Patent ID: 9677582
Date: 2017-06-13
CPC Classifications: F16B

Claim:
1. A fluid-actuated fastening device for connection to a workpiece, the fastening device comprising: a housing, including a housing body defining a fluid cavity and a fluid port, the fluid port placing the fluid cavity in selective communication with an outside fluid source, the housing body including a mast aperture concentrically surrounding a longitudinal axis; a telescoping mast assembly including: at least one disc spring having a central disc spring aperture concentrically surrounding the longitudinal axis, the disc spring being located substantially within the fluid cavity and being configured for selective travel between flexed and relaxed spring states; wherein introduction of pressurized fluid into the fluid cavity via the fluid port causes at least one of travel of the disc spring between the flexed and relaxed spring states and translational movement of the mast assembly between the compressed and expanded mast states.