Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Robert Schluter0
Date of Patent
December 6, 2011
0Patent Application Number
123867100
Date Filed
April 21, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A fastener assembly comprising a fastener with a head having a first surface and second surface, and a shaft extending from the second surface of the head. An annular washer is rotatably disposed about the shaft and rotatable relative to the second surface of the fastener head. The washer has an inner diameter, an outer diameter, a first surface and a second, the first surface being positioned adjacent to the second surface of the head. A plurality of identical conical projections extend out from the second surface of the washer and are formed integrally therewith.
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