The invention relates to a control valve system for use with a gas grill, and more particularly to a fuel shut off device that is attached to the fuel supply to turn it off, if the integrated timing device is allowed to accrue time equal to the preset amount of time set. A multi-segment tactile dial enables a user to feel the dial and set the appropriate time increment without having to look at the dial.

A mechanical valve assembly for the control of a gas flow to a gas appliance. The mechanical valve assembly includes at least one input knob movably connected to a housing, a shaft assembly connected to at least one input knob, and a manually-operated valve located inside the housing and in between the inlet port and the outlet port. The manually-operated valve is mechanically connected to the shaft assembly, and the manually-operated valve is configured for opening and closing a gas flow between the inlet port and the outlet port.

A mechanical valve assembly for the control of a gas flow to a gas appliance, the mechanical valve assembly comprising: a housing; a gas inlet port associated with the housing; a gas outlet port associated with the housing; a timer-controlled valve operable to open and close a gas flow between the inlet port and outlet port; and a manually-operated emergency shut-off valve positioned between the inlet port and the outlet port, ahead of the timer-controlled valve relative to a direction of the gas flow through the mechanical valve assembly.

A valve member driving device capable of bidirectional movement includes: a main body with two gas chambers, a first gas-inlet opening, a first gas-inlet channel, a second gas-inlet opening, and a second gas-inlet channel; a first piston rod with a first flow passage; a second piston rod with a second flow passage; a first guide rod extending into the first flow passage at one end and having a gas socket and a gas hole in communication with the gas socket; a second guide rod extending into the second flow passage at one end and having a gas-guiding flow passage; a valve cylinder fixedly provided on the first piston rod and having a valve-cylinder gas chamber, an advance channel, a withdrawal channel, and a valve-cylinder piston rod; and a valve member fixedly provided on the valve-cylinder piston rod.

A valve member driving device capable of bidirectional movement includes: a main body with two gas chambers, a first gas-inlet opening, a first gas-inlet channel, a second gas-inlet opening, and a second gas-inlet channel; a first piston rod with a first flow passage; a second piston rod with a second flow passage; a first guide rod extending into the first flow passage at one end and having a gas socket and a gas hole in communication with the gas socket; a second guide rod extending into the second flow passage at one end and having a gas-guiding flow passage; a valve cylinder fixedly provided on the first piston rod and having a valve-cylinder gas chamber, an advance channel, a withdrawal channel, and a valve-cylinder piston rod; and a valve member fixedly provided on the valve-cylinder piston rod.

The present invention relates to systems and apparatus for controlling actuation and flow/pressure simultaneously over a timed cycle. In particular, the present invention relates to a gas/fluids actuator for readily controlling gas/fluids flow. More specifically, the present invention relates to novel improvements in timed gas/fluids flow actuation pressure/flow control and cessation thereof including: a timer including: a valve, an actuator element for controlling flow through the valve, and a timer for readily activating and deactivating the actuator.

A mechanical valve assembly for the control of a gas flow to a gas appliance. The mechanical valve assembly includes at least one input knob movably connected to a housing, a shaft assembly connected to at least one input knob, and a manually-operated valve located inside the housing and in between the inlet port and the outlet port. The manually-operated valve is mechanically connected to the shaft assembly, and the manually-operated valve is configured for opening and closing a gas flow between the inlet port and the outlet port.

A mechanical valve assembly for the control of a gas flow to a gas appliance, the mechanical valve assembly comprising: a housing; a gas inlet port associated with the housing; a gas outlet port associated with the housing; a timer-controlled valve operable to open and close a gas flow between the inlet port and outlet port; and a manually-operated emergency shut-off valve positioned between the inlet port and the outlet port, ahead of the timer-controlled valve relative to a direction of the gas flow through the mechanical valve assembly.

A gas flow-timer assembly for use with a barbecue gas grill having at least one burner valve with a first burner controller to heat at least one corresponding grill burner. The first burner controller is disposable onto a first burner valve. The gas flow-timer assembly also includes a gas flow-timer manifold disposable onto a gas input line from the gas source. The gas flow-timer manifold is also disposable onto a gas output line connected to the first burner valve. The gas flow-timer manifold further includes a gas flow-timer to regulate the delivery of gas from the gas flow-timer manifold, through the gas output line, to the first burner valve for a selected duration of time.

An improved gas valve including a timer includes: a valve body including a direction indicating mark; a timer arranged in an interior of the valve body; a rotary knob connected to the timer and including a protrusion, the rotary knob being provided, in a circumferentially arranged manner, with a closure region, a full opening region at one side of the closure region, and a time counting region at an opposite side of the closure region; a stop device mounted to the valve body, the stop device being subjected to an elastic effect to reciprocally move between a stop position and a passage position in such a way as to be normally set at the stop position as being acted upon by the elastic effect and located on a rotating path of the protrusion of the rotary knob.