Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jin-Xin Wang0
Jian Li0
Date of Patent
May 4, 2010
0Patent Application Number
122486240
Date Filed
October 9, 2008
0Patent Primary Examiner
Patent abstract
A stand includes a frame, a sliding member, and two torsion springs. The frame has two guide rail subassemblies. The sliding member is slidably attached to the guide rail subassemblies. A first end of each torsion spring is connected to the frame, and a second end of each torsion spring is connected to the sliding member to provide an elastic force to overcome the total weight of the sliding member and a load.
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