摘要 |
Piston (25) and/or gland (20) structure for a hydraulic actuator (10) includes a plurality of deformable plate members (40, 45, 90 and 95) interconnected at a plurality of locations thereon by frangible fasteners (50). The fasteners are highly loaded in shear and fracture under conditions of abutment of the piston or gland with a ballistically damaged portion of the actuator thereby allowing the plate members to deform around the damaged portion, thus preventing jamming of the actuator.
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