Location History:
- Baiersdorf, DE (1977)
- Effeltrich, DE (1988 - 1998)
Company Filing History:
6 out of 30,066 
2 out of 461 Years Active: 1977-1998
Title: Innovator Hans Lettau: Advancements in Nuclear Reactor Technology
Introduction: Hans Lettau, an accomplished inventor based in Effeltrich, Germany, holds a remarkable portfolio of 8 patents. His work focuses primarily on enhancing nuclear reactor technology, showcasing his innovative spirit and engineering expertise.
Latest Patents: Among his notable inventions, Hans Lettau has developed advanced solutions for nuclear reactor fuel assemblies. One of his latest patents includes a nuclear reactor fuel assembly spacer, which features sheet metal webs that intersect to form grid meshes. This design incorporates a leaf spring that projects from a web, allowing for the secure holding of a rod within the grid mesh. The leaf spring's design also addresses fretting issues in nuclear reactors by incorporating a perforation that narrows toward the attached sheet metal web.
Another significant contribution is a nuclear reactor fuel assembly with a supporting coolant tube, which eliminates the need for supporting rods. In this patent, the upper end of the coolant tube penetrates the fuel assembly head and is securely supported, while the lower end is fastened to the fuel assembly foot. This innovative supporting skeleton relieves stress on the assembly and improves the overall design efficiency.
Career Highlights: Throughout his career, Hans Lettau has worked with prominent companies in the energy sector, including Siemens Aktiengesellschaft and Kraftwerk Union Aktiengesellschaft. His experience in these organizations has significantly influenced his inventive processes, allowing him to contribute to advancements in nuclear technology.
Collaborations: Hans Lettau has collaborated with esteemed colleagues such as Hans-Joachim Lippert and Gunther Lill, further expanding his network and fostering innovation through teamwork in the realm of nuclear engineering.
Conclusion: Hans Lettau's contributions to nuclear reactor technology through his 8 patents exemplify his commitment to innovation and excellence. His inventive spirit has led to significant advancements in the industry, positioning him as a valuable figure in the field of nuclear energy. As technology continues to evolve, Hans Lettau's work remains crucial in shaping the future of safe and efficient nuclear reactor systems.