Patent ID: 8074420

Claim:
A curved tubular member that joins a first section of square metal tubing to a second section of square metal tubing, wherein said curved tubular member comprises: a. a curved outer side, wherein said curved outer side forms an outer radius of curvature of said curved tubular member; b. a curved inner side, wherein said curved inner side forms an inner radius of curvature of said curved tubular member, wherein said inner radius of curvature is less than said outer radius of curvature; c. a first lateral side; d. a second lateral side, wherein said second lateral side opposes said first lateral side, wherein said curved tubular member has a square cross-sectional shape when said curved tubular member is cut at any point along the outer and inner radii of curvature, and wherein said curved tubular member further comprises: e. a first end, wherein said first end connects to an end of the first section of square metal tubing; and, f. a second end, wherein said second end connects to an end of the second section of square tubing, whereby the first section of square metal tubing is joined to the second section of square metal tubing by said curve tubular member.