Abstract: A chime assembly (2) includes a plurality of tubular chimes (12) arranged in a straight or curved line. Each chime has a desired tone and is arranged in a series to create a non-scalar arrangement of said tones so that when the chimes are sound sequentially, a tune is created. The chime assembly includes a support frame (4) having upper and lower damping couplings (22,32). Each chime is mounted to a support rod (14) passing coaxially through the chime through the engagement of spring elements (34) engaging holes (44) formed at the nodal points of the chime. The ends of the support rod are supported by the upper and lower damping couplings. The damping couplings include grommets (30) circumscribing the support rod and damping foam (26) surrounding the ends of the support rod.

Abstract: A coupling for circular spiral lock seam conduit sections is comprised of a band curved to encircle the conduit, preferably with overlapping ends, a groove running along the interior of the band of sufficient cross section to receive the spiral lock seam, and clamps for tightening the band around the conduit sections. The groove runs at an angle along the band to form a spiral when the band is curved around the conduit sections, which mates with the spiral of the lock seam. The width of the groove exceeds that of the lock seam so that when the band is tightened the groove will shift laterally, sealing one side of the groove against the facing side of the lock seam. Other features are included to provide the maximum degree of sealing around the entire circumference of the conduit sections.