Abstract: A landfill (10) having a leachate collection apparatus including a layer of geonet material (40) disposed above a liner (38) as its primary leachate flow path. Leachate flows along the geonet material to a collection trench (16) located along an edge (14) of a generally planar landfill area (12). The superior hydraulic conductivity of the geonet material (34) disposed above a liner (32) is provided below the primary drainage layer for additional ground water protection. A collection box 918) having both a leachate collection compartment (54) and a leakage collection compartment (56) is disposed in alignment with openings (80, 82) formed in the respective liner layers. The sealing surfaces (64,68) between the collection box and liners are all located on upper surfaces of the collection box.
Abstract: A compact disc has an image embossed thereon and has a rectangular planar body. The compact disc stores information relating to the image and is used as a trading card. The compact disc is smaller than standard compact discs; therefore the compact disc has two ridges on the bottom surface for alignment of the compact disc with an inner circular rim of a disc tray. A docking collar is mounted to the bottom surface of the compact disc between a spindle hole and the ridges.
Type:
Grant
Filed:
December 12, 1997
Date of Patent:
June 4, 2002
Inventors:
Benjamin James Everidge, Raymond K. Engelking, Gerald A. Pierson