Company Filing History:
2 out of 20 
1 out of 1 Years Active: 1977-1982
Title: Ewald Hartmann: Innovator in Mechanical Engineering
Introduction
Ewald Hartmann is a notable inventor based in Cologne, Germany. He has made significant contributions to the field of mechanical engineering, particularly through his innovative designs and patents. With a total of two patents to his name, Hartmann has demonstrated his expertise and creativity in developing practical solutions for various engineering challenges.
Latest Patents
Hartmann's latest patents include a "Wear Resistant Wheel for Endless Track" and a "Diaphragm Valve Arrangement." The wear-resistant wheel is designed for endless track vehicles, providing guidance for track guiding teeth while incorporating wear-protecting rings to enhance durability. The diaphragm valve arrangement features a pair of clamping members that define a gap and an interior space, with a diaphragm that spans the interior space and includes a region of lesser thickness for improved functionality.
Career Highlights
Throughout his career, Ewald Hartmann has worked with several prominent companies, including Clouth Gummiwerke Aktiengesellschaft and Fonderie Et Ateliers De Mersch S.A. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
One of Hartmann's notable collaborators is Hendrik De Bliek. Their partnership has likely fostered the exchange of ideas and expertise, further enhancing their contributions to the field.
Conclusion
Ewald Hartmann's work as an inventor showcases his dedication to innovation in mechanical engineering. His patents reflect a commitment to solving practical problems and improving existing technologies. Hartmann's contributions continue to influence the industry and inspire future inventors.