Abstract: A coupling for joining pipe ends of opposing first and second pipes in end-to-end relation is disclosed. The coupling comprises a tubular member having opposing first and second ends and an intermediate extent defining an internal diameter. The first end receives the first pipe and the second end receives the second pipe. A pipe retainer secures each respective pipe end within the tubular member. The pipe retainer may comprise a first pipe clamp secured to the first pipe and a second pipe clamp secured to the second pipe. A clamp retainer bar has opposing ends with a first end secured to the first pipe clamp and a second end secured to the second pipe clamp. Alternatively, the pipe retainer may comprise compressive members threaded within threaded holes in the tubular member. The compressive members exert a compressional force upon the pipes to secure the pipes within the tubular member.

Abstract: Embodiments of the invention provide an annular pipe insert and pipe assembly system that includes a first pipe segment having a cut end with a face end coupled to a second pipe segment with an insert. The insert includes an annular main body portion including a rear surface and an opposed front surface extending from an inner diameter of the insert. The front surface can include a beveled portion coupled to a top surface portion that extends from the inner diameter of the insert to the beveled portion. The assembly system also includes an inner flange portion coupled to the front surface and extending away from the beveled portion, and an outer flange portion coupled to the inner flange portion. The cut end is inserted into the second pipe segment whereby the face end of the first pipe segment is coupled to the rear surface of the main body portion.