Patent ID: 8929002
Filing Date: 2015-01-06
Classification: G02B

Abstract:
1. An apparatus, comprising: an elongated plate having a length substantially greater than a width and an attachment interface; a first clamping mechanism comprising a first cross piece enabled to fasten to the elongated plate, below the plate and orthogonal to the plate at the attachment interface, at least one first bumper block formed of rubber or rubber-like material positioned under the first cross piece, a first inflexible strap joined to an anchor point of the first cross piece on one side of the elongated plate, and a first tightening mechanism joined to the cross piece on a side of the elongated plate opposite the anchor point, the first tightening mechanism enabled to engage and draw the first inflexible strap; and a second clamping mechanism comprising a second cross piece enabled to fasten to the elongated plate, below the plate and orthogonal to the plate at the attachment interface, at least one second bumper block formed of rubber or rubber-like material positioned under the second cross piece, a second inflexible strap joined to an anchor point of the cross piece on one side of the elongated plate, and a second tightening mechanism joined to the second cross piece on a side of the elongated plate opposite the anchor point, the second tightening mechanism enabled to engage and draw the inflexible strap; wherein the attachment interface of the elongated plate allows the first and second cross pieces of the first and second clamping mechanisms to be assembled to the elongated plate at a plurality of different positions along the length of the elongated plate, such that a distance between the first and second clamping mechanisms may be adjusted along the length of the elongated plate, allowing the first and second clamping mechanisms to be joined to a tubular barrel at two different positions of equal or differing diameter.