Patent ID: 8267380
Filing Date: 2012-09-18
Classification: E01F,E04H

Abstract:
1. A retractable fence apparatus which comprises: a) a housing, said housing having a bottom wall, a top wall with a longitudinal slot, a rear wall, a front wall and a pair of side walls, wherein said housing is installed within the ground with said top wall level with the top of a ground; b) a lift mechanism, wherein said lift mechanism is installed onto said bottom wall within said housing; c) a barrier assembly, wherein said barrier assembly is installed within said housing onto said lift mechanism; and d) means for operating said lift mechanism, wherein a portion of said barrier assembly is raised up and lowered down through said longitudinal slot in said top wall of said housing, wherein said lift mechanism comprises: e) a base platform having opposite upwardly extending side rails; and f) a lazy tongs structure comprising an expandable scissor linkage and having a plurality of upper and lower rollers attached to respective upper and lower ends of the linkage, said lazy tongs structure is positioned horizontally, wherein said lower rollers will ride on a top surface of a base platform of lift mechanism between said opposite upwardly extending side rails, wherein said upper rollers will ride on a bottom surface of a base platform of barrier assembly between said opposite downwardly extending side rails, wherein said barrier assembly comprises: g) a base platform having opposite downwardly extending side rails; and h) a picket fence structure mounted vertically onto said base platform, wherein said upper rollers of said lazy tongs structure will ride on a bottom surface of said base platform between said opposite downwardly extending side rails.