Patent ID: 11892115
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. The method of claim 7, wherein the pipe (35) is a prestressed concrete cylinder pipe (PCCP) having a concrete outer layer (5), an interior metal cylinder (7), and wire (1) wound around the metal cylinder, further comprising the steps of:
placing a left side restraining clamp (211) onto a left side (351) of the pipe (35) and a right side restraining clamp (212) onto a right side (352) of the pipe (35), thereby restraining pre-stressed tension wire (1) on a right side and a left side of the pipe (35);
placing a center restraining clamp (3) on the pipe (35) between the left side restraining clamp (211) and the right side restraining clamp (212), thereby restraining pre-stressed tension wire (1) in a center portion of the PCCP pipe (35), wherein the center restraining clamp comprises an upper mounting flange (6) on an upper portion of the clamp;
removing the concrete outer layer (5) and the tension wire (1) in the left medial portion of the pipe (353) and in the right medial portion of the pipe (354), thereby exposing the interior metal cylinder 7 in the left medial portion (353) and the right medial portion (354; and
placing the housing (9) around the center restraining clamp (3) so that a left side opening of the housing surrounds the interior metal cylinder (7) in a left medial portion of the pipe (353) to the left of the center restraining clamp (3) and a right side opening that surrounds the interior metal cylinder (7) in a right medial portion of the pipe (354) to the right of the center restraining clamp (3), wherein the housing is placed in fluid-tight engagement with the pipe.