Abstract: An air valve comprises a casing, a valve body driving assembly and a valve body. The casing comprises a chamber, a vent hole, and at least one switching hole communicating with the chamber. The valve body driving assembly is disposed in the chamber, and comprises a pusher, a shape memory metal wire in a linkage relationship with the pusher, and two conductive members disposed in the casing and located at two ends of the shape memory metal wire respectively, the pusher travels a uniaxial displacement stroke due to a temporary change of the shape memory metal wire. The valve body is disposed in the chamber and faces the switching hole, when the pusher travels the uniaxial displacement stroke, the valve body is driven to rotate a central angle relative to the switching hole to change a ventilation state between the switching hole and the chamber.

Abstract: The invention discloses a vacuum juicer, and belongs to the field of juicers. The vacuum juicer comprises a vacuum cover assembly, a stirring cup assembly and a main unit, wherein the vacuum cover assembly comprises a vacuum cover and a cam rotating around the vacuum cover, and a sealant is arranged on the cam; the stirring cup assembly comprises a stirring cup holder and a stirring cup, and a movable valve is arranged on the stirring cup and slides up and down to control opening and closing of a stirring cup air hole; a vacuum pump in the main unit is in sealed connection with the internal space of the vacuum cover. According to the vacuum juicer, the interior of the stirring cup can be vacuumized before and during fruit juice stirring, the stirring cup can be taken out to be carried and stored in the vacuum state for a period of time, and the phenomenon that fruit juice makes contact with air and consequentially is oxidized is avoided during this period of time.

Abstract: A pressure-regulating valve comprises: a core assembly, a slidable member, and a biasing member. The core assembly comprises an intake section, a diverter section and an output section. The slidable member has a collar and at least one internal flow path terminating at first and second openings in its inner surface. If the slidable member is in a first position, fluid can pass through the valve. If the slidable member is in a second position, fluid cannot pass through the valve.

Abstract: A variable displacement compressor and a displacement control valve for use in such compressors, varies the displacement of the compressor by closing or opening a control path between a discharge chamber or a suction chamber and a crank chamber. The valve includes a valve body for closing or opening the control path; a control rod; and a rod passage receiving the control rod. A first end of the control rod is affixed to the valve body, and the control rod extends from the valve body to a solenoid for urging the valve body to close or open the control path. The control rod is tapered, such that a first cross-sectional area of the control rod proximate to the valve body is greater than a second cross-sectional area of the control rod proximate to the solenoid to close or open the control path.

Abstract: An electric valve actuator with a failsafe device for a rotary type valve that is coupled to a drive shaft screw by means of a clutch. A cam cylinder is secured to the drive shaft screw and is also connected to the stem of the valve. A cam follower is slidably mounted upon the drive shaft and traces a cam profile form in the cylinder as the cylinder turns. A series of torsion springs are connected to the cylinder so that the springs are wound into a loaded condition as the cam cylinder moves from a valve closed position to a cam opening position. In the event of a power failure while the valve is opened, the clutch disengages the motor from the drive shaft and the springs unwind quickly to move the cam cylinder toward the valve closing position. At this time the motion of the cylinder is controlled by the cam follower which regulates the valve closing sequence.

Abstract: A gas stream monitor shall be provided that facilitates the adjustment of the reseat flow. The gas stream monitor consists of a gas-tight casing whose interior is equipped with a seat for a reseat body that is movable inside the casing and is kept in open position against the flow direction by weight and/or spring force, in which the flow cross-section, surface area of the reseat body and the forces are determined in such a manner that gas stream monitor leaves its open position at a defined value of the reseat flow and is moved towards the seat of the casing, so that the gas conduit is closed in the shut position, and has outside the casing at least one manipulator to adjust the spring pre-tension and/or the stroke of the reseat body. The gas stream monitor serves to automatically shut off gas conduits upon the occurrence of an inadmissible flow increase due to, e.g. a damaged gas conduit or a defective consumer.

Abstract: A valve hamper assembly for a glassware machine having a camming surface and a movable follower surface engaging the camming surface. A movable valve is operatively connected to the follower surface. A movement device is operatively connected to the follower surface for moving the follower surface along the camming surface to cause movement of the valve.

Abstract: A control valve having a pneumatic actuator and positioner to move the stem of a globe-type valve. The actuator has a spring-opposed piston that moves a chassis including a cam with an inclined plane. The inclination of the cam plane can be varied to precisely displace the valve stem. The amount of displacement selected, together with a specific valve plug contour, yield a specific maximum flow coefficient of the valve at that setting. The setting can be changed to accommodate moderate to very low fluid flows. A numerical display on the actuator may be used to register the flow coefficient selected.

Abstract: A self closing valve assembly is disclosed. A retainer member provides support for a spring for biasing the valve actuating cam members as well as providing a valve seat. The component parts are housed in a cartridge for easy placement in a faucet as well as for conversion of other faucets to the self closing type. Opening of the valve is accomplished by only a rotary motion of the valve stem without an axial handle motion.

Abstract: A control valve with a three part, all plastic housing having an access opening through which a slide extends for operating the plastic valve element toward and away from the valve seat, the plastic valve element having an integrally molded plastic diaphragm clamped between parts of the all plastic housing and traversing the entire access opening, the slide being operated by a rotor, there being ramp shaped surfaces on confronting faces of the rotor and slide, and an adjustment nut for locating the rotor, slide and valve element relative to the valve seat.

Abstract: A trip valve including a valve body provided with a valve seat and further including a movable trip lever having a cam defining a first support surface thereof. A valve stem is movably disposed within the valve body and includes a valve attached to one end thereof for movement between a closed seat engaged position and an open seat disengaged position. A trip pin is attached to the valve stem and is movable therewith. The trip pin is supported upon the first support surface of the trip lever. A force generating device is operably connected to the valve stem for urging the valve into its seat engaged position. The cam includes a first portion movable between a first position spaced from the trip pin and a second position whereat the trip pin is directly supported upon the first portion of the cam. The first portion of the cam provides a force for urging the valve into its open seat disengaged position.