Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 27, 2015
Patent Application Number
13650165
Date Filed
October 12, 2012
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
An apparatus can include a plate member having a top surface, a bottom surface and a hole extending between the top and bottom surfaces. The plate member hole can have a spherically shaped sidewall. A right-hand helical thread can be formed in the sidewall of the plate member hole, and a left-hand helical cut can be formed in the sidewall of the plate member hole intersecting the right-hand helical thread. The left-hand helical cut can be configured to reduce a portion of a contact surface area of the right-hand helical thread and the sidewall of the plate member hole.
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