Hydraulic and earth engineering – Earth treatment or control – Ground stabilization or reinforcement
Reexamination Certificate
2007-07-31
2007-07-31
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Earth treatment or control
Ground stabilization or reinforcement
C405S302600
Reexamination Certificate
active
11385614
ABSTRACT:
A method of site preparation in environmentally sensitive areas. A first step involves determining boundaries of a site. A second step involves removing obstacles, if any, from within the boundaries of the site. A third step involves laying a layer of interlocking wood fibre on the site. A fourth step involves packing down the layer to form a cohesive ground cover mat. The steps of laying a layer of interlocking wood fibre on the site and packing down the layer is repeated to increase a thickness of the cohesive ground cover mat, until a hard packed base of at least six inches in depth has been formed.
REFERENCES:
patent: 4433813 (1984-02-01), Whatton et al.
patent: 4830532 (1989-05-01), Macke et al.
King County ‘Shredded Wood-Waste and Landscape Mulch’, May 11, 2005, available at http://www.metrokc.gov/procure/green/hogfuel.htm, Maple Valley, WA, as early as May 11, 2005.
Sustainable Business CD Library:Cleaner Production Intrnational, L.L.C., htty://www.cleanerproduction.com/hits/CDlibrary.htm (web page) re: Cleaner Production, Pollution Prevention and Sustaniable Business, 56 pp.
Davis & Bujold & Daniels, P.L.L.C.
Ecoroads Holdings Ltd.
Lagman Frederick L.
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