Hydraulic and earth engineering – Earth treatment or control – Ground stabilization or reinforcement
Reexamination Certificate
2006-05-23
2006-05-23
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Ground stabilization or reinforcement
C405S302600, C256S012500
Reexamination Certificate
active
07048474
ABSTRACT:
A windblown particle control device which, when attached to the surface of the earth assumes a generally tubular cross-sectional shape, stabilizes particle cover and controls deposition and retention of windblown particles. A sheet of netting material is curved in an arched configuration. Webs of the sheet are linked together to define apertures through the sheet. The apertures create aerodynamic effects in the wind which stabilize, deposit and retain the particles on the earth surface. A kit of components, which includes the netting sheet and a plurality of frame structures to support and maintain the netting sheet in the arched configuration may be employed to assemble the control device for use.
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Tabler, Ronald D.,Design Guidelines for the Control of Blowing and Drifting Snow, 1994; Figs. 2.8 and 2.9, pp. 15-16; Section 3.6 Snow Deposition and Retention Due to Vegetation, pp. 58-59; and Section 5.3.9.2 The Tensar Portable Fence, pp. 219-222.
Lagman Frederick L.
Ley John R.
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