Company Filing History:
Years Active: 1981
Title: Mark A Jefferis: Innovator in Engine Control Technologies
Introduction
Mark A Jefferis is a notable inventor based in Webster Groves, MO (US). He has made significant contributions to the field of internal combustion engine control systems. With a total of 2 patents to his name, Jefferis has developed innovative technologies that enhance engine performance and efficiency.
Latest Patents
One of Jefferis's latest patents is the "Engine Automatic Idle Speed Control Apparatus." This apparatus is designed to automatically control the idle speed of an internal combustion automobile engine. It utilizes a sensor to detect the operating speed of the engine and generates an electrical signal representative of that speed. The system also senses the movement of the carburetor throttle valve, generating a second electrical signal when the valve closes, indicating that the engine is idling. A controller processes these signals to adjust the throttle valve to maintain a preselected idle speed based on a derived transfer function.
Another significant patent is the "Fuel Control System Development Apparatus." This apparatus is intended for developing and testing control systems for internal combustion engines. It features a housing that can be visually observed by the operator, with electrical circuitry installed within. The system includes a wiring harness that connects various sensors and electromechanical devices. A programmable memory allows for the storage of information related to different aspects of the system, which can be visually monitored during operation to assess performance under real driving conditions.
Career Highlights
Mark A Jefferis is currently employed at ACF Industries, Incorporated, where he continues to innovate in the field of engine control technologies. His work has contributed to advancements in automotive engineering, particularly in enhancing the efficiency and reliability of internal combustion engines.
Collaborations
Jefferis has collaborated with notable colleagues such as Paul M Meyer and Richard D Doerr. Their combined expertise has fostered a productive environment for innovation and development in engine control systems.
Conclusion
Mark A Jefferis stands out as a key figure in the realm of engine control technologies. His patents reflect a commitment to improving automotive performance and efficiency. Through his work at ACF Industries, he continues to push the boundaries of innovation in this critical field.