Hydraulic and earth engineering – Bank – shore – or bed protection – Revetment
Reexamination Certificate
1999-04-05
2001-01-09
Lillis, Eileen D. (Department: 3672)
Hydraulic and earth engineering
Bank, shore, or bed protection
Revetment
C405S015000, C405S019000, C405S244000, C052S155000
Reexamination Certificate
active
06171022
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention discloses a method of attaching a geosynthetic or erosion mat (hereinafter “mat”) to the ground. More particularly, the method teaches the use of a suitable twine, which may or may not be biodegradable, for engaging the mat to the ground in a manner similar to sewing.
2. Prior Art
Heretofore, various methods of attaching an erosion control mat to underlying ground have been proposed.
These have typically included the use of metal stakes, clips, or staples which are necessarily driven into the ground through the mat at points along the mat, to secure the mat in place upon the underlying ground.
Obviously such methods are labor intensive and therefore time consuming. Further, the material of the attachment devices has not been capable of being biodegradable because of the type of stresses placed thereon during installation.
SUMMARY OF THE INVENTION
Accordingly it is a primary object of the invention to provide a method for attaching a geosynthetic or erosion mat which is less labor intensive.
Further it is an object to provide a less concussive method allowing for use of biodegradable material in creating the attachment, if desired.
These as well as other objects are met by the mat attachment method of the present invention wherein a length of twine is fed or played out over the mat with a loop of the twine being pressed through the mat into the ground at intermittent points along the mat, with lengths of the twine between the intermittent pressed in points overlying the mat, substantially sewing the mat to the ground. Further, if necessary, the ground may be compacted around the loops of twine pressed thereinto.
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Lillis Eileen D.
McManus Kajane
Pechhold Alexandra K.
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