Location History:
- Newfield, ME (US) (1992)
- Perry Hall, MD (US) (2009 - 2016)
Company Filing History:
2 out of 8 
2 out of 3 
1 out of 3,389 
Years Active: 1992-2016
Title: The Innovative Contributions of Robert Louis Stone
Introduction
Robert Louis Stone is a notable inventor based in Perry Hall, Maryland, with a remarkable portfolio of seven patents. His work primarily focuses on enhancing electrical safety and improving mail sortation systems. Stone's inventions reflect his commitment to innovation and practicality in everyday applications.
Latest Patents
One of Stone's latest patents is the Electrical Enclosure Voltage Protection System. This invention is an electrical isolation apparatus designed to automatically interrupt main power before it connects to the main electrical panel whenever the main disconnect switch is turned off. The system includes a method for retrofitting existing electrical panel enclosures with an electrical isolation box (EIB). The EIB is equipped with a power contactor and an auxiliary relay that enhances safety by preventing high voltage conditions in the main power receptacle after the disconnect is actuated.
Another significant invention is the Mail Carrier Sequencer, a mail sortation system capable of processing mail from random order to delivery point sequence (DPS) in a single sortation pass. This system features multiple sortation assemblies, including open-topped receptacles and linearly-translating conveyors, which work together to efficiently sort mail into the desired sequence.
Career Highlights
Throughout his career, Robert Louis Stone has worked with various companies, including Sick Inc. His innovative contributions have made a significant impact in the fields of electrical engineering and mail processing.
Collaborations
Stone has collaborated with notable individuals such as Mohammed Islam and Young K Yoo, further enhancing the development of his inventions.
Conclusion
Robert Louis Stone's inventive spirit and dedication to improving safety and efficiency in electrical systems and mail sortation processes exemplify the essence of innovation. His contributions continue to influence these industries positively.