Patent ID: 8156707
Filing Date: 2012-04-17
Classification: B66C,E04C

Abstract:
1. A composite frame assembly, comprising: column and rail channels, each channel including a web and first and second legs, each leg extends from a side of the web and is inclined relative to the web to form a concave interior, a cylinder is located at an edge of each leg that is spaced a radial length from the web, and a plane outer surface of each leg is tangential to the respective cylinder of the corresponding leg so that an outer surface of the cylinder extends from the plane surface of the corresponding leg and continues around on an opposite side of the plane surface and within the concave interior of the respective channel, so that the plane surface of each leg and outer surface of the respective cylinder tangentially extended therefrom forms a flat exterior face; columns, each column comprising interconnecting column channels having paired legs and webs forming a hollow rectangular cross-sectional shape; a rail comprising first and second rail channels supported on two of the columns; and a plurality of fittings with each fitting engaging at least one of the cylinders of the first and second rail channels for fixing the first rail channel in position relative to the second rail channel by clamping the respective cylinder and a portion of the corresponding plane surface of the adjoining leg to define an angle at which the web of the first rail channel is inclined relative to the web of the second rail channel.