Pipe joints or couplings – Packed – Sleeve
Patent
1990-10-26
1991-12-17
Arola, Dave W.
Pipe joints or couplings
Packed
Sleeve
285419, 285903, 285173, 285423, 285915, F16L 2102
Patent
active
050729721
ABSTRACT:
A coupling device which, as a coupler, provides the necessary strength for coupling deep trench installations of corrugated polyethylene drainage pipes without hanging up during feeding through a trenching tool and also allows the joining of the corrugated polyethylene pipes with various other standard pipe materials inclusive of acrylonitrile butadiene styrene and polyvinyl chloride, by the use of standard marketplace glues, solvents and adhesives. The two halves of the coupling device, when used as a coupler, are placed around two abutted ends of adjacent drainage pipe sections, allowing for three corrugations of each of the two corrugated drainage pipe sections to be surrounded and interlocked with radially inwardly projecting ribs of the coupling device. When used as a coupler, the coupling sections are held in place by a band or tape. When the coupling device is used as an adapter, the radially inwardly projecting ribs of the coupling halves surround and engage six corrugations of an end of a corrugated drainage pipe. The smooth cylindrical exterior surface of the coupling device is then fitted within a smooth interior wall of a PVC header, pipe, pump section or discharge pipe. The coupling device used as an adapter is held within PVC pipe by glues, solvents and/or adhesives.
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Arola Dave W.
Bordas Carol I.
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