Pipe joints or couplings – With fluid pressure seal – Independent supply passage
Patent
1977-07-18
1979-08-07
Arola, Dave W.
Pipe joints or couplings
With fluid pressure seal
Independent supply passage
285112, 285184, 285367, F16L 1704
Patent
active
041635710
ABSTRACT:
A pipe coupling is disclosed in which two identical tubular parts, to receive pipe ends, each have a flange at one end thereof and are held together, via their flanges, by a clamping ring which has a radially inwardly facing groove which receives the flanges. Each flange on its side remote from the other flange slopes outwardly from the periphery of the tubular part towards said one end thereof providing a ramp surface engaged by the free edge of a respective one of the two side walls of the inwardly facing groove of the clamping ring so that a circumferential tension in the clamping ring produces a wedging action urging the flanges into engagement with each other. In a variant each of the two tubular parts is angled with respect to its end flange so that by adjusting the tubular parts relative to each other about the common axes of their flanges, the angle between the axes of the main portions of the tubular parts can be adjusted, thus providing a pipe bend of adjustable angle.
REFERENCES:
patent: 1854855 (1932-04-01), Nakashima
patent: 2581047 (1952-01-01), Salmond et al.
Arola Dave W.
Durapipe Limited
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