FLUID-ACTUATED FASTENING DEVICE

摘要

A fluid-actuated fastening device (100) comprises a housing (104) including a housing body (106) defining a fluid cavity (108) and a fluid port (110). The fluid port places the fluid cavity in selective communication with an outside fluid source. A telescoping mast assembly includes a mast sleeve (232). A spindle (242) has longitudinally spaced inner and outer spindle ends (244, 246) separated by a longitudinally oriented spindle body. The spindle body is at least partially located within the mast sleeve for telescoping longitudinal movement with respect thereto to transform the mast assembly between compressed and expanded mast states. At least one disc spring (250) is located substantially within the fluid cavity. Introduction of pressurized fluid into the fluid cavity via the fluid port causes at least one of travel of the disc spring between flexed and relaxed spring states and translational movement of the mast between the compressed and expanded mast states.