Single pivot front derailleur

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9919765
SERIAL NO

14215213

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Abstract

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Embodiments of a front derailleur gear shifting system including various unique chain guides attached to and operating from a single pivot point. This derailleur system provides a simple, yet, elegant and robust improvement in shifting technique over conventional, lateral motion front derailleurs. Embodiments of open and closed annulus chain guides having specially shaped lifting and pulling surfaces for acting upon a bicycle chain during shifting are also disclosed. Additionally, as an optional enhancement, a dual-sided chain catcher that prevents unintended over-shifts in either direction is disclosed.

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Patent Owner(s)

Patent OwnerAddress
WICK WERKS LLC1320 16TH STREET OGDEN UT 84404

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goates, Eldon L Colorado Springs, US 14 187
Wickliffe, Christopher A Ogden, US 21 383

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