Patent ID: 8186643

Claim:
An apparatus for attaching a device to a circular structure, wherein the apparatus comprises: a clamp body having a first end and a second end and comprising a first opening configured to receive the device, wherein the bottom surface of the clamp body is configured to rest on the outer surface of the circular structure; pivots extending through the clamp body at the first end and the second end, the pivots including a first pivot to pivotally attach a first fastener to the first end and a second pivot to pivotally attach a bolt arm to the second end; a bolt extending through the bolt arm and perpendicular to the second pivot, the bolt having a first end below the bolt arm and the second pivot and a second end above the bolt arm and the second pivot; a second fastener attached to the first end of the bolt; a nut attached to the second end of the bolt; one or more straps configured to be placed on the circumference of the outer surface of the circular structure, wherein a first end of the one or more straps is fastened to the first fastener and a second end of the one or more straps is fastened to the second fastener; a spring compressed between the nut and the bolt arm, wherein the spring maintains an attachment force between the clamp body and the outer surface of the circular structure provided by the one or more straps to prevent movement of the clamp body along the outer surface of the circular structure; a pushing nut in the first opening for applying force on the device until the device is attached to the outer surface of the circular structure; and a spring washer in the first opening between the pushing nut and the device, wherein the spring washer maintains an attachment force between the device and the outer surface of the circular structure provided by the pushing nut to prevent detachment of the device from the outer surface of the circular structure.