liquid and a contaminant through the cavity from the front end to the rear end. A coalescer, located in the cavity, includes an inclined stack of corrugated plates extending rearward and upward. Each plate has corrugations extending rearward and upward.

Abstract: A water control gate assembled from hollow core boards of extruded rigid plastic material with soft plastic material gaskets chemically bonded thereto by molecular cross-linking. Side channel members that receive end portions of the boards are extruded of rigid plastic material with soft plastic gaskets chemically bonded thereto by molecular cross-linking. The gaskets seal against the outer surfaces of the board end portions. The gaskets are molecularly cross-linked with the board or side channel plastic material so that they will not separate therefrom. Cross-linking is achieved by way of coextrusion or by locally reheating surfaces of the board or channel member downstream from their extrusion die to a temperature that promotes molecular cross-linking with a gasket material as the gasket is extruded onto the reheated area.

Abstract: A casing surrounds an axis to define a cavity that has axially front and rear ends. The casing is configured to conduct a mixture of a liquid and a contaminant through the cavity from the front end to the rear end. A porous basket structure, located within the cavity, for holding coalescing media has a top opening. The basket structure is configured for the liquid to flow through the top opening into the basket structure, through the coalescing media, and outward through of the basket structure in a vertical direction and a horizontal direction. A constraining structure, located in the cavity, constrains the liquid flowing through the cavity from the front end to the rear end to flow through the top opening into the basket structure when the liquid is below a predetermined level.