Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ming-Liang Tsai0
Date of Patent
October 20, 2009
Patent Application Number
11689095
Date Filed
March 21, 2007
Patent Primary Examiner
Patent abstract
A collapsible frame has a base mechanism. The base mechanism comprises a first connector and a second connector which are pivotally connected to the bottom of the collapsible frame. The first connector is pivotally connected with first reinforcement legs. The bottom of the first connector is formed with a first trough. The second connector and the first connector are overlapped and engaged with each other. The second connector is pivotally connected with a second reinforcement legs. The top of the second connector is formed with a second trough. The first and second reinforcement legs are pivotally connected to the bottom of the collapsible frame.
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