Patent ID: 9194529
Filing Date: 2015-11-24
Classification: E02B,F16L

Abstract:
1. A perforated drain pipe protection apparatus in combination with a perforated drain pipe comprising: a perforated drain pipe having a plurality of perforations; a sheet of fluid permeable material woven from a plurality of high strength yarns having an inner surface and an outer surface and a longitudinal direction and a width direction defined by two edges of said sheet along said longitudinal direction; a fastening structure configured to join said two edges to form a seam as said sheet of permeable material is wrapped in said width direction around a perforated drain pipe to be installed underground to form a protective sock cover along said longitudinal direction, said sock configured to be installed underground with said perforated drain pipe about which it is wrapped; a coupler comprising a first coupler half and a second coupler half, both halves comprising a leading edge to stabilize a soil matrix as said pipe and said protective sock cover are inserted into a borehole, and at least one slot disposed in an outer surface to allow a fluid to pass by said coupler as said coupler is pulled through said borehole; a plurality of bolts to join said first coupler half to said second coupler half about said pipe and said protective sock cover, wherein said coupler formed by said first coupler half joined to said second coupler captures said protective sock cover at a location on said pipe at a distance of greater than about six inches from a first end of the pipe which is to be mechanically coupled to an installation apparatus to install the pipe and protective sock cover into the borehole, and wherein the installation apparatus is not directly coupled to said coupler for the installation of said pipe with said protective sock cover into said borehole; and wherein said protective sock cover acts as a fluid permeable filter which keeps debris including sediment or rocks from migrating into said perforated drain pipe while allowing fluid to drain from said perforated drain pipe through said plurality of perforations both during installation, and during a service life of said perforated drain pipe and said sock.