Patent ID: 8784028
Filing Date: 2014-07-22
Classification: F16B,Y10T

Abstract:
1. A fastening system, comprising: a penetrating fastener, having a longitudinally separated fastener head and fastener tip spaced apart by an elongate, longitudinally oriented fastener shaft; a tetherable cavity washer, having: a substantially planar base surface having a fastener aperture extending longitudinally therethrough, the fastener aperture having at least one lateral dimension less than a corresponding lateral dimension of the fastener head, a longitudinally oriented wall extended longitudinally upward to at least a first longitudinal distance from at least a portion of the base surface to form a concave fastener cavity configured to receive at least a portion of the fastener head concurrently with at least a portion of the fastener shaft extending through the fastener aperture of the base surface, and two tether apertures extending laterally through the wall, the tether apertures being laterally spaced apart along the wall, and both of the tether apertures being laterally arranged along the wall in a rotationally asymmetric configuration, a first one of the tether apertures being located a second longitudinal distance from the base surface and a second one of the tether apertures being located a third longitudinal distance from the base surface, both the second and third longitudinal distances being greater than a longitudinal thickness of the fastener head; and an elongate tether, having first and second tether ends separated by a tether body, the tether apertures being configured to simultaneously accept the tether body extending through both of the tether apertures.