Abstract: A guitar sound hole guard comprising of a body of a suitable durable material to resist pick impacts and having a lip and at least one flange; the lip further having two side edges; each flange connects to a respective side edge to be oriented perpendicular to the lip and descending away from the lip, an open channel being formed by the lip and flange; an attachment means to hold the guard in place upon a soundboard of a guitar, wherein the body receives within its open channel at least a portion of a lower sound hole edge of the sound board allowing the lip to rest upon and conform concentrically to at least the portion of the lower sound hole edge.

Abstract: The present invention provides an improved integrated translation tube for the movement of equipment and personnel through space modules, particularly for non-rigid type space modules such as the NASA Transhab module. In addition, the present invention provides an internal framework for the structural support of the space module itself, and the equipment installed internally to the space module. The present invention's arched shaped translation tube provides sufficient strength and rigidity to provide the required structural support, while simultaneously maximizing the uninterrupted interior volume of the space module.