This inventor holds 3 USPTO granted patents. Top assignees: Mine Safety Appliances Company, Other. Active years: 1994-2000.
Company Filing History:
2 out of 242 
1 out of 834,350 Years Active: 1994-2000
Title: The Innovations of Charles H Etheridge
Introduction
Charles H Etheridge is a notable inventor based in Pittsburgh, PA. He has made significant contributions to the field of pump control and air sampling technologies. With a total of 3 patents, Etheridge's work reflects his commitment to enhancing safety and efficiency in various applications.
Latest Patents
One of Etheridge's latest patents is a "System and method for pump control and fault detection." This invention provides a comprehensive system for controlling and detecting faults in a pump system used in gas detection devices. The system includes a power source, a switch, and a pump motor, which operates based on the state of the switch. Additionally, it features regeneration circuitry that redirects energy produced from the pump motor's momentum back to the motor. The system is designed to optimize performance and reliability in gas detection applications.
Another significant patent is the "Multiple port personal air sampling apparatus." This innovative apparatus allows for simultaneous ambient air sampling through multiple ports. It incorporates a regulator that enables compatibility with various personal sampling pumps. By positioning the regulator near the sampling ports, Etheridge's design ensures independent vacuum flow rate control for each port, enhancing the efficiency of air sampling processes.
Career Highlights
Throughout his career, Etheridge has worked with prominent companies, including Mine Safety Appliances Company. His experience in these organizations has contributed to his expertise in developing innovative solutions for safety and environmental monitoring.
Collaborations
Etheridge has collaborated with notable individuals in his field, including Clayton J Bossart and Gregory G Imblum. These partnerships have likely fostered the exchange of ideas and advancements in technology.
Conclusion
Charles H Etheridge's contributions to pump control and air sampling technologies demonstrate his innovative spirit and dedication to improving safety and efficiency. His patents reflect a deep understanding of engineering principles and a commitment to addressing real-world challenges.