A controller for controlling a valve is configured to record a time taken to drive the valve from a closed position to an open position, to determine a drive time required to drive the valve to a desired position based on the recorded time, and to drive the valve for the determined drive time.

A shut-off valve (100) comprises a first chamber (1) and a second chamber (2) in fluid communication, an opening (3) connecting the first chamber (1) and the second chamber (2). The valve (100) comprises adjustment means (41, 42, 43) that can be switched between a closing and an opening configuration. The adjustment means (41, 42, 43) comprise: a first adjustment portion (41), a second adjustment portion (42) connected to the first adjustment portion (41), elastic return means (5) arranged at least at the first adjustment portion (41), an intermediate adjustment portion (43), connected to the first adjustment portion (41). The valve (100) further comprises a closing element (6) configured to be sealingly arranged at the opening (3) and to interrupt fluid communication between the first chamber (1) and the second chamber (2), and a switch (7) activatable by said second adjustment portion (42), connected to the closing element (6) and configured to prevent or allow translation of said closing element (6).

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.

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.

A timed gas cut-off device, which comprises a device body, comprising an inlet gas channel, an outlet gas channel and a valve rod channel; the inlet and outlet gas channels are respectively in communication with the valve rod channel, an accommodation chamber with a through hole communicating the accommodation chamber with the valve rod channel; a valve rod device, comprising a rod body slidably cooperating in the valve rod channel, a shim connected to the rod body and moves in synchronization with the rod body to open or close the valve rod channel; a free end of the rod body extends through the through hole and disposed inside the accommodation chamber; an elastic soft sealing piece, sealingly connected to the through hole, sleeved on the free end of the rod body; a timer with a drive piece connected inside the accommodation chamber for timed gas use and improves the safety.

The claimed invention relates to a filtering device for purifying a liquid, intended for softening and purifying tap water and other liquids for domestic use. A device for purifying a liquid, having an inlet channel and an outlet channel, consists of at least two tanks, one for a softening agent and one for a regenerating solution, and a control mechanism including a housing, which consists of at least three parts which form chambers and liquid-conducting cavities, at least two pistons, which are located in the chambers and which are linked by means of a cam mechanism to an engine, a saline valve, and a discharge valve; the control mechanism is designed such that the pistons can move simultaneously in the chambers in opposite directions, at the same time alternately shutting off the liquid-conducting cavities in the housing; at least two liquid-conducting cavities are formed between the indicated portions of the housing, and at least one cavity is formed between the closest portion of the housing to the upper portion of the tank for the softening agent and the upper portion of the tank for the softening agent. The technical result consists in increasing the reliability and simplifying the design of a device for purifying a liquid, and in decreasing the weight of the device for purifying a liquid.

A fluid control valve includes: a sleeve in a bottomed cylindrical shape, including an inlet, communication ports, an inner peripheral surface, and an inflow annular groove recessed from the inner peripheral surface in a region facing the inlet; a spool slidably disposed on the inner peripheral surface in the sleeve to open and close the communication ports; a C-shaped leaf spring formed by bending a leaf spring into an annular shape with two ends facing each other to form a notch and disposed in the inflow annular groove capable of being contracted in diameter to open and close the inlet; and a restricting part provided on the sleeve for restricting diameter contraction of the C-shaped leaf spring beyond a predetermined inner diameter and for restricting a position of the notch in a region away from the inlet.

A fluid control valve includes: a sleeve in a bottomed cylindrical shape, including an inlet, communication ports, an inner peripheral surface, and an inflow annular groove recessed from the inner peripheral surface in a region facing the inlet; a spool slidably disposed on the inner peripheral surface in the sleeve to open and close the communication ports; a C-shaped leaf spring formed by bending a leaf spring into an annular shape with two ends facing each other to form a notch and disposed in the inflow annular groove capable of being contracted in diameter to open and close the inlet; and a restricting part provided on the sleeve for restricting diameter contraction of the C-shaped leaf spring beyond a predetermined inner diameter and for restricting a position of the notch in a region away from the inlet.

A timer applicable to various types of fuel gas valve and a fuel gas valve including the timer are provided. The timer includes a rotary knob, a gear-set main body, a guide plate including a guide tube, a push axle, and an elastic element. The timer is combinable with a valve body to form a fuel gas valve. With the guide plate including the guide tube in which the push axle is disposed, a push bar of the timer may push the push axle to accurately drive a valve plug assembly arranged in the valve body to open and shut down a flow passage of the valve body between an entry opening and an exit opening. This allows one single timer to be applicable to various types of valve body and a fuel gas valve including the timer enables use of fuel gas in a safe and correctly timing manner.