Abstract: A manual override for a magnetically operated rotary valve (10) is provided. The valve includes a rotary member connected to an internal carrier (18) that carries a plurality of permanent magnets (20). A rotary drive carrier (22) also carries a plurality of permanent magnets (24) and is separated from the internal carrier (18) by a hermetic barrier member (42). At one end the barrier member (42) is affixed to a rotatable plate member (26) that is held stationary by a removable pin (64) that interconnects the plate member (26) and a support member (56) affixed to the valve body (12). Rotation limit means are constituted by a pin (40) on the driven portion of the valve which is received in a cooperating recess (36) in the plate member (26). If the valve member jams and there is not sufficient magnetically-induced torque to free the valve member then the override of the invention will come into play.

Abstract: A device for restricting flow of fluids and reducing noise that minimizes filling losses and muffles the vent noise, for example, while gravity filling cryogenic cylinders from a storage tank. The filling loss reducer part of this device is comprised of valve body, rotor, valve seat, o-ring, springs, and ball bearings. The noise muffler is comprised of a cylinder with tubes inside it. The loss reducer and muffler are assembled together to form the device. In operation, when filling cryogenic cylinders, for example, the device is screwed on to the vent valve of the cryogenic cylinder being filled. During the fill process, vent gases from the cryogenic cylinder pass through an orifice in the device. The size of the orifice can be changed to any one of the multiple discrete sizes by manually turning the rotor. This manipulation of the orifice size changes the pressure difference between the storage tank and the cryogenic cylinder.

Abstract: A needle valve including a deformable seal positioned between the distal end of the needle and a hard, mechanical seat between the needle and the valve housing. The deformable seal is able to seal around the movable needle but is protected from serious deformation by the hard mechanical seat that is located so as to prevent the needle from entering the deformable seat beyond a predetermined amount. Thus the deformable seal does not extrude due to the entrance of the needle and wear is reduced.

Abstract: A wash-basin faucet includes a valve housing enclosed within a casing, a ceramic valve received in a cylindrical chamber of the valve housing, and an operating handle operated to control the ceramic valve in regulating hot/cold water flow rate, wherein the valve has an inside annular flange, a water outlet for guiding water out of the cylindrical chamber, two water inlets for guiding hot/cold water into the cylindrical chamber, and locating recesses; the ceramic valve has a water seal ring mounted around a vertical peripheral wall thereof and stopped at the inside annular flange of the valve seal, two water intake tubes at the bottom respectively connected to either water inlet and sealed with a respective water seal ring, a plurality of bottom blocks spaced at the bottom and having a respective downward locating rod engaged into either locating recess on the bottom wall of the valve housing, a water output port disposed at the bottom between in the middle for guiding water from the water intake tubes out of

Abstract: A control valve well-suited for controlling the flow of particulate solids comprises a valve body having a flow passageway comprising inlet and outlet passages extending transversely to a slide chamber. A plug member having a flow orifice is mounted for movement within the slide chamber to seal the flow passageway when the flow orifice is out of register therewith and to connect the inlet and outlet passages in flow communication when registered therewith. One of the inlet passage and the flow orifice has a cross section including a tapered slot portion which terminates in an apex defining an angle of from about 45 to 90 degrees and an associated polygonal base portion or circular arc base portion subtending from 225 to about 270 degrees of arc. The other has a peripheral shape which includes a leading edge disposed substantially perpendicular to the direction of travel of the plug member.

Abstract: A vehicle anti-lock brake system control unit having a control valve for a housing with a control valve bore therein. The control valve includes a sleeve with a moveable armature, and a coil surrounding the sleeve for moving the armature from a normally open valve position to a normally closed valve position. The control valve also includes a valve body having an outer end attached to the sleeve and an inner end seated within the control valve bore of the housing. A pole piece concentrically located within the valve body defines the flow passage through the valve and is fixed to the valve body by a swaged joint, thereby eliminating a threaded joint. The control valve is likewise held to or within the control unit by a non-threaded connection thereby eliminating altogether threaded connections in the control unit.

Abstract: This refrigeration system expansion valve (10) includes a body (12) having an inlet (20) and an outlet (22) and a valve assembly (24) within the body (12). The valve assembly (24) includes a first port (28) communicating with the inlet (20) and a second, larger port (30) communicating with the outlet (22) and further includes a pin (32) having a first pin portion (34) received by the first port (28) and a second pin portion (36) received by the second port (30). A stepper motor (100) attached to the valve body (12) cooperates with an actuator assembly (60) attached to the pin (32) to induce longitudinal movement into the pin and thereby control refrigerant flow through the valve.

Abstract: A valve for regulating the flow of materials which are made up substantially of magnetic particles. The valve includes an outer housing and a core assembly secured within the housing to define an annular flow passage therebetween. The core assembly supports an improved magnet/coil assembly. The magnet/coil assembly includes a permanent magnet positioned between a pair of pole pieces and has an electromagnetic coil surrounding the permanent magnet. When energized, the coil establishes a counteracting magnetic field to cancel the magnetic field of the permanent magnet, which allows an open flow condition in the valve. An annular cavity is defined between the permanent magnet and the coil, which provides for a flux leakage path for the permanent magnet. During an open condition, the flux from the permanent magnet is shunted across the cavity to reduce the flux to be counteracted by the coil's magnetic field and therefore reduce the power consumed by the valve.

Abstract: A poppet valve has a flow restrictor downstream of the poppet which is externally adjustable by rotation of the poppet valve stem. The restrictor is in the form of a throttle ring threadedly mounted on a valve guide and the throttle ring has a diameter less than that of the valve port sealed by the poppet so that the assembly of the throttle ring is removable through the valve port while inadvertent removable is prevented by projecting cap screws on the throttle ring extending to a diameter greater than that of the valve port. The valve poppet is also provided with a contour area adjacent the seat which provide a restriction after initial opening movement of the poppet to minimize erosive wear on the poppet sealing surfaces when the pressure drop occurs adjacent these surfaces.

Abstract: A solenoid valve assembly comprising solenoid windings positioned around a central core and a movable valve element arranged on the axis of the windings, the windings being supported by a spindle having a boss adapted to be received in an opening formed in a body at one end of the spindle and a fluid fitting adapted to establish a connection with a pressure line at the opposite end of the spindle, and sealant structure for sealing the interior of the spindle from external contaminants including an encapsulation material surrounding the spindle and the windings.

Abstract: A solenoid valve in which an actuator is located above a valve seat and closure member. A valve stem which carries the closure member has a particle diverting collar thereon located above a valve stem guide in the valve housing. The valve housing has an annular, upwardly opening well therein encircling the valve stem below the collar, the well functioning as a particle collector.

Abstract: The present invention relates to an electrically controlled leakproof valve having a fluid feed channel and at least one channel for delivering said fluid, rotary displacement of a distributor plug in said valve being under the control of an actuator. The actuator comprises an axially pierced rotor through which the fluid from the feed channel flows without headloss, the actuator being connected to the valve body in leakproof manner without using dynamic sealing devices. The present leakproof valve is particularly suitable for use in corrosive environments, and in particular under cryogenic conditions.

Abstract: A pushing type motor-driven control valve device for opening and closing a valve by a reciprocating motion of a motor shaft driven by normally and reversely rotating a motor, said pushing type motor-driven control valve device comprises a valve shaft for driving the valve; a motor shaft for driving the valve shaft, said motor shaft being separated from and disposed coaxially with the valve shaft; a valve shaft spring for urging the valve shaft in a first direction of closing the valve; and a motor shaft spring for urging the motor shaft in a second direction of opening the valve; wherein a first pushing force applied on the motor shaft by the motor shaft spring is set to be smaller than a second pushing force applied on the valve shaft by the valve shaft spring.

Abstract: A high differential pressure control valve having a plurality of stages of high resistance ports forming a high resistance passage and one or more low resistance ports forming a low resistance passage in a cage. The number of stages of low resistance ports is smaller than that of the high resistance ports so that a fluid at the side of an inlet passage is introduced into the high resistance passage under a low open degree range and into both the low resistance passage and the high resistance passage under a medium and a high open degree ranges.

Abstract: An improved electromagnetically actuated valve is disclosed. The improved valve design includes a layer of structurally stable, non-magnetic material, preferably Kapton or Chrome, disposed intermediate the core element and the electromagnetic element of the valve, and a core element and electromagnetic element fabricated from a high electrical resistive iron material. The layer of non-magnetic structurally stable material and high resistance core element serve to eliminate the hysteresis effect in the magnetic force of the valve. The core element may also include radially extending or axially extending perforations through the core element. The axial and radial perforations serve to reduce the weight of the core design and the axial perforations serve to reduce the effect of the air spring created in the gap as the core element approaches the electromagnetic element during operation of the valve.

Abstract: A valve mechanism for an acoustic modulator which modulates air flowing tugh the acoustic modulator. The valve mechanism comprises a pair of cylindrical shaped members with each member having a plurality of elongated ports. The first cylindrical shaped member is held in a fixed position, while the second cylindrical shaped member is movable with respect to the first member. There is located at the lower end of the second cylindrical shaped member a drive coil which is positioned in a magnetic field such that when the coil is excited by an electrical sinusoidal input signal, movement of the second member occurs, partially aligning the ports of the second member with the ports of the first member which opens the valve mechanism. The sinusoidal input signal causes a frequency "doubling" to occur, that is the valve mechanism of the present invention completes an open-close-open-close cycle during each cycle of the sinusoidal input signal.

Abstract: A faucet includes a barrel received in the casing thereof and defining a water mixing chamber, a control switch received inside the barrel and moved by an operating lever to control hot/cold water flow rate, a socket fastened to the unitary bottom disk of the barrel to hold a hot water intake pipe, a cold water intake pipe, and a water outlet pipe, a movable nozzle detachably mounted on the casing and connected to the water outlet pipe by a bellows expansion tube, wherein a screw is threaded into a screw hole on the casing and engaged into a guide groove on the outside wall of the socket to limit the moving angle of the casing relative to the socket; a locating ring is fastened to the socket at the bottom by hooks to guide and smoothen the movement of the bellows expansion tube; a locating plate is mounted around the water outlet pipe and having two wing plates attached to the hot and cold water intake pipes to hold them in place.

Abstract: A gear pump includes a valve member adapted to engage a valve seat and close a control port and urged to an open position by a coil spring. In order to reduce cocking of the valve member relative to the valve seat when the valve member is closed, the end coil of the spring that engages the valve member is formed so as to be in non-parallel relation with the sealing surface of the valve seat when the spring is relaxed. As the spring is compressed during closure of the valve member, the end coil moves into parallelism with the sealing surface in order to enable the valve member to squarely engage the sealing surface.

Abstract: A solenoid valve has a first engaging hole at a lower end of a valve housing and a second engaging hole in an inner side of a closure. The valve structure permits the first end of a seal pipe to be pressed into the first engaging hole at the lower end of the valve housing and the second end of the seal pipe to be pressed into the second engaging hole in the inner side of the closure. The assembly can be performed in a single assembly action.

Abstract: A rotary magnetic valve including a cylindrical housing having flow passages in both ends and a magnetically-responsive valve closure assembly rotatively mounted therein. The valve closure assembly includes an armature mounted to rotate about the longitudinal axis of the housing and a shoe slideably disposed on each end of the armature. Each shoe is biased away from the armature and into contact with the inner end surfaces of the housing. A controller assembly is provided to rotate the valve closure assembly between a first position where flow through the valve is prevented and a second position where flow is permitted. The controller includes at least one permanent magnet for biasing the valve closure assembly into one of the positions and an electromagnet for rotating the valve closure assembly into the other position. A three-way valve is also possible.