Location History:
- Dover, PA (US) (1985)
- Liverpool, NY (US) (1987)
Company Filing History:
1 out of 2,686 
2 out of 832,966 Years Active: 1985-1987
Title: The Innovative Mind of Lloyd A Johnson from Liverpool, NY
Introduction
Lloyd A Johnson, a brilliant inventor based in Liverpool, NY, has made significant contributions to the field of diagnostic systems within refrigeration and air conditioning technologies. With a total of three patents to his name, Johnson's work focuses on ensuring efficiency and safety in temperature control systems by detecting potential sensor faults.
Latest Patents
Among his latest innovations is a patented diagnostic system for detecting faulty sensors in liquid chiller air. This system expertly monitors the evaporator refrigerant pressure and the leaving chilled liquid temperature in an air conditioning system. By comparing the outputs of two sensors, it calculates the equivalent evaporator temperature and subtracts it from the chilled liquid temperature, enabling the detection of faults. If the difference falls outside a predetermined normal range, the system notifies the operating personnel and shuts down the compressor as a precautionary measure.
Another notable patent of Johnson's focuses on a similar principle within refrigeration systems. This diagnostic system monitors various operating variables, utilizing relationships between sensor outputs to identify faults. It effectively highlights discrepancies, such as when a condenser pressure sensor should indicate higher pressure than an evaporator pressure sensor. A zero or negative result from this comparison signals a defective sensor, prompting a warning message for immediate attention.
Career Highlights
Throughout his career, Lloyd A Johnson has made remarkable strides in the HVAC industry. He has worked with respected companies like BorgWarner Inc., where he honed his skills and contributed to innovative projects. His patents reflect a deep understanding of sensor technology and a commitment to improving operational safety in air conditioning and refrigeration.
Collaborations
In his pursuit of innovation, Johnson has collaborated with notable colleagues, including John C Hansen and Harold B Ginder. Their combined expertise has likely enriched Johnson's inventions, fostering an environment of creativity and advancement in their field.
Conclusion
Lloyd A Johnson's inventive spirit and proactive approach to detecting faulty sensors in refrigeration and air conditioning systems underscore the importance of innovation in ensuring efficient and safe operational practices. His patents not only enhance current technologies but also pave the way for future advancements in environmental control systems.