Device for connecting conduit to a manhole or the like

Details Device for connecting conduit to a manhole or the like Device for connecting conduit to a manhole or the like

1975-01-27

1977-04-26

Kundrat, Andrew V.

Pipe joints or couplings

Frangible element

285158, 285137R, 285423, E04C 139

Patent

active

040197603

ABSTRACT:
A device is disclosed which is suitable for connecting a multiple bore conduit, buried in the ground, to a manhole having a vertical wall. An adapter is embedded in the manhole wall and has outwardly directed ribs to prevent movement of the adapter perpendicularly to the manhole wall. The conduit has a rib, and a coupling sleeve is positioned about the rib and is juxtaposed to the outside surface of the conduit along an end segment of the conduit, with a gasket seal such as an O-ring being disposed between the coupling sleeve and conduit to create a seal therebetween. An adhesive is applied to an end segment of the outer surface of the coupling sleeve, and the conduit and coupling sleeve are inserted into an end portion of the adapter. The adhesive causes the coupling sleeve to be bonded to the adapter, with a seal being created therebetween, whereby the conduit is mechanically attached to the coupling sleeve which is secured to the adapter, and a seal is created between the conduit and adapter. Stop means are provided on the adapter to limit the insertion of the conduit and coupling sleeve into the adapter.

REFERENCES:
patent: 2776151 (1957-01-01), Harkenrider
patent: 3543457 (1970-12-01), Budlong
patent: 3731448 (1973-05-01), Leo
patent: 3759280 (1973-09-01), Swanson
patent: 3764151 (1973-10-01), Elder
patent: 3792878 (1974-02-01), Freeman

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