Method for forming a textured surface on a geomembrane

Details Method for forming a textured surface on a geomembrane Method for forming a textured surface on a geomembrane

1996-04-10

1998-03-17

Lusignan, Michael

Coating processes

Solid particles or fibers applied

427197, 427202, 427316, 427365, B05D 112, B05D 138

Patent

active

057284245

ABSTRACT:
A system for forming a textured surface on a geomembrane including a support surface, a first set of rollers for passing the geomembrane onto the support surface such that a surface of the geomembrane faces upwardly, a heater positioned in proximity to the surface of the geomembrane so as to heat the geomembrane to a desired elevated temperature, a particle distributer positioned above the geomembrane so as to pass solid particles onto the surface of the geomembrane in a desired particle distribution. The particles can have a desired size and geometry as they are passed onto the surface of the geomembrane. A second set of rollers is positioned adjacent to the port surface so as to receive the geomembrane after the particles have been distributed thereon. The heater includes a preheater positioned on one side of the particle distributor and a postheater positioned on an opposite side of the particle distributor. The preheater serves to elevate a temperature of the surface of the geomembrane prior to receiving particles thereon. The postheater serves to bond the distributed particles onto the surface of the geomembrane.

REFERENCES:
patent: 2936814 (1960-05-01), Yahubile
patent: 3622422 (1971-11-01), Newman
patent: 4885201 (1989-12-01), Brandt
patent: 5075135 (1991-12-01), Brandt
patent: 5612081 (1997-03-01), Orr et al.

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