Title:
A COUPLIG
Document Type and Number:
WIPO Patent Application WO2003072987
Kind Code:
B1
Abstract:
A coupling is provided preferably for a vortex valve for use on an outlet pipe in a sewerage system. The coupling comprises an outer component for insertion into a bore of a pipe (62), and an inner component (26) which is inserted into the outer component, ramp means being provided between the two components, whereby the outer component is expanded to seal against the bore when the inner component (26) is inserted into the outer component so as to engage the second ramp portion. The ramp means comprises first and second portions (28, 30) of different inclinations. The vortex valve has a circumferential inlet (11) which is adjustable.
Inventors:
ANDOH ROBERT YAW GYAMFI (GB)
LE-CORNU JEREMY PAUL (GB)
FARAM MICHAEL GUY (GB)
LE-CORNU JEREMY PAUL (GB)
FARAM MICHAEL GUY (GB)
Application Number:
PCT/GB2003/000565
Publication Date:
November 27, 2003
Filing Date:
February 07, 2003
Export Citation:
Assignee:
HYDRO INT PLC (GB)
ANDOH ROBERT YAW GYAMFI (GB)
LE-CORNU JEREMY PAUL (GB)
FARAM MICHAEL GUY (GB)
ANDOH ROBERT YAW GYAMFI (GB)
LE-CORNU JEREMY PAUL (GB)
FARAM MICHAEL GUY (GB)
International Classes:
F16L37/133; (IPC1-7): F16L37/133; F15C1/16
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