Juan P Graziosi

US Patent:

20130217527, Aug 22, 2013

Filed:

Feb 20, 2013

Appl. No.:

13/771982

Inventors:

Eduardo Graziosi - San Jose CA, US
Juan Graziosi - San Jose CA, US

Assignee:

GAMUT USA - San Jose CA

International Classification:

F16H 7/18

US Classification:

474140

Abstract:

Retention mechanisms for bicycle drive trains are disclosed. In some embodiments, a retention mechanism may include a backplate having at least one spur, at least one chain ring coupled to the backplate, and a slider coupled to the spur. The slider may be positioned between the at least one chain ring and a bicycle chain, and may include at least one track and at least one chain guide (e.g., an O-ring or ring component) seated in the track. The at least one chain guide may be configured to rotate about the track while applying tension to the bicycle chain so as to reduce friction and/or dampen noise.

US Patent:

20160146314, May 26, 2016

Filed:

Jan 29, 2016

Appl. No.:

15/010072

Inventors:

- San Jose CA, US
Edurado Graziosi - San Jose CA, US
Juan Graziosi - San Jose CA, US

International Classification:

F16H 7/18
B62M 9/16

Abstract:

Retention mechanisms for bicycle drive trains are disclosed. In some embodiments, a retention mechanism may include a backplate having at least one spur, at least one chain ring coupled to the backplate, and a slider coupled to the spur. The slider may be positioned between the at least one chain ring and a bicycle chain, and may include at least one track and at least one chain guide (e.g., an O-ring or ring component) seated in the track. The at least one chain guide may be configured to rotate about the track while applying tension to the bicycle chain so as to reduce friction and/or dampen noise.