Abstract: A wear shoe for mounting to a flight of a sludge collector. The wear shoe snaps into a surface of the flight at a desired location and is held in place with no additional fasteners or hardware. The wear shoe is able to be utilized with any channel-type flight configuration.

Abstract: There is provided a guide roller assembly for use in a wastewater treatment facility comprising a pin and a guide roller, wherein the guide roller directly surrounds the pin and the pin rotates within the roller. There is also provided a guide roller assembly for use in a cog rake bar screen comprising a pin and a guide roller, the guide roller surrounding the pin, wherein the guide roller comprises a low-friction polymeric material and the pin rotates within the guide roller, the guide roller being free to rotate.

Abstract: There is provided a guide track for cog rake bar screens comprising a metallic or nonmetallic guide track. There is also provided a guide track for cog rake bar screens comprising modular sections of guide track being disposed adjacent one another wherein guide rollers are guided within the guide track.

Abstract: There is provided a non-metallic sludge collector chain comprising at least one center block link comprising a first bore at a first end of the center block link and a second bore at a second end of the center block link, at least one insert sidebar comprising a first bore at a first end of the insert sidebar and a second bore at a second end of the insert sidebar, at least one receiving sidebar comprising a first bore at a first end of the receiving sidebar and a second bore at a second end of the receiving sidebar, a pin comprising a first end portion, a second end portion, and a central portion disposed between the first and second end portions, the second end portion having a grooved section, the pin being positioned through the first bore of the insert sidebar, through the first bore of the center block link, and through the first bore the receiving sidebar, and a pin cap comprising a sleeve having a raised ring protuberance thereon, the raised ring protuberance being in snapped-fit relation to the groov

Abstract: There is provided a sprocket for use in a wastewater treatment facility comprising a first portion, a second portion, and at least one fastener which snap locks the first portion to the second portion. There is also provided a sprocket for use in a wastewater treatment facility comprising at least one lightening hole, the sprocket being formed of non-metallic material.

Abstract: The present bearing assembly is for use with a wastewater treatment apparatus which is driven by a drive shaft, e.g., cog rake bar screens, or water treatment apparatus, e.g., paddle wheels in flocculation mixing tanks, and submerged, partially submerged or intermittently submerged in a fluid environment. The bearing assembly includes a tubular member keyed against rotation in a bearing housing with the tubular member bore surfaces engaged against the drive shaft surfaces without rolling elements disposed therebetween thus eliminating the need for lubricators to supply the bearings with grease. Accordingly, the present dry bearing assembly is not subject to failures caused by having the grease in the bearings flushed out by wastewater flows or by submerging of the lubricator.

Abstract: There is provided an a wear strip assembly for use in a waste water treatment facility comprising an anchor plate secured to the bottom of a tank and a wear strip disposed around the anchor plate having a c-shaped cross section. The wear strip may be slid onto the anchor plate. There is also provided a waste water treatment system employing the wear strip assembly. There is further provided a stop plate for use in the wear strip assembly.

Abstract: There is provided an a wear strip assembly for use in a waste water treatment facility comprising an anchor plate secured to the bottom of a tank and a wear strip disposed around the anchor plate having a c-shaped cross section. The wear strip may be slid onto the anchor plate. There is also provided a waste water treatment system employing the wear strip assembly.

Abstract: A sludge collector mechanism for scraping settled sludge off the bottom of a settling tank is disclosed wherein a sludge collector flight comprises a high strength "H"-shaped cross section and inwardly projecting lips for engaging the outwardly projecting clips of a wear shoe to thereby secure the wear shoe to the sludge collector flight.

Abstract: In a sludge collector mechanism having a sludge flight for scraping settled sludge off the bottom of a settling tank and skimming floating waste from the surface of the water contained in the tank, a support rail assembly for maintaining the flight on a level generally even with the surface of the water, the support rail assembly comprising a non-metallic longitudinal track on which the end of the flight is slideably supported and at least one non-metallic mounting bracket for securing the track relative to the sidewall of the settling tank. The track comprises a cross section having a substantially horizontal rail portion, a transverse stem extending downward from the underside of the rail portion, and two opposing fingers, one extending upward from the bottom of the stem and one extending downward from the underside of the rail portion.

Abstract: A sludge collector mechanism for scraping settled sludge off the bottom of a settling tank is disclosed wherein a sludge collector flight comprises a high strength "H"-shaped cross section and inwardly projecting lips for engaging the outwardly projecting clips of a wear shoe to thereby secure the wear shoe to the sludge collector flight.