Patent ID: 11959577
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 5:
6. A method for replacing a valve in a pipe, comprising:
placing a housing in fluid-tight engagement with the pipe on a right side and left side of the valve;
cutting the pipe on the right side and left side of the valve, thereby creating a right side opening and a left side opening in the pipe;
removing the valve through the housing;
advancing a replacement valve assembly into the housing, wherein a cut-covering assembly is disposed within each pipe end of the replacement valve assembly, each cut-covering assembly comprising a cylindrical, elastomeric seal, a spring tube within the seal and a cross brace in the interior of the spring tube, the valve assembly further comprising a rotatable valve between the cut-covering assemblies;
placing the pipe ends of the valve assembly into alignment with the right side opening and the left side opening of the pipe; and
rotating the valve between a first position and a second position, wherein a first medial edge of the valve contacts a cross brace of a right side cut-covering assembly in a right side cylinder of the valve assembly and urges a right side end of the right side cut-covering assembly out of the right side cylinder, and simultaneously a second medial edge of the valve contacts a cross brace of a left side cut-covering assembly in a left side cylinder of the valve assembly and urges a left side end of the left side cut-covering assembly out of the left side cylinder, thereby pushing the cut-covering assemblies outwardly through pipe ends and into the cut ends of the pipe and placing the valve assembly into fluid-tight engagement with the cut ends of the pipe.