Abstract: A pipe joint includes a first pipe and a second pipe. The first pope has a first annular flange at one end, the first annular flange including a first end face. The second pipe has a second annular flange at one end, the second annular flange including a second end face. The first annular flange is mated to the second annular flange, with the first end face and the second end face facing each other and pressing at least one seal member therebetween. A plurality of axial retaining members are disposed around a perimeter of the mated first and second annular flanges to hold the pipe joint together.

Abstract: A corrugated metal vent pipe includes a helically corrugated pipe structure formed by helical winding of a corrugated metal strip, wherein the helically corrugated pipe structure has a diameter of between 15 inches and 36 inches and a plurality of vent openings distributed thereon. A first pipe end treatment is located on a first end of the helically corrugated pipe structure, and a second pipe end treatment is located on a second end of the helically corrugated pipe structure.

Abstract: A pipe joint includes a first pipe and a second pipe. The first pope has a first annular flange at one end, the first annular flange including a first end face. The second pipe has a second annular flange at one end, the second annular flange including a second end face. The first annular flange is mated to the second annular flange, with the first end face and the second end face facing each other and pressing at least one seal member therebetween. A plurality of axial retaining members are disposed around a perimeter of the mated first and second annular flanges to hold the pipe joint together.

Abstract: A corrugated metal vent pipe includes a helically corrugated pipe structure formed by helical winding of a corrugated metal strip, wherein the helically corrugated pipe structure has a diameter of between 15 inches and 36 inches and a plurality of vent openings distributed thereon. A first pipe end treatment is located on a first end of the helically corrugated pipe structure, and a second pipe end treatment is located on a second end of the helically corrugated pipe structure.

Abstract: A tank assembly having an elongated plastic tubular pipe structure and at least one end wall attached to the plastic tubular pipe structure and sized to cover a cross-sectional area defined by the plastic tubular pipe structure. The end wall is a composite unit including a first plastic sheet member having an edge portion and a second plastic sheet member bonded with the edge portion of the first plastic sheet member. The first plastic sheet member is located inward of the second plastic sheet member, the second plastic sheet member having a body portion with an outwardly domed shape to define an internal space between the body portion and a body portion of the first plastic sheet member. A structural foam is disposed in the internal space to provide continuity between the first plastic sheet member and the second plastic sheet member.

Abstract: A pipe production system includes a plurality of platform segments that are coupled together at a construction site to form a work platform. A helical pipe production system is mounted on the work platform. The work platform includes an integrated drive system that enables the platform to be moved around the terrain of the construction site so that pipe can be produced in-line with an intended or desire pipe laying path.

Abstract: A pipe manufacturing system and method for producing helically corrugated metal pipe is provided. The system and method utilize controlled profile formation.

Abstract: A pipe manufacturing system and method for producing helically corrugated metal pipe is provided. The system and method utilize controlled profile formation.

Abstract: A pipe manufacturing system and method for producing helically corrugated metal pipe is provided. The system and method utilize controlled profile formation.

Abstract: A pipe manufacturing system and method for producing helically corrugated metal pipe is provided. The system and method utilize controlled profile formation.