Pipe having an in-line bell

Details Pipe having an in-line bell Pipe having an in-line bell

1999-01-08

2000-10-03

Arola, Dave W.

Pipe joints or couplings

Packed

Carried on cylindrical shank

285 3, 285423, 285903, F16L 1702

Patent

active

061262099

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.

REFERENCES:
patent: 3239254 (1966-03-01), Campbell
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patent: 3926222 (1975-12-01), Shroy et al.
patent: 4141576 (1979-02-01), Lupke et al.
patent: 4149740 (1979-04-01), Hall
patent: 4443031 (1984-04-01), Borsh et al.
patent: 4647074 (1987-03-01), Pate et al.
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patent: 5071173 (1991-12-01), Hegler et al.
patent: 5080405 (1992-01-01), Sasa
patent: 5348051 (1994-09-01), Kallenbach
patent: 5765880 (1998-06-01), Goddard
patent: 5992469 (1999-11-01), Hegler
patent: 5996635 (1999-12-01), Hegler

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