Levee gate and process for the production thereof

Details Levee gate and process for the production thereof Levee gate and process for the production thereof

1993-02-19

1994-07-19

Reese, Randolph A.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

405107, 405117, 15624413, 15624419, E02B 706, B29C 4700

Patent

active

053302907

ABSTRACT:
A levee gate and the process for the production thereof. The levee gate of the invention includes a rectangular sheet of thermoplastic material with a rectangular sleeve located on one edge of the thermoplastic material, the rectangular sleeve being a portion of the rectangular sheet fused to the rectangular sheet. The process for the production of the levee gate includes extruding a cylindrical tube of thermoplastic material, inflating the cylindrical tube as it is extruded to provide an inflated length of tube, flattening the inflated length of tube without fusing the opposed walls of the tube to each other, and continuously fusing a portion of the opposed walls together to form a seam.

REFERENCES:
patent: 3246474 (1966-04-01), Mesanger
patent: 3834167 (1974-09-01), Tabor
patent: 3855800 (1974-12-01), Ganzin
patent: 4231832 (1980-11-01), Weikert
patent: 4909666 (1990-03-01), Takasaki
patent: 5074709 (1991-12-01), Stensland
patent: 5092707 (1992-03-01), Obermeyer

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