Patent ID: 8926247
Filing Date: 2015-01-06
Classification: F16B,F16F

Abstract:
1. A washer assembly configured to isolate a work-piece from a fastener and/or another structure, the washer assembly comprising: a rubber isolator having an upper portion, a lower portion, a side portion extending therebetween and an axis extending therethrough, the rubber isolator further having at least one protuberance extending from the lower portion in a direction of the axis and being configured to directly contact a surface of the work-piece; and a metal strengthening member permanently secured to the rubber isolator so as to form a single, non-detachable unit, wherein the at least one protuberance is configured to be compressed during a normal operating condition, and wherein the metal strengthening member is configured to be compressed during a peak operating condition in which greater force is exerted into the washer assembly than during the normal operating condition, said metal strengthening member being configured to not contact the surface of the work-piece.