Pipe connection to manholes and the like

Details Pipe connection to manholes and the like Pipe connection to manholes and the like

1975-03-14

1976-09-28

Callaghan, Thomas F.

Pipe joints or couplings

End to side or plate

Penetrating

29450, 285351, F16L 4100

Patent

active

039827771

ABSTRACT:
A connection is provided between pipe (principally sewer pipe) and the wall of a manhole or like structure, whereby a hole passing through the wall of the manhole is provided with sloped tapers opening toward each side of the wall, through which the pipe is received, with resiliently compressible ring members being provided at each side of the wall, arranged in wedged engagement between the pipe and each tapered portion of the wall, clamping the pipe to the wall. The manhole will principally be of the cylindrical cast concrete type, and the rings will preferably be of the O-ring type. The pipe may be of various constructions. A particularly novel technique is provided for facilitating the connection, whereby forces exerted on the pipe from inside the manhole after a compressible ring has been applied thereto, are maintained while another ring is rolled into position against the tapered exterior surface, and then swaged into place.

REFERENCES:
patent: 2710630 (1955-06-01), Greer
patent: 3339014 (1967-08-01), Oxley
patent: 3345089 (1967-10-01), Stepanich
patent: 3348850 (1967-10-01), Scales
patent: 3815214 (1974-06-01), Kyle
patent: 3874063 (1975-04-01), Skinner et al.

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