Patent ID: 8388256

Claim:
A clamp comprising: first and second connecting members and a fastener operable by a tool to engage the first and second connecting members, each connecting member having an inner surface, an outer surface and a mating surface extending laterally between edges of said inner and outer surfaces, the first connecting member including a fastener retainer located at the mating surface of the first connecting member, the second connecting member having a recess at the inner surface proportioned to accept the fastener and a bore extending from the outer surface to the recess at the inner surface, wherein the bore is proportioned to allow entry of the tool through the bore to operate the fastener and to prevent release of the fastener through the bore, wherein the connecting members are part cylindrical, and wherein the first and second connecting members are provided as cooperating C-rings respectively configured to have first and second mating surfaces with a semi-cylindrical portion therebetween, such that, when a fastener retainer of one C-ring is arranged to correspond with a recess of the other C-ring, and when the mating surfaces are engaged, a C-ring clamp is provided.