Patent ID: 8397975

Claim:
An adjustable removable two-ring clamp assembly for temporarily holding together and locking in place two tubular sections that are to be welded or bonded together to form an assembly, the clamps comprising: a two-ring clamp assembly having a first segmented ring assembly adapted to be received on and secured around an end portion of a first tubular section at a given point and a second segmented ring assembly adapted to be received on and secured around an end portion of a second tubular section; each said first and second segmented ring assembly formed of a first half segment and a second half segment, each half segment formed of a metal strap having a semicircular main body portion with an outwardly extending flange portion at each end, said flange portions at each end of said first half segment having a circular hole therethrough, said flange portions at each end of said second half segment having a square hole extending therethrough, and said outwardly extending flange portions of said first and said second half segments disposed in opposed facing relation when received on said first and said second tubular sections; first and second link members disposed between opposed facing surfaces of said outwardly extending flange portions of said half segments; a first and a second carriage bolt installed through each of said aligned circular and square holes in said outwardly extending flange portions and said first and second link members, respectively, and a nut at an outer end of each said carriage bolt for loosening and tightening said link members; said first ring assembly and said second ring assembly pivotally connected together by said first and second carriage bolt and nut and said first and second link members to pivot relative to one another in an arc along a curved axis extending through the center of each said ring assembly so as to be disposed at an angle relative to one another; whereby said first and second carriage bolts and said first and second link members in a loosened condition allow the end portions of the tubular sections to be butted together concentrically end-to-end and rotated relative to one another about their respective axes to accommodate selective positioning of the axes of curved tubular sections and/or straight tubular sections in a combination of planes; said first and second carriage bolts and said first and second link members in a tightened condition secures each said ring assembly around the end portion of the first tubular section and end portion of the second tubular section, respectively, in the butted together concentric end-to-end relation to allow placement of tack welds or a bonding agent along their butted together ends; and said first and second carriage bolts and said first and second link members selectively loosened to allow removal of said ring assemblies from the joined tubular sections, or repositioning thereon for receiving another tubular section and repeating the positioning and tack welding or bonding procedure at another end.