Company Filing History:
Years Active: 1993-1994
Title: Innovations by Anthony G. Ehrlich in Railway Signal Technology
Introduction
Anthony G. Ehrlich is a notable inventor based in Pittsburgh, PA, who has made significant contributions to railway signal technology. With a total of 3 patents to his name, Ehrlich's work focuses on improving the safety and efficiency of railway systems. His innovative designs have the potential to enhance the operational capabilities of railway vehicles.
Latest Patents
Ehrlich's latest patents include advancements in railway cab signal technology. One of his notable inventions is an improved railway cab signal transmitter designed to transmit cab signals onto a pair of rails for reception by railway vehicles. This invention features a tuning arrangement that resonates with the leaving end impedance bond at a preselected cab signal frequency. The cab signal is coded at this frequency, allowing the resonant circuit to function as a constant current signal source, which helps mitigate runby cab signal currents that could be received by following trains.
Another significant patent is the railway cab signal transmitter, which transmits cab signal and track signal currents to the rails. This invention includes circuitry that mitigates runby currents that are not fully shunted by the rail vehicle. By sensing the presence of a railway vehicle at the leaving end of a block, the cab signal voltage can be reduced, ensuring that lead vehicles receive the necessary cab signal value while limiting the signal for following trains.
Career Highlights
Anthony G. Ehrlich is currently associated with Union Switch & Signal, Inc., where he continues to develop innovative solutions for the railway industry. His work has been instrumental in enhancing the safety and reliability of railway operations.
Collaborations
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Conclusion
Anthony G. Ehrlich's contributions to railway signal technology demonstrate his commitment to innovation and safety in the railway industry. His patents reflect a deep understanding of the challenges faced in railway operations and provide effective solutions to enhance performance.