Company Filing History:
2 out of 4 
1 out of 832,718 Years Active: 1977-1989
Title: LeRoy Dry Ginn: Innovator in Gas Flow Measurement and Control
Introduction
LeRoy Dry Ginn is a notable inventor based in San Leandro, CA (US). He has made significant contributions to the field of gas flow measurement and control, holding a total of 3 patents. His innovative approaches have advanced the technology used in various pneumatic systems.
Latest Patents
One of his latest patents is titled "Variable gas volume flow measuring and control methods and apparatus." This invention provides a method and apparatus for measuring gas flow volume in systems where the amount of gas flowing can vary. It references the total pressure upstream of a variable area orifice to produce a signal representative of the differential pressure between the total pressure and the static pressure downstream of the orifice. The system is designed to read out the gas flow volume occurring in the duct based on these signals.
Another significant patent is the "Pneumatic temperature reset differential pressure controller." This invention interlocks a room temperature signal from a thermostat with the velocity set point in a variable air volume control system. It ensures that the air flow into a room is maintained in proportion to the thermostat's demands, regardless of variations in static pressure in the duct. The controller is constructed to provide automatic compensation for control offset produced by changes in static air pressure, ensuring efficient operation.
Career Highlights
LeRoy Dry Ginn has worked with Universal Pneumatic Controls, Inc., where he applied his expertise in pneumatic systems. His work has contributed to the development of advanced control systems that enhance the efficiency and effectiveness of air flow management.
Collaborations
Throughout his career, LeRoy has collaborated with notable individuals such as LeRoyce Sloe Ginn and Dalny Travaglio. These collaborations have fostered innovation and the sharing of ideas in the field of gas flow measurement and control.
Conclusion
LeRoy Dry Ginn's contributions to gas flow measurement and control have made a lasting impact on the industry. His innovative patents and career achievements reflect his dedication to advancing technology in pneumatic systems.