Patent ID: 7717641
Filing Date: 2010-05-18
Classification: E01F

Abstract:
1. A method of replacing a retractable assembly of a barrier assembly, the method comprising the following steps: providing a barrier assembly in the ground, the barrier assembly comprising (1) a support assembly configured to secure to the ground, and (2) a first retractable assembly releasably attached to the support assembly, the support assembly comprising a housing, a casing and a multi-flange assembly, whereby the casing is affixed at a first end to an inner most flange of the multi-flange assembly and extends below grade therefrom, whereby the housing is attached to an outer flange adjoining the inner most flange and extends below grade surrounding the casing, the outer flange being permanently secured to the ground at about grade level and comprising a means for supporting the inner most flange at about grade level, and whereby the first retractable assembly is configured to be received within the casing; removing the inner most flange, the casing affixed thereto, and the first retractable assembly out from the remaining support assembly; and re-inserting the inner most flange, the casing affixed thereto, and a second retractable assembly back into the remaining support assembly reestablishing the multi-flange assembly.