Pipe coupling

Details Pipe coupling Pipe coupling

1992-02-19

1993-07-27

Nicholson, Eric K.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

285337, 285373, 285410, 285910, 24279, 277207A, 277101, F16L 1704

Patent

active

052305376

ABSTRACT:
A pipe coupling comprising a sealing gasket to fit over adjacent ends of pipes to be connected end-to-end and a housing which clamps around the gasket, has the housing in the form of a cast metal or alloy band which substantially encircles the gasket and has at its circumferential ends opposed lugs between which a wedge portion of the gasket extends and which are connected by at least one clamping bolt engaged with retaining means, whereby the lugs can be urged towards one another to contract the band onto the gasket. The lugs grip the wedge portion as the band is contracted and prevent the body of the gasket from bulging outwardly between the lugs. Preferably the band is made of a ductile metal or alloy, e.g. ductile iron, and is slightly oval in its free state so that it assumes a substantially true circular form when fully contracted onto the gasket.

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