This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignees: Commissariat a L'energie Atomique Et Aux Energies Alternatives, Renault Automation. Active years: 1991-2011.
Company Filing History:
1 out of 8,819 
1 out of 15 Years Active: 1991-2011
Title: Innovations of Jean-Marie David
Introduction
Jean-Marie David is a notable inventor based in Villeneuve d'Ascq, France. He has made significant contributions to the field of engineering, particularly in the development of precision mechanisms. With a total of 2 patents to his name, David's work showcases his expertise and innovative spirit.
Latest Patents
One of his latest patents is the Precision Ball Joint. This joint comprises a ball held between two seats of the members to be joined. It further includes fittings bound to the members, connected through an intermediate jointed ring. A spring maintains contact between the ball and the seats, while a rim of the ring retains the ball in case of disjunction. This design provides large accuracy in the position of the center of rotation, ensuring the cohesion of the assembly.
Another significant invention is the Machine for Measuring by Coordinates. This machine features one to n measuring axes, comprising a piece support and at least one carriage moving on a measuring axis. A sensing device equips the carriage, and each axis includes a carrying structure and a metrological reference structure associated with position sensors. These sensors determine the position of the reference structure in relation to the measuring axis, enhancing measurement precision.
Career Highlights
Throughout his career, Jean-Marie David has worked with prominent companies such as Renault Automation and the Commissariat à l'Énergie Atomique et aux Énergies Alternatives. His experience in these organizations has contributed to his development as an inventor and innovator.
Collaborations
David has collaborated with notable coworkers, including Gaël Paquignon and Jean-Paul Perin. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Jean-Marie David's contributions to engineering through his innovative patents reflect his dedication to precision and functionality. His work continues to influence the field, showcasing the importance of creativity in technological advancements.