A regulator means for automatically shutting off gas flow in a pipeline during pressure reducing failure is provided. The regulator means includes a body member, a pressure reducing valve assembly, a switching valve assembly, a timing device for a predetermined time period of gas flow, a transmission plate for controlling switching valve assembly by the timing device, and an automatic overflow control assembly. The body member is provided with a pressure reducing valve chamber, a timing device chamber and a thin wall located between the pressure reducing valve chamber and the timing device chamber. The timing device chamber receives the timing device, and the pressure reducing valve chamber receives the pressure reducing valve assembly. The switching valve assembly is arranged at the outlet port of the gas flow passage. The switching valve assembly consists of a spindle, a leakage-proof seal ring, and a spiral spring. The transmission plate can control the left and right displacements of the spindle of the switching valve assembly to make the switching valve carry out the opening and closing functions and can signal the user to learn the occurrence of a pressure reducing failure. An up-stream automatic gas leakage over flow control assembly is located at the inlet port of the body member. The automatic gas leakage overflow control assembly consists of a steel bead for blocking gas passage automatically and a release button. During gas leaking and overflowing, the steel bead automatically blocks the gas flow through the pipeline. When the user wants to resume gas flow, he passes down the release button displacing the steel bead from its blockage position, and then the gas flow in the pipeline is restored.

Regulator means for automatically shutting the gas pipeline passage off during pressure reducing failure

Pressure regulating mechanically operable valves intended primarily for use as pressure regulating shut off valves are disclosed. The valves utilize a simple piston assembly operative between a valve open position and a valve closed position responsive to a spring biasing the assembly toward the open position against an opposite force proportional to the outlet pressure. The piston assembly may have only a single seal to seal the assembly against leakage with a mechanical shut off mechanism operative on only a 180 degree rotation thereof being cooperatively disposed with respect to the piston assembly so as to not require any additional seals. An electrically operable unlatching means is provided to close the valve upon receipt of a pulse from a battery or other electrical system, exemplary circuits, including a unique moisture sensing system are enclosed.

Pressure regulating mechanically and electrically operable shut off valves

In a carbonated beverage dispensing apparatus including a dispensing valve, carbon dioxide gas is introduced into a liquid to be dispensed through the dispensing valve, and a temperature sensor is arranged to sense the temperature of the liquid, either in a carbonation tank or in the path through which the liquid is fed to the carbonation tank. A control, responsive to the temperature sensor, controls a valve which regulates the pressure at which carbon dioxide is introduced into the liquid. The carbon dioxide pressure increases with increasing liquid temperature, so that the carbonation level in the liquid dispensed through the dispensing valve is maintained at a substantially constant level. Both mechanical and electronic controls are disclosed.

Carbonated beverage dispensing apparatus

A stepper-motor gas valve control is disclosed that includes a main diaphragm in a chamber that controllably displaces a valve relative to an opening in response to changes in pressure, to adjust fuel flow through the valve. A servo-regulator diaphragm is provided to regulate flow to the main diaphragm, to thereby control the rate of fuel flow. A stepper motor is configured to move in a stepwise manner to displace the servo-regulator diaphragm, to control fluid flow to the main diaphragm. A controller mounted on the stepper-motor regulated gas valve control receives and converts an input control signal from a heating system to a reference value between 0 and 5 volts, and selects a corresponding motor step value. The control responsively moves the stepper-motor in a step wise manner to displace the servo-regulator diaphragm and thereby regulates the rate of fuel flow through the valve.

Gas valve and method of control

Stepper motor gas valve and method of control

A remote-controlled pressure regulator comprises a stepping motor, which is operatively connected to a tiltable arm engaging a connecting rod, so as to adjust loading of a pressure-regulating unit.

Remote-controlled pressure regulator

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Remote-controlled pressure regulator