Invention Grant
- Patent Title: Multi-wall corrugated pipe couplings and methods
- Patent Title (中): 多壁波纹管接头及方法
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Application No.: US12272075Application Date: 2008-11-17
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Publication No.: US08820801B2Publication Date: 2014-09-02
- Inventor: Gerald S. Sutton , William V. Shaffer , James B. Goddard , John M. Kurdziel , David J. Kelley , Jeffrey J. Biesenberger
- Applicant: Gerald S. Sutton , William V. Shaffer , James B. Goddard , John M. Kurdziel , David J. Kelley , Jeffrey J. Biesenberger
- Applicant Address: US OH Hilliard
- Assignee: Advanced Drainage System, Inc.
- Current Assignee: Advanced Drainage System, Inc.
- Current Assignee Address: US OH Hilliard
- Agency: Finnegan Henderson Farabow Garrett & Dunner, L.L.P.
- Main IPC: F16L17/00
- IPC: F16L17/00

Abstract:
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 bell portion of corrugated wall and an outer wall; a second pipe section having disposed at one end a spigot portion, the spigot portion having a spigot portion of corrugated wall between an inner wall and an outer wall; and a gasket disposed in a groove extending around a circumference of the spigot portion and engaged between the bell portion of corrugated wall and the spigot portion of corrugated wall. A multi-wall, corrugated pipe section, and method for assembling a plurality of multi-wall, corrugated pipe sections, are also disclosed.
Public/Granted literature
- US20090127853A1 THREE-WALL CORRUGATED PIPE COUPLINGS AND METHODS Public/Granted day:2009-05-21
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