Campy 13 speed patent

[bikinchris]

This article describes a Campy patent for a rear derailleur with a curved progression of the jockey wheels.

https://bikerumor.com/2020/08/20/patent-patrol-campagnolos-curving-wide-range-derailleur-13-speed-cassettes-eps-buttons-more/

[ducati2]

There it is

[Mark McM]

The method to produce the curved path of the derailleur is too complicated. And is it indicates, it has to be adjusted to match different cassettes. Campagnolo already failed a few decades ago with their over-complicated rod-actuated Croce de'Aune derailler and adjustable slant angle Chorus derailleurs, and I don't see doing any better. A dual spring system (as used by the Shimano and SRAM MTB derailleurs) is simpler, and inherently self-adjusting. I doubt we'll see this new derailleur design got into production.

[Velocipede]

The method to produce the curved path of the derailleur is too complicated. And is it indicates, it has to be adjusted to match different cassettes. Campagnolo already failed a few decades ago with their over-complicated rod-actuated Croce de'Aune derailler and adjustable slant angle Chorus derailleurs, and I don't see doing any better. A dual spring system (as used by the Shimano and SRAM MTB derailleurs) is simpler, and inherently self-adjusting. I doubt we'll see this new derailleur design got into production.

Part of the patent is already in the current and 2015+ derailleurs. The Embrace Technology is what it's called now. They already have the threaded hole, that body pin and the gearing inside the rear derailleur. The hole has a threaded plug right now. So it wouldn't be hard to add a set screw to the current design.

[Velocipede]

pic of the Embrace gearing. That hole above his thumb is the threaded hole that they have a plug in.