Hydraulic and earth engineering – Earth treatment or control – Impermeabilization
Patent
1986-11-04
1989-05-09
Reese, Randolph A.
Hydraulic and earth engineering
Earth treatment or control
Impermeabilization
405268, 405303, 156538, 156574, 156575, 156577, 404100, E01C 1900, E02B 1102, B05C 1102
Patent
active
048284327
ABSTRACT:
Apparatus for lining an irrigation canal with a sheet of fiber-reinforced plastic includes structure for depositing a layer of resin and fiber on a web of flexible carrier material, partially curing the resin prior to laying the sheet in the canal, and then laying the sheet in the canal while the resin is flexible enough to conform to the shape of the canal. The final curing of the resin takes place after the sheet is placed in the canal. A predetermined-shape wrinkle is induced in the carrier web before it is laid into the canal to assist in conforming the sheet to the canal shape without causing randomly placed wrinkles so that the sheet is smooth in the canal. The apparatus forms the sheet and is propelled so that it travels along the length of the canal, fabricating a continuous sheet as it travels. In one embodiment the carrier is a flexible but nonelastic material like kraft paper, coated on one side with wax or other film to prevent saturation by the resin.
REFERENCES:
patent: 473009 (1892-04-01), Lyon
patent: 3060077 (1962-10-01), Kauer
patent: 3617423 (1971-11-01), Nyon et al.
patent: 4087296 (1978-05-01), Hooker
patent: 4456399 (1984-06-01), Conover
PMC, Inc.
Reese Randolph A.
Ricci John A.
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