| 主权项 |
1. An apparatus comprising:
a structure that encloses an elongated space along an axis, and an inflatable bladder that has (a) a flexible outer bladder surface that engages an interior of the structure, (b) a flexible inner bladder surface that encloses a tubular inner space that is within the elongated space and is sized to receive a handle of a handheld tool, and (c) an interior space between the two flexible bladder surfaces to hold a pressurized fluid, the inflatable bladder comprising (a) two segments that meet at a fold, (b) a valve that is at an apex of the fold and extends along the axis at a first end of the structure, and (c) two ends of the two segments, the two ends located in the vicinity of a second end of the structure, the fold being located on the inflatable bladder such that the inner surface of the inflatable bladder can engage the handheld tool on the two segments that meet at the fold, the structure that encloses the elongated space being sufficiently rigid to resist expansion of the inflatable bladder. |
