Company Filing History:
1 out of 2 
1 out of 1 
1 out of 1 Years Active: 1990
Title: Innovator Spotlight: Christian Doireau, Master of Vehicle Braking Systems
Introduction: Christian Doireau is a renowned inventor based in Paris, France, who has significantly contributed to the field of vehicle braking systems. With two patents to her name, her innovations offer advanced solutions for enhanced vehicle safety and reliability.
Latest Patents: Christian's most recent patents include a "Vehicle Park Braking System" and a "Spring Brake Unit and Its Application to a Braking System." The Vehicle Park Braking System features a disk brake mechanically connected to at least one vehicle wheel, working in conjunction with a brake caliper actuated by a threaded rod. This innovative design ensures that the braking system is compact yet powerful, making it particularly beneficial for railroad vehicles. The elastomeric brake linings used in this system provide a high friction coefficient, thus enhancing performance when the disk is stationary. On the other hand, the Spring Brake Unit operates with an axial actuating helical spring, which is released using a screw-nut system driven by an electric motor. This mechanism integrates a hydraulic master cylinder, optimizing auto braking features, including a built-in park brake capacity, which further improves vehicle safety.
Career Highlights: Throughout her career, Christian has made significant strides in the braking industry while working at prominent companies such as Wabco and Régie Autonome des Transports Parisiens (RATP). Her experience and expertise in engineering and design have greatly influenced her innovative approaches to braking systems in various vehicles.
Collaborations: Christian has collaborated with several talented engineers and professionals, including Michel Grenier and Daniel Cieplinski. Their combined knowledge and skills have undoubtedly enriched the projects they worked on together, leading to new advancements in vehicle braking technologies.
Conclusion: Christian Doireau’s work in the field of braking systems exemplifies how innovative thinking can lead to significant improvements in vehicle safety and efficiency. With her patents, she continues to inspire future generations of engineers and inventors. As the transportation industry evolves, her contributions remain pivotal in shaping safe and effective braking technologies.