Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Oliver Joen-an Ma0
Date of Patent
February 25, 2014
Patent Application Number
13174523
Date Filed
June 30, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
In a further embodiment, a method of controlling a base assembly can be provided. An actuation member can be pumped to deploy one or more wheels to lift a base assembly on said wheels. Further, a pin can be received in a holding portion on a semi-planar contoured surface in response to the pumping of the actuation member. The wheels can be held in a deployed position via the pin being held in the holding portion. Further pumping of the actuation member can separate the pin from the holding portion and retract the wheels from the deployed position.
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