Patent ID: 7309190
Filing Date: 2007-12-18
Classification: E02D

Abstract:
1. A shoring device comprising: (A) a piston and a cylinder, said cylinder partially enclosing said piston, said piston said cylinder and said piston both having a longitudinal axis, said piston and said cylinder each comprising a distal end and a proximal end, said cylinder comprising opposing cylinder apertures, said piston comprising opposing piston apertures, (B) a mechanical device, said mechanical device positioned along said piston and said cylinder for retention of said piston against rotation of said piston during an expanded condition, wherein said mechanical device comprises in combination, (1) an outer collar, said outer collar comprising a locking member, said outer collar movably positioned along the longitudinal axis of said piston, and (2) an inner ring, said inner ring fixedly encircling said cylinder, said outer collar concentrically enclosing said inner ring, said outer collar engaging said cylinder, said piston and said inner ring in a revolving manner, said locking member contacting said inner ring, whereby said outer collar is prevented from rotation by said locking member, said shoring device comprising removable swivel side plates, said removable swivel side plates comprising détente sphere attachments, whereby said detente sphere attachment connects said removable swivel side plates to said cylinder and said piston.