Company Filing History:
3 out of 762 
1 out of 832,912 Years Active: 1980-1995
Title: The Innovative Contributions of Robert B Northrop
Introduction
Robert B Northrop, an accomplished inventor based in Chaplin, Connecticut, has made significant strides in the field of electrical engineering with a total of four patents to his name. His inventive spirit shines through his latest patents, which focus on advanced fault detection methods for high voltage cable installations.
Latest Patents
One of Northrop's notable inventions is a cable fault detection system utilizing a high voltage alternating polarity direct current (DC). This test apparatus is designed for high voltage cable installations and features a high AC voltage source with a frequency that matches the intended carrying frequency of the cable. The system employs a switch that alternates between positive and negative polarities of the DC voltage, while isolating the AC and DC voltage sources. The resulting alternating polarity DC-biased AC voltage is injected into the cable, helping to identify incipient faults effectively.
Another significant patent involves a method and apparatus for detecting and locating faults within insulated power lines. This innovative approach applies an excitation voltage at one end of the power line, with the transmitted signal pulse filtered to eliminate frequencies below the excitation voltage and its harmonics. The enhanced signal is amplified and processed through a band pass filter to eliminate high-frequency noise, allowing for accurate identification of partial discharges in the power line. The data is stored digitally, enabling precise peak identification, which is crucial for fault location.
Career Highlights
Throughout his career, Robert B Northrop has had the opportunity to work with esteemed institutions such as the University of Connecticut, where he has likely contributed to both research and practical applications of his inventions.
Collaborations
Northrop has collaborated with notable individuals in his field, including Matthew S Mashikian and Gerard L Cote, further enhancing the advancements in electrical engineering through the pooling of expertise and ideas.
Conclusion
Robert B Northrop's contributions to innovation, particularly in high voltage fault detection technology, reflect his dedication and skill as an inventor. His patents not only improve safety and reliability in electrical systems but also contribute to advancements in engineering practices, showcasing the profound impact of his work.