Patent ID: 7048471

Claim:
A device for shoring a trench comprising: a.) vertical rails, each said vertical rail having opposing sides, each said opposing side comprising at least two separated wall panel guides, an outer wall panel guide and an inner wall panel guide evenly aligned relative to center axis of said vertical rail, said wall panel guides being adapted to slidably interlock shoring panels sliding vertically within, and said vertical rail further comprising lengthwise a tubular truss guide having an arcuate cross section; and b.) a mobile truss comprising at least one spreader with two end assemblies fastened respectively via contact flanges on either end of said spreader, each said end assembly including a vertical section of a tubular member, said vertical section being further adapted to cooperatively engage said truss guide of said vertical rail; and c.) shoring panels, each said shoring panel having on either end a guide member fitting within any of said wall panel guides of vertical rail, said shoring panels being of equal length and having identical design of said guide members whether sliding within said outer wall guide or said inner wall guide of said vertical rail.