Pipe joints or couplings – With fluid pressure seal – Flexible lip
Patent
1986-07-15
1987-05-12
Arola, Dave W.
Pipe joints or couplings
With fluid pressure seal
Flexible lip
285340, 285373, F16L 1704
Patent
active
046644229
ABSTRACT:
A pipe coupling comprising a housing which can be clamped about pipe ends which are to be interconnected possesses radially inwardly flexed end flanges. The housing encloses an inwardly open sealing gasket having a substantially C-shaped axial cross-sectional configuration made from an elastomeric material such as synthetic rubber. Both ends of this sealing gasket are supported upon the inner or confronting jacket surface of a respective truncated cone-shaped clamping ring. These clamping rings are supported in the housing at the region of their outer edge or outer region by means of the end flanges. The inner edge or inner region of these clamping rings is structured to mechanically engage or dig into the surface of the pipe ends during clamping of the housing. The inner edge or inner region of the clamping rings possesses a concave profile in order to reduce, on the one hand, the necessary force required during clamping of the housing for digging the inner edge or inner region into the pipe ends and, on the other hand, to clearly limit the depth to which the inner edge or inner region penetrates into the pipe ends.
REFERENCES:
patent: 1789379 (1931-01-01), Dillon
patent: 2147353 (1939-02-01), Scholtes
patent: 2202492 (1940-05-01), Jacocks
patent: 2341164 (1944-02-01), Shimek
patent: 3877733 (1975-04-01), Straub
Arola Dave W.
Kleeman Werner W.
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