Company Filing History:
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Years Active: 1985-1991
Title: The Innovative Contributions of Josef Feigel in Motor Technology
Introduction: Josef Feigel is a notable inventor based in Landshut, Germany, who has made significant advancements in the field of motor technology. With six patents to his name, Feigel's innovations have paved the way for improved efficiency and automation in electrical motors, particularly in brushless direct-current motors.
Latest Patents: Feigel's latest patents showcase his expertise and ingenuity in designing advanced motor control systems. One of his patents is titled "Circuit for and method of controlling 4-phase brushless DC motors." This invention presents a control circuit that bipolarly manages the stator of a 4-phase brushless DC motor. The design involves four semiconductor switches connected in a ring circuit, allowing for two control sequences. The first sequence permits four switching events per revolution, activating only two switches at a time, while the second allows for eight switching events per revolution with alternating activation of two and three switches simultaneously.
Another notable patent is for an "Electronically commutated collectorless direct-current motor." This invention reveals a collectorless motor with a self-supporting drum winding and a cylindrical plastic body that is concentrically aligned with the drum winding. The body is equipped with recesses containing eyehooks for connecting the winding ends to a circuit board. This design innovation significantly automates the process of connecting the winding ends, enhancing the efficiency of motor assembly.
Career Highlights: Josef Feigel has worked at prominent companies, including Standard Elektrik Lorenz AG and Standard Elektrik Lorenz Aktiengesellschaft. His contributions to these organizations have furthered the development of advanced motor technologies, cementing his reputation within the industry.
Collaborations: Throughout his career, Feigel has collaborated with talented professionals such as Klaus Pfendler and Rudolf Glasauer. Their combined expertise has played a crucial role in the successful development of motor technology innovations.
Conclusion: Josef Feigel's inventive mind and dedication to advancing motor technology have resulted in impactful patents that continue to influence the field. His work exemplifies how innovation can drive progress in engineering and technology, making him a key figure in the realm of electrical motors.