This inventor holds 5 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Abb Technology Ag, Abb Research Ltd., Abb Schweiz Ag. Active years: 2007-2018.
Company Filing History:
3 out of 862 
1 out of 996 
1 out of 2,901 
Years Active: 2007-2018
Title: Edgar Dullni: Innovator in Medium Voltage Circuit Breakers
Introduction
Edgar Dullni is a notable inventor based in Ratingen, Germany. He has made significant contributions to the field of electrical engineering, particularly in the development of medium voltage circuit breakers. With a total of 5 patents to his name, Dullni's work has had a substantial impact on high-pressure electrical environments.
Latest Patents
Dullni's latest patents include a medium voltage circuit breaker designed for use in high-pressure environments. This innovative device features a vacuum interrupter with a fixed contact side and a movable contact side, which is operated by a movable rod. The design incorporates a drive within a pressure-tight insulating housing, ensuring that electrical terminals are integrated into the pressure housing. Additionally, the inner volumes of the insulating housing and a further pressure-tight housing are separated by a bellows, allowing for the mechanical coupling of the movable rod to the drive. Another significant patent involves a switching device that controls the connection and disconnection of a load with respect to an alternating voltage feeder. This device utilizes two mechanical switches connected in series, each equipped with a bypass branch that can block or conduct current, synchronized with the feeder's current and voltage.
Career Highlights
Throughout his career, Edgar Dullni has worked with prominent companies such as ABB Technology AG and ABB Research Ltd. His experience in these organizations has allowed him to refine his expertise in electrical engineering and innovation.
Collaborations
Dullni has collaborated with notable colleagues, including Hans Begge and Oliver Claus. Their combined efforts have contributed to advancements in the field of electrical engineering.
Conclusion
Edgar Dullni's contributions to the development of medium voltage circuit breakers and switching devices highlight his innovative spirit and technical expertise. His patents reflect a commitment to enhancing safety and efficiency in high-pressure electrical environments.