This inventor holds 2 USPTO granted patents. Top assignees: Erwin Sick Gmbh Optik-Elektronik, Harsco Corporation. Active years: 1988-1994.
Company Filing History:
Years Active: 1988-1994
Title: The Innovations of Darrell E Johnson
Introduction
Darrell E Johnson is an accomplished inventor based in Fairmont, MN (US). He holds 2 patents that showcase his expertise in engineering and innovation. His work has significantly contributed to advancements in switch supervision and rail grinding technologies.
Latest Patents
One of Johnson's latest patents is a method for supervising a switch. This invention involves generating and transmitting a switch supervision signal to the switch contact, which is then detected and compared with the emitted signal. The use of a coded signal allows for effective supervision of the switch. Another notable patent is for a rail grinder vehicle. This vehicle features a series of connections between grinders and a chassis frame, enabling independent operation of the grinders. The design ensures stability and allows for precise positioning of the grinding face relative to the rail.
Career Highlights
Throughout his career, Johnson has worked with notable companies such as Harsco Corporation and Erwin Sick GmbH Optik-Elektronik. His experience in these organizations has further honed his skills and contributed to his innovative capabilities.
Collaborations
Johnson has collaborated with several professionals in his field, including Richard J Gitter and Bernard C Lancette. These partnerships have likely enriched his work and led to further advancements in his projects.
Conclusion
Darrell E Johnson's contributions to the fields of switch supervision and rail grinding demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving engineering solutions and enhancing operational efficiency.