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US 5,782,714 AGranted
Bicycle chain guide
AssigneeEvergreen Innovations, L.L.C.
InventorAlan G. Osgood
Life of this patent
Estimating the term…
Abstract
A bicycle drive chain (1) guide to prevent the drive chain (10) from derailing off the inside of the inner chain wheel. The chain guide is a simple one piece device which can be easily attached to the bicycle frame during manufacturing.
Claims11
A one piece chain guide for preventing derailment of a drive chain from a bicycle chain wheel, comprising a plate:
- said plate having a frame attachment section with an edge that is permanently attached to a bicycle seat tube;
- said edge of said frame attachment section conforms to the shape of the bicycle seat tube;
- and a chain contacting surface, said chain contacting surface provides means for preventing said drive chain from derailing from said bicycle chain wheel.
A one piece chain guide for preventing derailment of a drive chain from a bicycle chain wheel, comprising a plate:
- said plate having a frame attachment section with an edge that is permanently attached to a bicycle seat tube;
- said edge of said frame attachment section conforms to the shape of the bicycle seat tube;
- a first chain contacting surface, said first chain contacting surface provides means for preventing said drive chain from derailing from said bicycle chain wheel;
- and a second chain contacting surface, said second chain contacting surface provides means for restraining a thrown drive chain and guiding it back to the chain wheel.
1 more element
Dependencies are inferred from the claim text.