Watershed Geosynthetics, LLC Patent applications |
Patent application number | Title | Published |
20150252525 | WIND RESISTANT ENVIRONMENTAL SYNTHETIC COVER - A system for covering (i.e., closing) various types of sites where waste is deposited comprises a composite of one or more geotextiles that are tufted with synthetic yarns and an impermeable geomembrane, which is comprised of a polymeric material. The geotextiles can comprise polypropylene or polyethylene. The cover can include wind-resistant textured synthetic blade-like elements, such as vertical filaments, secured over a low-permeable polymer liner backing. Advantageously, the system does not rely on piled-on weight to resist wind forces and the cover can be deployed over a large area with little or no ballasting or anchoring. Optionally, the cover includes vertical filaments attached to the liner to break the wind aero-dynamics on the exposed cover. With this system, it is believed that the wind velocity on the impermeable surface (membrane) now becomes turbulent near the surface of the cover, thus greatly reducing the actual wind velocity at the liner surface and decreasing associated uplift. | 09-10-2015 |
20150118418 | GEOCOMPOSITE COVERING - A geocomposite covering for placement atop the ground and includes a lower carrier layer and an intermediate layer of particulate material positioned above the lower carrier layer. A synthetic turf is positioned over the particulate material and is affixed to the lower carrier layer to contain the particulate material between the lower carrier layer and the synthetic turf. The synthetic turf is affixed to the lower carrier layer by one or more of stitches, needle-punched staple fibers, linking fibers, heat bonded fibers, or mechanical fasteners. The particulate material can include clays, cementitious materials, granular material, powder-like material, and the like. | 04-30-2015 |
20140261788 | GAS VENT WITH LOW-PRESSURE RELIEF VALVE FOR LANDFILLS - A gas vent for a landfill includes a sub-surface gas collection manifold for collecting sub-surface gas from beneath a geomembrane. Preferably, the collection manifold includes a plenum for receiving sub-surface gas. A conduit is connected to and extends upwardly from the plenum, with the conduit communicating with the interior volume of the plenum and having an upper discharge end. The conduit is adapted and provided for communicating sub-surface gas from within the interior volume of the plenum through the geomembrane. A low-pressure relief valve is operative for opening when positive pressure exists within the conduit. The low-pressure relief valve comprises a valve membrane normally resting upon a seat and which is lifted off the seat by low positive pressure. | 09-18-2014 |
20140238589 | METHODS FOR JOINING STRIPS OF SYNTHETIC TURF AND FOR COVERING A SITE WITH SYNTHETIC TURF - A method for covering a site with synthetic turf includes laying down a first elongate strip of synthetic turf, laying down a second elongate strip of synthetic turf, with the second elongate strip of synthetic turf is laid down substantially adjacent to the first elongate strip of synthetic turf in a manner such that a portion of the second elongate strip partially overlays a portion of the first elongate strip forming a lap joint. The method also includes the step of applying heat and/or pressure to weld the first elongate strip of synthetic turf to the second elongate strip of synthetic turf along the lap joint. | 08-28-2014 |
20140170339 | SYNTHETIC GROUND COVER SYSTEM WITH IMPERMEABLE BACKING AND BINDING INFILL FOR EROSION CONTROL - A synthetic ground cover system for erosion control to be placed atop the ground, including a synthetic grass which comprises a composite of one or more geotextiles tufted with synthetic yarns and an impermeable backing/layer. The synthetic ground cover also includes a sand/soil infill ballast applied to the synthetic grass and a binding agent applied to the sand/soil infill to stabilize the sand/soil infill against high velocity water shear forces. | 06-19-2014 |