Abstract: The Invention is an underground storage tank apparatus and method. A buried underground storage tank has a tank sump and a manway defined by a manhole skirt side wall communicating from the surface of the ground to the tank sump. A sediment trap is disposed annularly within the manway and intercepts water and sediment flowing down the manhole skirt wall. An inside wall of the sediment trap is in an annular spaced-apart relation with a tank sump perimeter watt, which together define an annular space interior volume that receives water that overtops the sediment trap inside wall and which receives liquid that overtops the tank sump perimeter wall.

Abstract: The Invention is an underground storage tank apparatus and method. A buried underground storage tank has a tank sump and a manway defined by a manhole skirt side wall communicating from the surface of the ground to the tank sump. A sediment trap is disposed annularly within the manway and intercepts water and sediment flowing down the manhole skirt wall. An inside wall of the sediment trap is in an annular spaced-apart relation with a tank sump perimeter watt, which together define an annular space interior volume that receives water that overtops the sediment trap inside wall and which receives liquid that overtops the tank sump perimeter wall.

Abstract: A board game for two players includes a game board having a plurality of triangular playing spaces, with the spaces arranged in pairs having alternating light and dark colors or shadings to form a plurality of diamond shaped areas on the board. Two sets of variously configured playing pieces are provided, with one set corresponding to the lighter colored playing spaces and the other corresponding to the darker spaces, although play may take place on any of the spaces for any of the pieces. Each set of playing pieces includes one or more pieces having single or plural space diagonal, lateral and other move patterns. The game also provides for at least some of the pieces to transpose from one color to the other of a pair of playing spaces, whereupon at least one type of playing piece is provided with a different move pattern. Each set also includes at least one playing piece which causes other pieces under its influence to transpose.

Abstract: An internal building data transmission system which uses optic fibers. It permits the flexible connection of work stations and equipment through the use of junction boxes, terminal boxes and distributing frames. The cables are connected by nonadhesive receptacles and are routed through the use of patch cord cables.