Pipe having an in-line bell
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United States of America Patent
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-
Oct 3, 2000
Grant Date -
N/A
app pub date -
Jan 8, 1999
filing date -
Jan 8, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An in-line bell pipe is provided, formed by joining at least two corrugated sections of pipe having a male portion and a female portion to connect the corrugated sections. Each corrugated section has a plurality of first corrugations having a crest and a valley, with the distance between the crest and valley of the first corrugations being a first distance. The male portion of each corrugated section has at least one second corrugation and one third corrugation, with each second corrugation and each third corrugation having a respective crest and valley and with the distance between the respective crests and valleys being a second distance and a third distance respectively. The second distance and the third distance each are less than the first distance. The crest of the third corrugation also has a recessed area that accommodates a sealing element, with the sealing element being retained the recessed area and the female portion.
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