Abstract: A clamp assembly is provided for clamping one tubular to another, such as a control line to a marine choke and kill riser line. The clamp assembly comprises an upper clamp half, a lower clamp half, a hinge pin connecting the halves, and a fastener latching the halves. The fastener comprises a bolt carried by a rotatable pivot pin mounted in the lower clamp half. Slots are provided in the upper clamp half and the lower clamp half so that the bolt can swing in and out of engagement with the clamp halves to permit the assembly to be opened for mounting the tubular, and then closed and locked by tightening the bolt to retain the tubular in the clamp assembly. Loose parts are thereby avoided.

Abstract: A clamp system is provided for clamping one tubular to another, such as control lines to a marine choke and kill riser line. The riser clamp comprises a saddle and U-bolt arrangement. The upper surface of the saddle defines a track configured to receive a shoe attached to either the control line clamp or an extension leg attached to the control line clamp. The control line clamp comprises an upper clamp half, a lower clamp half, a hinge pin connecting the halves, a fastener latching the halves, and a support leg having a shoe for receipt by either the saddle structure or the extension leg. The control line clamp preferably contains an elastomeric liner. The elastomeric liner is preferably provided in two halves. The inner surface of each liner half preferably is provided with a non-skid layer to more firmly position the control line.