This inventor holds 6 USPTO granted patents. Top assignees: Lucas Industries Limited, Lucas Industries Public Limited Company. Active years: 1977-1987.
Location History:
- Solihull, EN (1977)
- West Midlands, GB (1981)
- Solihull, GB (1981 - 1987)
Company Filing History:


Years Active: 1977-1987
Title: Michael J Joby: Innovator in Fuel Control Systems
Introduction
Michael J Joby is a notable inventor based in Solihull, GB. He has made significant contributions to the field of fuel control systems, holding a total of 6 patents. His work focuses on developing innovative solutions that enhance the efficiency and reliability of fuel systems, particularly in gas turbine engines.
Latest Patents
One of Joby's latest patents is titled "Control for a Limiting Device." This invention involves a system for generating electrical signals to control a flow limiting device, specifically in fuel control apparatus. The system features duplicate signal generating circuits that respond to the operation of the fuel control apparatus. These circuits generate nominally identical output signals when operating conditions exceed predetermined limits. The output signals are supplied to the limiting device through respective control circuits, which are enabled by corresponding output signals from the other signal generating circuit. Additionally, a device is included to detect malfunctions in one of the signal generating circuits, ensuring the control circuit remains permanently enabled.
Another significant patent is "Fuel Systems for Gas Turbine Engines." This invention describes a gas turbine engine fuel control system that includes a main hydromechanical fuel flow control and an electrically operable valve for speed limitation. The valve is controlled by signals derived from an engine speed transducer. A phase advance compensation circuit is employed to enhance the phase of the transducer signal, which is then compared with a varying datum. The resulting error signal is processed through a non-linear amplifier, ensuring rapid speed limitation without stability issues.
Career Highlights
Throughout his career, Michael J Joby has worked with prominent companies, including Lucas Industries Limited and Lucas Industries Public Limited Company. His experience in these organizations has allowed him to refine his expertise in fuel control technologies and contribute to various innovative projects.
Collaborations
Joby has collaborated with notable colleagues such as Clive A Morris and Robert G Burrage. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the fuel control sector.
Conclusion
Michael J Joby is a distinguished inventor whose work in fuel control systems has made a lasting impact on the industry. His innovative patents and collaborations reflect his commitment to advancing technology in this critical field.