Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to cause rotational flow of fluid
Reexamination Certificate
2007-07-25
2010-10-19
Rivell, John (Department: 3753)
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to cause rotational flow of fluid
C251S126000
Reexamination Certificate
active
07814935
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, and an inner component 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 is inserted into the outer component so as to engage the second ramp portion. The ramp means comprise first and second portions of different inclinations. The vortex valve has a circumferential inlet which is adjustable.
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Andoh Robert Y. G.
Faram Michael G.
Le-Cornu Jeremy P.
Hydro International PLC
Jackson Douglas E.
Petry Marvin
Rivell John
Rost Andrew J
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