Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Luke F. Brown1
Date of Patent
April 30, 2019
1Patent Application Number
158793091
Date Filed
January 24, 2018
1Patent Citations Received
Patent Primary Examiner
Patent abstract
Ball cup assemblies positioned in the four corners of a main body having an open center area and a handle spanning the opening. A roller ball is positioned in each of the ball assemblies, ball bearings are positioned between the housing and the roller ball, held in place by a binder ring. A retainer ring is attached to the lower peripheral surface of the ball housing.
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