Patent ID: 7021868

Claim:
An excavation shoring system comprising: four vertical, cylindrical poles arranged to constitute corners of a rectangle; a base element connected to a lower end of each said pole; at least one vertically oriented shoring panel corresponding to each side of said rectangle, said shoring panels corresponding to adjacent said sides of said rectangle having one end rotatably connected to a first pair of diagonally opposed said poles, said shoring panels oriented to form four vertical walls of uniform height of said rectangle and said shoring panels having an opposite movable end; and securement means for securing said opposite movable end of each said shoring panel to a second pair of diagonally opposed said poles, said securement means comprising at least two vertically oriented, U-shaped channel assemblies comprising two U-shaped channels disposed at right angles to each other connected to said second pair of diagonally opposed said poles, said U-shaped channels having a channel width substantially corresponding to a thickness of said shoring panels and oriented to receive said opposite movable end of each said shoring panel.