Abstract: Apparatus for fatigue or mechanical friction damping measurement testing a specimen the apparatus including a body having opposing arms defining between them a space for receiving the specimen, one of the opposing arms having a fixture for securing the specimen, another of the opposing arms having a further fixture for securing the specimen, the fixture and the further fixture being adjustable to increase or decrease the relative distance therebetween, wherein the body includes an assigned vibration location to which excitation signals are applied during testing.

Abstract: Apparatus for fatigue or mechanical friction damping measurement testing a specimen the apparatus including a body having opposing arms defining between them a space for receiving the specimen, one of the opposing arms having a fixture for securing the specimen, another of the opposing arms having a further fixture for securing the specimen, the fixture and the further fixture being adjustable to increase or decrease the relative distance therebetween, wherein the body includes an assigned vibration location to which excitation signals are applied during testing.

Abstract: A collapsible, dish shaped assembly, for example, for use with a satellite. The dish shaped surface is assembled from two sets of rigid panels. The first set of panels is rotated into position on hinges, which attach the panels to a base. The second set of panels is then rotated into position, also on hinges at the base, such that the second set of panels fill in the spaces between the panels of the first set. A latch connects each pair of adjoining panels. The latch comprises a protrusion which slides into a corresponding cavity. The resulting latch is resistant to lateral force. The latching process is facilitated by magnetic forces, which also add to the final latching force. The latches can be disengaged by jacking screws.

Abstract: A boating shoe, comprises an upper unit, a midsole and a high traction outsole attached to the bottom of said midsole. The upper unit includes a padded tongue made of a substantially nonabsorbent material and an inner lining having at least two plies. The outer ply adjacent the wearer's foot is made of a hydrophobic material and the inner ply is made of a hydrophilic material with good wicking characteristics. A bottom sock made of a fabric material through which water can flow freely is sewn to the bottom of the upper unit. The midsole is molded from a plastic material and includes forward and rear drainage cavities, each having a plurality of upstanding projections for supporting the wearer's foot. Drainage channels extend from each of the cavities through the midsole to its outer surface so that water flowing into the cavities of the midsole will be drained from the shoe.