Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Christopher A. Wickliffe0
Date of Patent
May 31, 2011
0Patent Application Number
111553110
Date Filed
June 17, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A front derailleur including a chain guide for engagement and disengagement of a bicycle chain with multiple chain rings of a crankset is disclosed. The chain guide may be positioned by linear guide rods. The chain guide may have an inner lifting surface and an outer pulling surface for engaging diametrically opposed corners of a chain when viewed in cross-section.
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