Apparatus for the measurement and control of gas flow
AssigneeKeystone Machine and Tool Co.
InventorJon H. Haas
Life of this patent
Estimating the term…
Abstract
An electronic gas regulator is connected to a gas cylinder or other vessel to automatically measure and control the flow of gas to a desired application. Control and set up is accomplished through microprocessor based electronics, switches, sensors, encoders, indicators and electronic numeric display. Sensors, microprocessors and other electronics are thus provided in a single common apparatus to monitor and accurately dispense gas for a predetermined operation.
Claims5
An apparatus for the measurement and control of gas flow into a liquid process system comprising a housing having a chamber therein and an inlet valve in said chamber for connection to a source of gas under pressure, a member reciprocable within said chamber and engageable with said inlet valve, means for subjecting said reciprocable member to a vacuum to actuate said member to open said inlet valve, a gas flow metering and sensing assembly in said housing having a flow passage therethrough and having an inlet connected to said chamber and further having an outlet, said flow passage having therein a metering valve at said inlet and a gas flow sensing means downstream of said metering valve, and a digital controller motor connected to said metering valve and responsive to said gas flow sensing means to regulate the position of said metering valve and thereby vary the gas flow therethrough to said outlet into a liquid process system, programmable electronic controller means on said housing and connected to said motor for regulating gas flow, said controller further comprises indicator means responsive to loss of vacuum, level of gas in the supply source and tilt detection of the gas source.
Dependencies are inferred from the claim text.