Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 30, 2019
Patent Application Number
14217421
Date Filed
March 17, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
A device for use in physical therapy is provided. The device includes an axis, and a plurality of balls which are rotatably mounted on the axis. Each ball is equipped with a shaft through which the axis extends. The surface of the shaft is equipped with a plurality of spaced apart protrusions, and an adjustable locking feature disposed on the axis that rotatably and releasably engages the grooves formed by the spaces between the protrusions such that the distance between the balls may be adjustably fixed to any of a plurality of predetermined values.
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