This inventor holds 5 USPTO granted patents. Top assignees: Hayes Bicycle Group Inc., Hayes Disc Brakes, LLC, Hayes Disc Brake, LLC. Active years: 2005-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 29 
2 out of 2 
1 out of 1 Years Active: 2005-2009
Title: The Innovative Contributions of Darren J Campbell
Introduction
Darren J Campbell is a notable inventor based in Menomonee Falls, Wisconsin. He has made significant contributions to the field of bicycle braking systems, holding a total of five patents. His work focuses on enhancing the functionality and user-friendliness of braking mechanisms.
Latest Patents
One of Campbell's latest patents is for a lever assembly and master cylinder. This invention features a lever assembly that includes an adjuster mechanism, allowing users to change the mechanical advantage of the lever. The reach of the lever can be adjusted relative to a handlebar without the need for tools, even while the vehicle is in operation. The master cylinder is designed with a reservoir that includes a bladder, which can be bled without reorienting the cylinder.
Another significant patent is for a bicycle disc brake that features a non-continuous spline surface. This design allows for a quick connection to or release from a wheel hub. The disc brake rotor includes an internally disposed splined surface with axially disposed internal splines that can be aligned with external splines of a wheel hub. This innovative design enables users to connect or release the rotor without any tools, enhancing convenience and efficiency.
Career Highlights
Throughout his career, Darren J Campbell has worked with prominent companies in the bicycle industry, including Hayes Disc Brakes, LLC and Hayes Bicycle Group Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in braking technology.
Collaborations
Campbell has collaborated with talented individuals such as Christopher S Jones and James J Dimsey. These partnerships have contributed to the successful development of his patented inventions.
Conclusion
Darren J Campbell's contributions to bicycle braking systems through his innovative patents demonstrate his commitment to improving safety and functionality in cycling. His work continues to influence the industry and enhance the riding experience for cyclists everywhere.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile