Pipe having a water-tight in-line bell

Details Pipe having a water-tight in-line bell Pipe having a water-tight in-line bell

2007-12-11

2007-12-11

Thompson, Kenneth (Department: 3672)

Pipe joints or couplings

Corrugated

C285S374000, C138S173000

Reexamination Certificate

active

10037219

ABSTRACT:
In a corrugated pipe comprising two sections joined by telescopically mating a male end of one section with a female end of the other section, an annular sealing element is fixed to the exterior surface of the male end and disposed to sealingly engage the interior surface of the female end. An annular band of reinforcing material is disposed around the exterior surface of the female end at a position along the longitudinal axis thereof that is in general alignment with the sealing element. The reinforcing material resists loss of sealing engagement between the female end and the sealing element during use of the pipe.

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International Search Report, date Feb. 26, 2003

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