This inventor holds 5 USPTO granted patents. Top assignees: Pitney Bowes Inc., Other. Active years: 1976-1979.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- New Canaan, CT (US) (1978)
- Norwalk, CT (US) (1976 - 1979)
Company Filing History:

Years Active: 1976-1979
Title: Franklin J Calderazzo: Innovator in Bicycle Braking Systems
Introduction
Franklin J Calderazzo is a notable inventor based in Norwalk, CT (US). He has made significant contributions to the field of bicycle technology, particularly in braking systems. With a total of 5 patents to his name, Calderazzo's innovations have enhanced the safety and functionality of multi-speed bicycles.
Latest Patents
One of Calderazzo's latest patents is the "Back-pedal brake operator and braking system for multi-speed bicycles." This invention allows the brake operating action to be achieved by turning the foot pedals rearwardly from any position. The braking operation does not utilize the sprocket chain, ensuring that the brakes are automatically released without any 'lock-up' effect when the driver resumes pedaling forward. This system can be integrated as original equipment by bicycle manufacturers or retrofitted by bicycle shops on existing bicycles. Additionally, it allows for adjustable automatic proportioning of braking efforts between the rear and front wheels.
Another significant patent is the "Torque reaction operated bicycle braking system and mounting structure." This invention features a selectively operable rear-wheel brake that actuates the front brake through rear-wheel braking torque. The system is designed to amplify force, ensuring that if the front-wheel brake torque reduces rear-wheel brake torque, the spring mechanism will automatically adjust the front-wheel brake effort.
Career Highlights
Calderazzo has worked with notable companies, including Pitney Bowes Inc. His experience in the industry has contributed to his innovative approach to bicycle braking systems.
Collaborations
Throughout his career, Calderazzo has collaborated with professionals such as John G O'Brien and Arnold Fassman. These partnerships have likely influenced his inventive processes and outcomes.
Conclusion
Franklin J Calderazzo's contributions to bicycle technology, particularly in braking systems, demonstrate his innovative spirit and commitment to enhancing safety in cycling. His patents reflect a deep understanding of mechanical systems and user needs, making him a significant figure in the field of bicycle innovation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile