Company Filing History:
1 out of 181 
1 out of 832,880 Years Active: 1985-1990
Title: Pierre Barnel: Innovator in Circuit Breaker Technology
Introduction
Pierre Barnel is a notable inventor based in Echirolles, France. He has made significant contributions to the field of electrical engineering, particularly in the development of circuit breakers. With a total of two patents to his name, Barnel's innovations reflect his expertise and dedication to enhancing electrical safety and efficiency.
Latest Patents
Barnel's latest patents include a Limiting Circuit Breaker and a Molded Case Circuit Breaker with Cooling and Protection for the Static. The Limiting Circuit Breaker features a Thomson effect propelling device that facilitates the opening of contacts. This design includes a main contact bridge that is securely united to an operating rod, which is surrounded by an annular opening coil of the propelling device. The device also incorporates an opening disk that moves in relation to the rod, with springs positioned between the disk and an annular piston to return the disk to its rest position after the opening travel.
The Molded Case Circuit Breaker with Cooling and Protection for the Static is a multi-pole circuit breaker that includes a molded case and a static tripping unit. This invention utilizes an electronic device to process signals from current transformers associated with each pole. The electronic processing device is part of a subassembly housed in a sealed compartment within the molded case, which communicates with the ambient atmosphere through ventilation holes. This design ensures that the compartment is protected from circuit-breaking gases while being cooled by air circulation.
Career Highlights
Throughout his career, Pierre Barnel has worked with notable companies, including Merlin Gerin. His experience in the industry has allowed him to develop innovative solutions that address the challenges faced in electrical safety and performance.
Collaborations
Barnel has collaborated with esteemed colleagues such as Jean-Pierre Nebon and Francois Lindeperg. These partnerships have contributed to the advancement of his inventions and the overall progress in circuit breaker technology.
Conclusion
Pierre Barnel's contributions to circuit breaker technology through his patents demonstrate his commitment to innovation in electrical engineering. His work continues to influence the industry and enhance safety standards in electrical systems.