Abstract: According to one embodiment a valve arrangement for a gas burner is provided that includes a manual gas valve with a manual actuator for opening or closing the gas flow, and an electromagnetic valve having a movable closure member which allows opening or closing a gas passage to the burner. The electromagnetic valve is arranged in the gas valve, with the manual actuator being coupled to a rotary flow regulating element, the manual actuator being configured in order to move the closure member of the electromagnetic valve, opening the gas passage, the manual gas valve including a reduced gas flow channel which puts the inlet conduit in fluid communication with the regulating element regardless of the position of the closure member.

Abstract: In an opening and closing valve of the invention, an operation dial and a valve body housed in a main body are connected by a rotary shaft, and a regulation member having a first fitting hole engaging with a fitter in the rotary shaft is disposed in a housing space of the main body. When a second fitting hole in the operation dial is released from the fitter in the closed state, the first fitting hole is fitted into the fitter to regulate the rotation, or when the second fitting hole is fitted into the fitter, the first fitting hole is released from the fitter to achieve the rotation.

Abstract: A gas valve for a cooking appliance is provided and includes a valve housing defining a valve chamber therein. A plug is disposed within the valve chamber. A valve stem interacts with the plug such that rotation of the valve stem correspondingly rotates the plug to selectively permit a flow of gas through the gas valve. The valve stem is axially translatable between a locked position wherein rotation thereof is inhibited and an unlocked position wherein rotation thereof is permitted. A first spring exerts a compressive force against the valve stem, toward the plug, to bias the valve stem into the locked position. A second spring exerts a compressive force against the plug in order to seat the plug within the valve chamber regardless whether the valve stem is in the locked or the unlocked position.

Abstract: An improved ceramic valve core with snapping functions for the cold/hot separation point having a valve casing, rotary driving pedestal, brake valve stem, rotating axle, base and ceramic valve set. A protruding portion is formed onto one end of the rotating axle and protruded outside of the flanged tube of the rotary driving pedestal. An elastomeric snapping clip is assembled between the reducing circular frame of the valve casing and the flanged tube. A snapping flange is formed from the snapping clip, such that elastic clamping effect is generated when the protruding portion is mated with the snapping flange under the action of the rotary driving pedestal. An elastic locator is set correspondingly to the snapping clip such that the snapping clip can be assembled in a limited state. Minimized components are required to form the ceramic valve core, thus lowering the cost, improving the control and extending service life.

Abstract: A valve actuator with manual lock is provided. The valve actuator with manual lock includes a locking button arrangement that is operably coupled to a shaft extending along an axis of rotation of a drive train. The locking button arrangement is selectively engageable with a housing of the valve actuator to lock the drive train in a selected orientation.

Abstract: A device for adjusting the flow-rate of a fluid, particularly medical oxygen and compressed gases in general, which comprises a valve body which defines an input duct for a low-pressure fluid which is connected to a rotary flow control element, which has an output port which can be arranged at the calibrated holes of a flow-rate adjustment disk; the calibrated holes are connected to an output duct; an actuation handwheel is also provided which is functionally associated with the rotary flow control element; the actuation handwheel comprises means for positioning the flow control element so that the output port is arranged at at least one of the calibrated holes.

Abstract: A motor-operated valve includes a driving unit including a rotor and a stator, a feed screw mechanism, and a valve main body unit. In order to remove backlash intrinsic in the feed screw mechanism, a coil spring that urges a valve body in a direction away from a valve seat is arranged in a valve chamber. A spring bearing that forms a housing, in which the coil spring is housed, in the valve chamber is provided. Therefore, the large valve chamber is secured in the valve main body unit and passing sound is reduced when a fluid passes the motor-operated valve. Contact surfaces of the valve body and the coil spring can be aligning curved surfaces that absorb a bend of the coil spring.

Abstract: A pipe coupling comprises a socket having a ball valve in which a through bore having one end that allows insertion of a plug is formed and a casing supporting the ball valve for rocking motion. The casing has a slot extending from its flank to the top. The slot has a flank opening and a top opening. The flank opening is wider than the top opening. A lock element is located for movement in the through bore of the ball valve. When the one end of the through bore of the ball valve is aligned with the flank opening, the lock element advances into the flank opening, thereby preventing the ball valve from rocking. When the lock element is pushed into the through bore of the ball valve by the plug, it is disengaged from the flank opening, whereupon the ball valve is allowed to rock.

Abstract: The invention is summarized as a method and apparatus for providing a memory function for an air economizing fluid pressure circuit. A latchable or detented valve is used to control an air circuit that defaults to permit the generation of vacuum pressure, but is also cable of ceasing the generation of vacuum pressure generation to air economize. The invention may also include blow off capability for the air circuit.

Abstract: A drain assembly for a fluid collection container includes a housing attached to the container and defining a cavity therewithin. A stop is located within the cavity and is fixed relative to the housing. A switch having a closure member formed thereon is mounted within the cavity for rotary movement relative to the housing. In a disclosed embodiment the switch has a tab extending through the housing to facilitate rotation of the switch from outside the housing. A flexible, resilient tube in fluid communication with the interior of the fluid collection container has a portion disposed within the cavity and extending between the stop and the closure member of the switch. The tube is configured so that fluid discharged from the lower end of the tube is discharged through an opening in a lower portion of the housing. When the switch is rotated in one direction, the tube is compressed between the stop and the closure member, thereby preventing fluid flow through the tube.

Abstract: A nitride semiconductor device including a light emitting device comprises a n-type region of one or more nitride semiconductor layers having n-type conductivity, a p-type region of one or more nitride semiconductor layers having p-type conductivity and an active layer between the n-type region and the p-type region. In such devices, there is provided with a super lattice layer comprising first layers and second layers which are nitride semiconductors having a different composition respectively. The super lattice structure makes working current and voltage of the device lowered, resulting in realization of more efficient devices.

Abstract: The present invention is a control arrangement that includes a detent assist assembly for assisting a detent arrangement in holding a control device in a predetermined position. Additionally, the detent assist assembly serves as an actuator for a control valve operative with the control device. Further, the detent assist assembly provides tactile feedback to an operator through the control device. The present invention is a simple and efficient device for providing a detent assist with tactile feedback.

Abstract: The present invention relates to a connection collar for a duct ventilation system and furnace. The connection collar is comprised of a self-guiding and self-locking damper valve, which when positioned becomes part of a completely sealable joint when used with preferably flexible insulated heating pipe. With the adjusting apparatus and locking apparatus completely contained within the connection collar the connection collar forms a vapor barrier when used with the preferable pipe and or furnace. The self-locking and self-guiding apparatus comprises of a spring biassing arrangement and a cone shaped receiver equipped with catch teeth which when engaged mate with teeth circumferentially positioned on the damper apparatus.

Abstract: A fuel control device having a passage therethrough for interconnecting a fuel source with a main burner and having a poppet valve arrangement that is directly manually operated for opening and closing the passage so as to control the flow of fuel from the source to the main burner, the poppet valve arrangement having a poppet valve member that is moved relative to its valve seat upon the manual manipulation of a selector of the control device. The selector locks with the control device in the "off" position and the control device has a long and gradual cam surface to permit the selector to be moved to its locked "off" position without excessive "feel".