Patent ID: 8061947
Filing Date: 2011-11-22
Classification: F16B

Abstract:
1. An apparatus comprising: structure having a first surface and defining a structure hole that is characterized by an opening at the first surface; a protuberance extending from the first surface around the opening, said protuberance having a second surface that cooperates with the first surface to define a concavity; a retention member being disposed within the concavity, and having an outer surface abutting the second surface and an inner surface that defines a retention member hole, said retention member hole having a first portion characterized by a first diameter and a second portion characterized by a second diameter; and a threaded fastener having a first flange characterized by a third diameter greater than the first diameter and less than the second diameter, said flange being disposed within the second portion of the retention member hole and between the first portion of the retention member hole and the first surface; wherein the retention member includes a second flange that defines the first portion of the retention member hole.