IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0941605
(2007-11-16)
|
등록번호 |
US-8820800
(2014-09-02)
|
발명자
/ 주소 |
- Sutton, Gerald S.
- Shaffer, William V.
- Goddard, James B.
- Kurdziel, John M.
- Kelley, David J.
- Biesenberger, Jeffrey J.
|
출원인 / 주소 |
- Advanced Drainage Systems, Inc.
|
대리인 / 주소 |
Finnegan Henderson Farabow Garrett & Dunner, L.L.P.
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
156 |
초록
▼
A coupling for multi-wall, corrugated pipe, the pipe including a corrugated wall having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section having disposed at one end a bell portion, the bell portion having a portion of the corrugated wall and an outer wall;
A coupling for multi-wall, corrugated pipe, the pipe including a corrugated wall having a plurality of primary corrugations, is disclosed. The coupling includes a first pipe section having disposed at one end a bell portion, the bell portion having a portion of the corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a portion of the corrugated wall between an inner wall and an outer wall; and a gasket engaged between the corrugated wall of the bell portion and the outer wall of the spigot portion. A multi-wall, corrugated pipe section, and method for assembling a plurality of multi-wall, corrugated pipe sections, are also disclosed.
대표청구항
▼
1. A pipe system comprising: a first pipe including a first inner wall, a first outer wall, and a first corrugated wall, the first pipe having disposed at one end a bell portion, the bell portion including a portion of the first corrugated wall and a portion of the first outer wall;a second pipe inc
1. A pipe system comprising: a first pipe including a first inner wall, a first outer wall, and a first corrugated wall, the first pipe having disposed at one end a bell portion, the bell portion including a portion of the first corrugated wall and a portion of the first outer wall;a second pipe including a second inner wall, a second outer wall, and a second corrugated wall, the second pipe having disposed at one end a spigot portion, the spigot portion including a portion of the second corrugated wall positioned between a portion of the second inner wall and a portion of the second outer wall, wherein the spigot portion is inserted into the bell portion to couple the first pipe and the second pipe; anda gasket contacting the portion of the first corrugated wall of the bell portion and the portion of the second outer wall of the spigot portion. 2. The pipe system of claim 1, wherein: the second corrugated wall includes a plurality of primary corrugations, wherein the spigot portion includes a plurality of spigot corrugations having heights less than heights of the primary corrugations of the second corrugated wall; andthe first corrugated wall includes a plurality of primary corrugations, wherein the bell portion includes a plurality of bell corrugations having heights less than heights of the primary corrugations of the first corrugated wall. 3. The pipe system of claim 2, wherein the portion of the second outer wall of the spigot portion is drawn down onto the spigot corrugations, and the gasket includes protrusions engaged with the bell corrugations, said gasket engaging the portion of the second outer wall of the spigot portion when the spigot portion is inserted into the bell portion. 4. The pipe system of claim 1, wherein, when the spigot portion is inserted into the bell portion, the gasket engages the portion of the second outer wall of the spigot portion. 5. The pipe system of claim 4, wherein the spigot corrugations extend axially over a predetermined length, and the gasket has a sealing surface less than the predetermined length, said sealing surface being configured to engage the portion of the second outer wall of the spigot portion. 6. The pipe system of claim 3, wherein a water-tight interface is formed between a sealing surface of the gasket and the portion of the second outer wall of the spigot portion. 7. The pipe system of claim 2, wherein the portion of the second corrugated wall of the spigot portion further includes an intermediate corrugation disposed between the spigot corrugations and the primary corrugations of the second corrugated wall and having a height greater than the heights of the spigot corrugations and less than the heights of the primary corrugations of the second corrugated wall. 8. The pipe system of claim 7, wherein the portion of the first corrugated wall of the bell portion further includes an end corrugation having a height less than the heights of the bell corrugations, the end corrugation being configured to engage the intermediate corrugation of the spigot portion when the spigot portion is inserted into the bell portion. 9. A pipe system comprising: a first pipe including a spigot portion, wherein the spigot portion includes a first corrugated wall disposed between a first inner wall and a first outer wall;a second pipe including a bell portion, wherein the bell portion includes a second corrugated wall affixed to a second outer wall, wherein the second corrugated wall includes a plurality of corrugation crests and a plurality of corrugation valleys, wherein the spigot portion of the first pipe is inserted into the bell portion of the second pipe; anda gasket retained in at least one corrugation valley of the second corrugated wall. 10. The pipe system of claim 9, wherein the first corrugated wall includes a plurality of primary corrugations having a primary height. 11. The pipe system of claim 10, wherein the first corrugated wall further includes: a plurality of spigot corrugations having heights less than the primary height of the primary corrugations; andan intermediate corrugation having a height greater than the height of the spigot corrugations but less than the primary height of the primary corrugations. 12. The pipe system of claim 11, wherein the first corrugated wall includes two spigot corrugations, said two spigot corrugations extending axially together along a length of the pipe between 4 and 8 inches. 13. The pipe system of claim 12, wherein the first outer wall extends across and is fused to the two spigot corrugations and the primary corrugations. 14. The pipe system of claim 11, wherein the first outer wall is fused to the intermediate corrugation and the spigot corrugations, such that a diameter of the spigot portion measured at the intermediate corrugation is less than a diameter of the spigot portion measured at a primary corrugation and greater than a diameter measured at the spigot corrugations. 15. The pipe system of claim 10, wherein the second corrugated wall includes a plurality of primary corrugations and a plurality of bell corrugations having heights less than heights of the primary corrugations of the second corrugated wall, said plurality of bell corrugations being disposed between an end corrugation and the primary corrugations of the second corrugated wall. 16. The pipe system of claim 15, wherein: the end corrugation extends axially along a length of the second corrugated wall, said end corrugation being longer than each of said plurality of bell corrugations; andwherein, the end corrugation has a height less than a height of each of the plurality of bell corrugations. 17. The pipe system of claim 9, wherein the first outer wall includes a plurality of corrugations having crests and valleys, said first outer wall crests being aligned with crests of the first corrugated wall and said first outer wall valleys being aligned with valleys of the first corrugated wall, and wherein the second outer wall includes a plurality of corrugations having crests and valleys, said second outer wall crests being aligned with the corrugation crests of the second corrugated wall and said second outer wall valleys being aligned with the corrugation valleys of the second corrugated wall. 18. The pipe system of claim 10, wherein the first inner wall extends to a spigot terminus proximate to the spigot corrugations, and the second inner wall extends to an inner wall terminus proximate to a primary corrugation. 19. A method for assembling a pipe system, the method comprising: positioning a first pipe, having disposed at one end a spigot portion, the spigot portion including a first corrugated wall disposed between a first inner wall and a first outer wall;positioning a second pipe, having disposed at one end a bell portion, the bell portion including a second corrugated wall affixed to a second outer wall;engaging a gasket with corrugations in the second corrugated wall; andinserting the spigot portion of the first pipe into the bell portion of the second pipe, such that the first outer wall engages the gasket. 20. The method of claim 19, further comprising: removing a portion of a second inner wall from the second pipe proximate to the bell portion, prior to inserting the spigot portion into the bell portion. 21. The method of claim 19, wherein the second outer wall is circumferentially tapered. 22. The method of claim 19, further comprising: deforming the second outer wall, after inserting the spigot portion into the bell portion. 23. The method of claim 19, further comprising forming a water-tight interface between a sealing surface of the gasket and the second outer wall when the spigot portion is inserted into the bell portion.
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