Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 18, 2017
Patent Application Number
14996828
Date Filed
January 15, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A bumper spring assembly having a one piece mandrel including an integral head piece is further configured with a cage assembly retained on the mandrel with a cage nut locked to the mandrel to obviate the need for pins, set screws, and the like, to provide a more robust assembly. In two embodiments the cage nut is locked to the mandrel in a swaging operation. Improved flow of fluids through and around the bumper spring assembly are also provided.
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