Company Filing History:
Years Active: 1986-1990
Title: Wilfred L Farnham: Innovator in Railroad Safety Technology
Introduction
Wilfred L Farnham is a notable inventor based in Blue Springs, MO (US). He has made significant contributions to railroad safety technology, holding 2 patents that enhance the safety of grade crossings. His innovative designs focus on ensuring that warning systems function reliably when trains approach crossings.
Latest Patents
Farnham's latest patents include a "Crossing Control Unit" and a "Processing System for Grade Crossing Warning." The Crossing Control Unit utilizes a fail-safe solid-state crossing controller to energize warning lights at a railroad grade crossing at a predetermined flash rate when a train approaches. This system ensures that the warning lamps operate alternately in synchronism with a specific flash rate signal, maintaining safety during train crossings.
The Processing System for Grade Crossing Warning detects a railroad train by responding to changes in effective track impedance caused by the moving shunt. A constant current AC signal is applied to the track, and the resulting voltage changes are analyzed by a microcomputer. This system determines whether to activate warning devices at the crossing, ensuring a failsafe operation through regular checks and self-monitoring.
Career Highlights
Throughout his career, Farnham has worked with companies such as Sab Harmon Industries, Inc. and Harmon Industries, Inc. His experience in these organizations has contributed to his expertise in developing innovative safety solutions for the railroad industry.
Collaborations
Farnham has collaborated with notable individuals in his field, including Forrest Henry Ballinger and Lynn R Garrison. These partnerships have likely influenced his work and contributed to the development of his patented technologies.
Conclusion
Wilfred L Farnham's contributions to railroad safety through his innovative patents demonstrate his commitment to enhancing public safety. His work continues to impact the industry positively, ensuring safer crossings for all.