F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
277/5, 285/58, 2
F16L 21/02 (2006.01) F16L 17/04 (2006.01) F16L 25/00 (2006.01)
Patent
CA 2011012
BIDIRECTIONAL CORRUGATED PIPE-RIB SEAL ABSTRACT A sealing ring made of an elastomeric readily flowable incompressible material utilized for perfecting a seal between the interior surface of a coupling sleeve and the crest of a rib of a section of corrugated plastic pipe, the sealing ring having a generally flat annular body which in its free form has its major cross-sectional dimension extending radially and being characterized by a series of axially extending ribs, one of which is located on the inner diametrical surface of the ring for securing the ring within the valley between adjacent ribs on the corrugated pipe, a second rib located on the outer circum- ferential surface of the ring for primarily sealing bet- ween the coupling sleeve and the proximal area of the crest of a rib of the corrugated pipe against infiltration of external fluids and solids, and an intermediate rib for primarily sealing between the coupling sleeve and the distal area of the crest of a rib of the corrugated pipe against the escape of fluids and solids flowing therethrough.
Bonnema Eldon G.
Roe Stephan L.
Seehausen John L.
Prinsco Inc.
Ridout & Maybee Llp
LandOfFree
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