US Patent 9394931 Clamp assembly

A clamp assembly for securing together in a superimposed relationship two elongate members each having a pair of opposite edge regions, includes a clamping frame having four frame members, the frame members of a first pair of the frame members being spaced apart by a second pair and the frame members of the second pair being spaced apart by the first pair, the second pair allowing the spacing of the frame members of the first pair to be varied whereby the first pair may be brought into contact with opposite edge regions of a first of the elongate members and/or the first pair allowing the spacing of the frame members of the second pair to be varied whereby the second pair may be brought into contact with opposite edge regions of the second of the elongate members, the two pairs of frame members being interconnected by first connection elements.