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| Number | Title | Issue Date |
| 4417828 | Erosion protection mat A tissue mat protecting against erosion comprising a water-pervious tissue layer provided with anchoring loops. The anchoring loops have the form of a yarn woven across the tissue and protruding from the surface of the tissue. It is possible to use a rugg... | 11/29/1983 |
| 4407606 | Method and apparatus for producing and laying a ballasted mat for ground stabilization The disclosure relates to a method of producing and laying on the ground a ballasted mat defined by two layers of sheet material joined together along parallel lines and enclosing particulate ballast material by providing two sources of sheet material and... | 10/04/1983 |
| 4375928 | Flexible concrete for soil erosion prevention This invention consists of a flexible type of concrete guard against the erosion of soil by flowing waters and wave action. It consists of rows of comparatively small, identical concrete blocks which form rectangular sections which are placed upon the gro... | 03/08/1983 |
| 4352590 | Stabilization of erodible marine or fluviatile sediments An erodible marine or fluviatile sediment such as a sedimentary layer is stabilized by depositing on the sediment a non-setting paste-like slurry, for example, mud or clay containing a framework of gravel, using a laying head which is towed over the sea b... | 10/05/1982 |
| 4286895 | Underwater paving machine and concrete blocks therefor An underwater paving machine for making fillings on the river beds is provided comprising a boat having a platform carrying a working structure comprising a pair of uprights supporting a horizontal shaft driven by a motor and carrying a number of spools o... | 09/01/1981 |
| 4277201 | Transportable roadway and means for deploying the same A transportable roadway which can be folded layer upon layer on a flat bed ransporter/launcher vehicle and be easily deployed in a swampy or marshy area to provide a temporary roadway during military operations. The roadway comprises a plurality of section... | 07/07/1981 |
| 4227834 | Block laying machine A machine for assisting in the laying of courses of blocks to form a ground covering layer in erosion control systems has a flexible apron on which the blocks are laid, a frame attached to one side of the apron, and two spaced and independently actuable p... | 10/14/1980 |
| 4201494 | Installing panels of interlocking blocks Installation of panels of interlocking blocks for erosion control purposes uses apparatus for hoisting the panels into position comprising parallel suspension cables passing through the panel and a laterally removable support bar releasably locked to the ... | 05/06/1980 |
| 4165617 | Process and apparatus for applying and compacting castable material in strips on a sloped surface An earthen structure for holding back a body of water has a sloped surface which is paved with an overlapping arrangement of strips constructed of castable material. Each strip is formed by conveying castable material from a mobile receiving hopper that i... | 08/28/1979 |
| 3957098 | EROSION CONTROL BAG An erosion control bag of dark-colored fabric for underwater use and light-colored for other use is disclosed having a porosity of 10 to 35 cubic feet per minute so that air and water may escape from the bag as water and a filler are pumped into the bag. ... | 05/18/1976 |
