Abstract: A vacuum manipulator, comprising an elongated body with two segments of longitudinal ducts one of which opens at one end for connection to a suction source and the other one of which is adapted to be fitted with a suction nozzle, openings communicating the duct segments with a longitudinal guide channel, a spool valve mounted for longitudinal sliding in the guide channel, the bottom of the channel being flat with the face of the spool valve adjacent to the bottom having three contact zones for elevating the face relative to the bottom, one of the contact zones being central and being formed by a support wall which defines a generally enclosed area, the other two of the zones being located at opposite ends of the spool valve, a piston having an endless wall defining an enclosed space and being mounted for sliding engagement with the bottom of the guide channel for selective communication with the openings, a spring operable with the piston to urge the endless wall of the piston in generally sealing engagement

Abstract: An improved slide plate diverter valve having a manifold block and a backing plate with a linearly reciprocable slide plate sandwiched and clamped therebetween is provided with side rails between the manifold block and backing plate along opposite lengthwise sides of the slide plate secured by dowel pins to each thereof to rigidify the manifold block and backing plate against relative movement, eliminating any tendency of the backing plate to move relative to the manifold block in response to sliding actuation of the slide plate.

Abstract: A distributor body comprises in its contact surface connection grooves which can communicate in different ways, according to the angular position of the body, with intake and outlet conduits. Rotation of the body is controlled by a motor. A stack of elastic washers acting upon a pusher ensures a suitable pressure of the contact surface against a homologous contact surface.

Abstract: A fluid flow control valve is provided with a seal comprising a thin metallic film backed by a resiliently deformable body. The seal is mounted on a closure part which may be either the valve stem or the valve seat. The thin film and deformable body are deformed so as to conform to the surface the metallic film seals against as the valve is closed. As the valve is opened, the deformable body returns to its initial state thus returning the thin film to its initial state.

Abstract: In a high-vacuum valve whose valve body is brought in and out of contact with a valve seat, a metal diaphragm facing the valve seat defines a valve seat, an actuating mechanism to open and close the valve body is provided on the reverse side of the diaphragm outside the valve chamber, and a spring is provided between the actuating mechanism and diaphragm in a position corresponding to the position of the valve seat. This high-vacuum valve eliminates the stagnation of gas in its passage, reduces the surface area of its passage, and precludes the detrimental effect of the powder of abraded metal.

Abstract: A closed center gerotor device wherein the sealing between the commutator for the device and the surrounding body is provided by a wave spring biased "O" ring sealed pressure operated piston.

Abstract: A slide valve comprising: a valve body having two axially aligned openings provided with means for connection in a duct; a drive rod; a valve member; and a backing member; wherein the valve member includes a hollow opening out to both faces of the valve member and fitted with a piston movable between a simple abutment at one end and a shoulder in the hollow at an opposite end, the piston bearing against said shoulder via sealing means, a return spring urging said piston towards said simple abutment, said piston including, at its simple abutment end, means for co-operating with a sloping ramp of said drive rod such that during closure of the valve, the piston is thrust against said shoulder of the hollow.

Abstract: A cantilever leaf spring (1) attached to a fixed frame or movable member of a gas isolator is acted on by a bias spring (2) and an additional similar, but not identical, bias spring (12).

Abstract: A vacuum valve having a compliable selector plate.

Abstract: An in-line valve is employed in a droplet generator for sharply cutting off the flow of liquid and preventing drips from forming at the outlet of the generator. In order to effect valve action, the interior surface of a droplet-forming orifice plate is machined optically flat. A movable valve plate having openings therein, corresponding to the pattern of orifices in the orifice plate, is positioned in abutting relationship to the interior surface of the orifice plate; and its interface surface is likewise machined optically flat so that the interface forms a liquid seal. When the valve plate is moved to a position where openings therein are in registry with the orifices, a droplet stream is generated. However, when the valve plate is moved in shear translation, registration between the openings therein and the orifices no longer exists and the flow of fluid therebetween is quickly stopped.

Abstract: An orifice fitting has a slide valve seal strip of increased sealing area. The orifice fitting has a body with an upper chamber and a lower chamber, separated by a slot. A plate carrier will move an orifice plate from the upper chamber, through the lower chamber, and down into a flow passage below the lower chamber. A slide valve carrier will open and close the slot between the upper and lower chambers. A seal strip locates on the slide valve carrier for sealing against the seat of the slot. The seal strip has on opposite sides a pair of outward extending flanges. Each flange overlies and contacts a shoulder formed on the upper side of the slide valve carrier. The seal strip has a lower section that locates within the shoulders.

Abstract: An electrically actuated valve for incremental fluid flow rate control is disclosed. The valve is comprised of a valve body having an interior with a planar outlet surface against which a rectilinear valve element is slidingly operated. The valve body includes an inlet orifice and an outlet orifice in the planar outlet surface for fluid flow through the valve body. The valve element has an orifice therethrough controlling flow through the outlet orifice in accordance with the position of the valve element, which is linearly actuated by a rotary stepper motor.

Abstract: Locking device to fit a mixing valve for hot and cold water into the body of a tap, in particular a locking nut bearing on the cover of the body of the mixing valve by interposing suitable elastic means to compensate eventual plays and distribute the locking load.

Abstract: A rotary diverter valve for use in diverting fluid wherein the fluid port intersections between the valve body and rotary element are all at a flat planar interface to provide a flat, zero clearance, metal to metal contact. Live bolting is provided to adjust the contact pressure through a spherical bearing arrangement as will tolerate axial misalignment due to nonparallel loading to eliminate any need for critical torquing and widen manufacturing tolerances and reduce costs. When utilizing a replaceable transition plate between the rotary element and the valve body, wear on costly components is eliminated, and the valve is easy to maintain and repair.

Abstract: A hard seated globe valve assembly for use in servicing high and low temperature fluids. The valve includes a moveable stem attached at one end to a tapered plug of hard material. An equally hard seat having a tapered surface is mounted for mating engagement with the plug when the valve is closed. The seat is located in a partition that separates the globe-shaped body into two chambers having fluid inlet-outlet orifices. An annular ring is mounted between the bearing end of the stem and the plug so that the plug is resiliently engaged in the seat when the valve is closed. It has been found that hard seated valves tend to be difficult to open or lose their sealing abilities when servicing extreme temperature fluids due to the expansion and contraction when the valve is heated and cooled. The resilience of the annular ring prevents this problem by permitting the plug to adjust during expansion and contraction, thus making it easier to open the valve after cooling and precluding loss of sealing during heating.

Abstract: A sink handle for use in a water faucet, which may be operated at a minimum use of manual force is disclosed. The sink handle generally includes a valve spindle contained within a body, with the spindle being rotatable by a fluid flow. The sink handle also includes a seat bearing adjacent to said valve spindle and a cushion upon which said spindle is rotatable. A bonnet, which may be opened and closed, permits a flow of a fluid therethrough by opening a movable closure element. The bonnet is rotatable as a result of the rotation of the valve spindle. In preferred embodiments of the invention, O-rings function as the cushion. Additionally, a seat bearing may be impregnated in polytetraflouroethylene.

Abstract: A sealing mechanism capable of use in a valve subject to extended temperatures and pressures. The sealing mechanism comprises a seal ring positioned within a groove circumferential with respect to the passageway of the valve. A convex seating portion of the seal ring extends through an annular opening in the groove, for sealing engagement with a closure member. Shoulder portions, which extend from the sides of the seating portion, abut the sidewalls of the groove. The seal ring is compressed in width within the groove, so that a resilient side-sealing force is imparted to the contact of the shoulder portions with the sidewalls of the groove. Substantially leak proof sealing is achieved, which is maintained even in the event of high temperature conditions or fire.

Abstract: A homogeneous fluid sampling valve mounted into a high pressure or low pressure flow line or the like wherein homogeneous fluid is flowing therein, preferably the body of the valve mounted perpendicular to the flow with a small portion of the valve body extending into the flow line. There is further provided a bore through a conduit in the valve body for transporting fluid from the main flow line through the valve body and exterior to the valve. The valve body is further provided with an extended stem wherein there is rotatably mounted a thickened collar member having a spout in fluid communication with the bore when the collar member is placed in the open position and in fluid tight engagement with the valve body when the collar member is rotated to the closed position by a stationary sealing wafer. The collar member is maintained in fluid-tight engagement against the end of the valve body against the bias of a spring member engaged on the stem member.

Abstract: A valve assembly for insertion into a valve body. The valve assembly includes a valve insert adapted to be positioned axially within the valve body. The valve insert has a longitudinally extending fluid passageway therethrough including an inlet opening at one end in communication with a source of fluid under pressure and an outlet opening at the other end remote from the fluid source and includes a seal disposed between the valve insert and the valve body to only permit flow of the fluid through the fluid passageway. In addition, the valve insert includes a sealing surface extending about the outlet opening. The valve assembly also includes a valve stem adapted to be in axially positioned alignment with the valve insert.

Abstract: A spring loaded valve for use with a cryostat insert is provided for selectively directing liquid cryogen to the bottom or top of a supercoolable vessel. The spring loaded valve situated at the tip of the insert extends into a housing in the top of the supercoolable vessel. A slidably mounted sleeve extends inside a cryogen fill tube. The sleeve is spring loaded and when the valve is inserted in the housing the fill tube covers apertures in the sleeve allowing fluid to flow from the fill tube through the end of the housing past the valve head. When the spring loaded valve is partially retracted from the housing the holes in the sleeve are uncovered and liquid can flow from the fill tube to a passageway in the housing extending to the bottom of the supercoolable vessel. The valve closes the aperture leading to the upper portion of the vessel.

Abstract: The essential part of an adjustable choke for compressed air and other fluids is made up of two relatively turning disks of which one has a calibrated channel in it running round the axis of the disks. By relative turning of the disks the fluid is caused to flow along different lengths of the channel in keeping with the desired choking action. The two disks are mounted within a housing, with a spring keeping them pressed together. The housing has a bell-like cover in which one of the disks is keyed and sealed at the disk's outer edge with the spring between it and the top of the cover in a chamber. The other disk is mounted on a base of the housing. There is a central pillar in the housing that joins the cover to the base and contains a duct by which is supplied into the chamber through a hole in the one disk, into the channel, through the other disk and then out through the base of the housing. The cover may be turned for turning the one disk in relation to the other.

Abstract: A slide gate valve assembly is provided wherein resilient means exert positive pressure to force a solid slide gate against the periphery of an aperture to establish a tight seal for retaining dry bulk particulate material in a container. Cam means are provided in the assembly to release the positive pressure on the side gate which may thereupon be removed from the aperture to dump the contents from the container.

Abstract: A slide valve for controlling fluid flow, useful especially but not exclusively where high precision and high quality performance are required, as in scientific or medical apparatus and equipment. A valve body, preferably of plastic material, has a channel for receiving a valve slide assembly, the channel providing two surfaces parallel to and spaced from each other. The flow ports to be controlled open onto these two surfaces. The valve slide is an assembly of three members in overlying relation like a sandwich, the outer members or layers being of low-friction plastic material such as "Teflon," the inner or center member being of resilient compressible material (e.g., urethane, or silicone rubber) dimensioned to be under compression when the valve slide is in its channel, so that the resilience of the central layer of the slide serves to keep the outer layers constantly pressed firmly against the body surfaces on which they slide. Ports are formed in the slide assembly.

Abstract: A valve comprises a hollow body having an inlet and an outlet, a seat ring in the outlet provides a face adapted to engage a gate, a closure mounted for movement relative to the seat ring and including a carrier having a passage therethrough in which are slidably disposed a lipped gate disc adapted to engage the seat face and block the outlet when the valve is in closed position, a pressure spring pressing the gate disc against the seat face when the valve is in closed position, and a ball transferring the reaction of the spring to the body.

Abstract: A vacuum control valve comprising a body having a valve surface with a plurality of valve ports extending through the body from such surface, a soft resilient valve member having a control surface slidable along the valve surface and formed with passage means for selectively establishing communication with the valve ports, a movable carriage for receiving and supporting the valve member, and means for moving the carriage along a path substantially parallel with the valve surface, the soft resilient valve member having a soft resilient compressible rear portion formed integrally with such valve member on the opposite side thereof from the control surface, the valve member being confined between the carriage and the valve surface with such soft resilient compressible rear portion in a compressed condition for exerting resilient pressure between the control surface of the valve member and the valve surface of the body, the soft resilient compressible rear portion comprising a pattern of fins alternating with rec

Abstract: At least one ball valve segment is located within a partial valve cage mounted within a tank. The cage is integral with a valve housing removably mounted within a tank mounting flange. The housing includes an inclined sealing surface which the ball valve segment engages in closed position. A lading outlet chamber is located below the inclined sealing surface. An operating shaft is inclined with respect to the outlet chamber. Inclined openings are provided in the valve housing and in the outlet chamber through which the operating shaft passes. The operating shaft includes an eccentric head which is located within a non-round slot in the ball valve segment. Rotation of the operating shaft rotates the eccentric head which drives the valve segment between open and closed positions. Preferably a pair of ball valve segments located approximately 180.degree. apart are connected with supports or ribs. The valve segment which closes the opening into the discharge chamber is larger.

Abstract: A sealing arrangement specifically for shut off devices is disclosed. A shut off device has two annular metallic sealing members of which one is a rigid body and the other is a thin-walled elastically deformable body. One of the sealing members features a considerable large hardness. The other sealing member comprises a coating of a soft metal, filling all irregularities of the surface thereof. Upon closing of the shut off device the surfaces of the two sealing members rub against each other, whereby the coating of soft metal is rubbed off until portions thereof remain in the recesses of the metal forming the substrate of this sealing member. This assures an excellent sealing of the shut off device.

Abstract: A valve in which a member is movable within the valve body so as to open and close access to a passage within the valve, and, when the movable member is closing access to the passage within the valve, a sealing member is engaged between the movable member and an end wall of the passage. The sealing member is made of a flexible but non-resilient material, and elasticity is imparted by means of a resilient member which causes the non-resilient material to be forced into engagement with the end wall. Limits are set for relative movement of the end wall and the movable member to prevent damaging flexure of the non-resilient material.

Abstract: Generally disclosed is a filtration system including a pair of filters having a pair of diverter valves connected at the input and output thereof for controlling the flow of viscous fluids through one of the other of the filters. More specifically, there is disclosed a diverter valve for controlling viscous fluid flow at the input and output of the filters. The diverter valve is a slide valve which provides a fluid flow path which has no isolated flow areas subject to stagnation. The diverter valve is constructed of a slide plate sandwiched between a manifold block and a backing plate. The slide plate defines a passageway which mates with ports provided in a sealing surface of the manifold block so that a continuous flow path is provided between inlet and outlet of the diverter valve. Sealing pressure is maintained between the slide plate and the manifold block by a plurality of tie bolts urging the slide plate into contact with the manifold block.

Abstract: A reversing valve construction having a housing provided with a chamber carrying a movable valve member therein that controls ports of a valve seat of the housing through the relative position of a cavity of the valve member relative to the ports, a one piece flexible sealing skirt being carried by the valve member and extending outwardly therefrom in a cantilevered manner adjacent the valve seat so as adapted to be exposed to fluid pressure in the chamber that will act directly thereon and cause the flexible skirt to flex and engage the valve seat in a manner to tend to sealingly conform to the contour of the valve seat and thereby seal the cavity to the valve seat while permitting sliding movement therebetween. A spring in the housing acts on the flexible skirt to urge the same toward the valve seat.

Abstract: A system incorporated with an internal combustion engine for recycling engine exhaust fumes back into the engine for a more thorough burning before final discharge; the system including a one way valve unit installed along a line between the muffler and the engine intake manifold.

Abstract: In order to manufacture a casting nozzle plate assembly, e.g., a sliding closure of a slide plate and collector nozzle, without having to further machine the working surface of one assembly a mold is arranged on a trued slab. A refractory concrete is poured into the mold while the mold is vibrated. The concrete is allowed to harden before being separated from trued slab. The resulting assembly has a smooth work (e.g., sliding) surface for contact with another element.

Abstract: A reversing valve construction having a housing provided with a chamber carrying a movable valve member therein that controls ports of a valve seat of the housing through the relative position of a cavity of the valve member relative to the ports, a one-piece flexible sealing skirt being carried by the valve member and extending outwardly therefrom in a cantilevered manner adjacent the valve seat so as adapted to be exposed to fluid pressure in the chamber that will act directly thereon and cause the flexible skirt to flex and engage the valve seat in a manner to tend to sealingly conform to the contour of the valve seat and thereby seal the cavity to the valve seat while permitting sliding movement therebetween. A spring in the housing acts on the flexible skirt to urge the same toward the valve seat.

Abstract: A reversing valve construction having a housing provided with a chamber carrying a movable piston-like valve member therein that controls ports of a valve seat of the housing through the relative position of a cavity of the valve member relative to the ports. The ports comprise first, second and third ports that all face in the same direction at the valve seat and are disposed in spaced apart and straight line relation and the cavity faces the ports and bridges the first and second ports while exposing the chamber to the third port when the valve member is in one position thereof and bridges the second and third ports while exposing the chamber to the first port when the valve member is in another position thereof. A flexible sealing annular member is disposed between the valve member and the valve seat and surrounding the cavity to be movable relative thereto to seal the cavity of the valve member to the valve seat while permitting sliding movement therebetween.

Abstract: A flow control valve for controlling liquid flow, for example, water flow in a vehicle heating circuit, has a ceramic obturator plate which slides sealingly relative to a fixed sealing plate, the two plates having openings the degree of overlap of which determines the valve throughflow. A bowed leafspring maintains the slidable obturator plate in sealing contact with a mating face of the sealing plate.

Abstract: A reversing valve construction having a housing provided with a chamber carrying a movable piston-like valve member therein that controls ports of a valve seat of the housing through the relative position of a passage of the valve member relative to the ports. A one-piece flexible sealing skirt is carried by the valve member and extends outwardly therefrom in a cantilevered manner adjacent the valve seat means so as to be adapted to be exposed to fluid pressure in the chamber that will act directly thereon and cause the flexible skirt to flex and engage the valve seat means in a manner to tend to sealingly conform to the contour of the valve seat means and thereby seal the passage means of the valve member to the valve seat means while permitting sliding movement therebetween.

Abstract: A diaphragm-actuated slide valve where spring force is utilized to urge the moving slide valve element against the stationary valve element. To obtain a good seal at the valving ports with a minimum of spring force, the moving slide valve element is made to present a convex contact face to the stationary valve element at the port region of the moving valve element. At the same time, a clamping connection of the fluid tube to the moving slide valve element is obtained. The moving slide valve element is in the form of an apertured, initially flat block. The fluid tube passes through an aperture in an initially curved spring clamp plate provided with clamping serrations in the tube-receiving aperture, the tube engaging in a counterbore in the valve block at its port. Clamping screws engage through opposite parts of the clamp plate and threadedly engage the valve block at opposite spaced locations relative to the tube.

Abstract: A valve assembly including a housing having an inlet passage in communication with an outlet passage with valve seat members disposed in the passages on opposite sides of the lower end of a plunger. The plunger has a bore therein for receiving a pair of valve sealing elements which are biased apart by a spring for engagement with the valve seat members. The plunger is biased to the closed position by a spring and is moved to the open position by the magnetic field generated by the coil of a solenoid. The solenoid coil is disposed about a plastic bobbin which is, in turn, disposed about a nonmetallic tube which is inserted into a counterbore in the housing. A plunger seat member having a conical lower end for engaging the plunger is soldered within the nonmetalic tube and includes a head abutting the upper end of the tube and the upper end of the bobbin. A wave-like washer is disposed adjacent the bottom of the bobbin for urging the bobbin upwardly against the head of the plunger seat member.

Abstract: A gate valve includes a body with a flow passage therethrough and spaced annular seating members in the body surrounding the flow passage with seal means between the seating members and the body. A gate member is positioned between the seat members and has a surface to intersect and close off the flow passage through the body and has an opening for alignment with the flow passage through the body for flow therethrough. The annular seating members include an annular surface for abutting the gate with an annular teflon seal means in the surface and an annular groove also therein with sealant passage means for communicating with sealant passage means in the body for directing sealant to the groove means. Spaced projecting vertical guide surfaces are provided on the annular seating members for abutting the edges of the gate member to retain it aligned in the body. A stem is threadedly secured with a cylindrical member rotatably carried by the gate member whereby rotation of the stem raises and lowers the gate.

Abstract: The present invention concerns a shut-off valve comprising a valve body provided with at least two passage ports and a shut-off member of the passage ports with its operating shaft rotatably carried in the valve body, said shut-off member being connected with the operating shaft by means of an arcuate member, which rests against a staying member on the bottom of the valve body and is elastic, in such manner that the shut-off member may be shifted from one passage port to another by turning the operating shaft, whereby the shut-off member is pressed against the inner surface of the valve body, radially urged by the arcuate member. The valve comprises an adjustable tensioning means, against which the arcuate member is braced and by adjustment of which the pressure of the shut-off member against the inner surface of the valve body is adjustable with change of the curvature of the arcuate member.

Abstract: This invention relates to a ball type shut off valve. The valve includes a body having a flow passage therethrough defining a seat. A ball is loosely held within the flow passageway by the two ends of a shaped, flat strip spring which is held in a longitudinal diametral slot, in a cylindrical shaft positioned in and sealed to the body, with the axis of the shaft at right angles to the longitudinal axis of the body, and to the flow path of the fluid. Rotation of the shaft causes the strip spring to rotate and to control the position of the ball relative to the seat. Rotation in one direction causes a first end of the spring to move the ball away from the seat. Rotation of the shaft and the spring in the other direction causes the second end of the spring to move onto the sea and to hold the ball against the seat by the compliance of the second end of the spring.

Abstract: Sealing apparatus seals off between first and second member faces and about registered ports opening at the faces, the members being relatively movable. The apparatus comprises:A. first and second concentric tubular inserts carried by one of the members for relative telescopic movement, the inserts extending about the port in said one member, at least one of the inserts having an end portion projecting endwise outwardly relative to said one member to be forcibly engaged by the other member for inwardly displacing said one insert in response to said member relative movement toward one another, andB. elastomeric means located between said inserts to transfer compressive force from said one insert to the other insert in response to said inward displacement of the one insert, and to be compressively urged in an outward direction into annular sealing engagement with the face of said other member about the port mouth therein.

Abstract: A reciprocating sliding gate valve with tubular housing and one movable and one stationary gate having multiple fluid conducting ports, which overlap with solid wall partitions spaced between said ports when the valve is closed following sliding, reciprocating displacement of the movable gate, and wherein the interface between the stationary gate and the tubular body bore is sealed by the usual pipe line flange gasket; both gates and other internal parts being readily removable through one end of the tubular housing bore for ease of assembly.

Abstract: A water valve comprises a housing in which a spring biased slider moves between a sealing wall and a sliding wall normal to the liquid flow direction, the spring contacting the sliding wall of the housing.