Abstract: A hydraulic power actuator system flow augmentation scheme of the boot-strap type. The scheme consists of a jet pump to augment pump inlet flow with return flow by reducing the pressure in the jet pump below return pressure. A check valve is installed in the augmentation circuit to prevent back-flow during low flow rate conditions. Two load recovery check valves are used to short circuit the actuator during aiding load conditions.

Abstract: A pressure regulating valve with a push pull adjusting knob includes a valve body housing a valve member defining an annular seat adapted for engagement with a knife edge seat on a valve sleeve insert. The valve member is opened and closed by a flexible diaphragm operating mechanism, the diaphragm being exposed on one side to outlet valve pressure and on its opposite side to the atmosphere and a valve control spring. A valve stem rotatably mounted in a valve bonnet adjusts a valve nut for varying the compression of the spring, and thereby the spring force on the diaphragm. A push-pull adjusting knob slidably and rotatably engages the valve stem. The knob is locked against the bonnet in one axial position and is released from the bonnet in the opposite axial position for rotating the valve stem. A detent between the valve stem and adjusting knob provides resistance to the adjusting knob movement, and knob movement is limited by a cap threadably engaged with the end of the adjusting screw.

Abstract: Fluid-flow control apparatus and method are disclosed by which magnetically-positionable elements within a rigid body can be externally manipulated using a controlling source of magnetic flux. The relative attractive forces which bias internal magnetic elements into normally-closed sealing engagement are substantially altered by repositioning the magnetic elements in response to the controlling magnet flux. Complete sealing or isolation against back flow through the valve under conditions of net positive outlet pressure is inhibited by the internal double-acting sealing elements which respond in unified manner to the controlling magnetic flux.

Abstract: The control valve for the re-setting of the props at a predetermined minimum setting pressure is connected at respective junctions to a high pressure conduit, to the pressure chambers of the props, to the prop-setting conduit and to the return-flow conduit leading to the annular chambers of the props. The spring-loaded closure body is guided displaceably in the valve housing by journals on each of the two sides of the valve cone. The ends of the journals are formed as actuation faces. The valve cone seals off the high pressure junction and the junctions leading to the pressure chambers of the prop and opens only when a predetermined minimum setting pressure at the junction is exceeded. For closure, the control valve is loaded through the junction on the actuation area of the journal with the pressure fluid conducted to the annular chambers of the props.

Abstract: A valve structure is provided having a housing with an open top valve chamber and inlet and outlet passages on opposite sides of the valve chamber forming a through passage with the valve chamber through said housing, a generally spherical radius valve seat on each passage at the valve chamber, a bonnet removably covering said valve chamber, a stem extending through said bonnet generally axially of the valve chamber, a pair of generally spherical radius closure discs in the valve chamber sealingly adapted to engage the valve seats, a disc carrier for each disc in the valve chamber, each disc carrier having a through passage in a plane transverse to the plane of the disc providing full flow therethrough from the inlet to the outlet passage when the valve is in opening position, an eccentric means provided on the stem and engaging each disc carrier for selectively moving the discs into and out of engagement with the valve seats and a guide between the bonnet and at least one of said disc carriers guiding the di

Abstract: A reverse-buckling rupture disk assembly provides a cylindrical housing having a bore for conveying flow through the housing. Removably mounted within the housing is a frangible concave-convex disk which is connected along its peripheral edge to the housing so as to form a closure to the bore. The housing can be disassembled and such disassembly allows removal and replacement of the disk. The disk is designed to resist pressure on the convex side up to a predetermined pressure and then collapsing after the predetermined pressure is reached. A knife blade is positioned within the housing bore on the concave side of the disk for perforating the disk when it collapses. The ends and center of the blade are removably connected to the inner surface of the housing so that the blade can be replaced after it wears or otherwise needs replacement. The knife blade is spaced from the inner surface of the housing at least along a substantial portion of its length. The knife blade can be serrated and is preferably curved.

Abstract: A single metal-seated ball valve can accommodate differential temperature expansion of the components without jamming yet provide tight shutoff in a closed position, and provides tight shutoff even if solids are present in the fluid being valved. The valve includes a valve body with a through-extending bore and interior cavity, and a rotatable valve element (such as a ball) having a through-extending passageway and mounted for rotation about an axis for movement between the first, open position in which the passageway and bore are generally aligned, and a second, closed position wherein the passageway and bore are not aligned. A metal sealing ring, or a machined sealing surface of the metal valve body, sealingly engages the valve element and prevents flow of fluid through the bore when the valve element is in its second, closed position. A pair of elongated flexible linear spring elements bias the valve element into sealing relationship with the sealing ring.

Abstract: A pressure relief valve and regulator in which the valve chamber has a side port for connecting to the pressure line to be monitored. The valve seat opens to an exhaust and has a diameter slightly larger than the chamber diameter. The valve incorporates a double ended piston, spring, and cam whereby the cam offsets the normal compression gradient of the spring by rotating as the piston moves in and out.

Abstract: The present invention is directed to a sanitary mixing valve in which the valve housing is made of a ceramic material of unitary design and is interchangeable by being removably mounted to a connecting member having a cartridge valve assembly mounted thereto.

Abstract: A ball valve comprising a housing having a cylindrical bore extending inwardly from the exterior and defining a valve chamber with inlet and outlet passages connected from the exterior of the housing to the chamber. A ball valve member is positioned axially in the chamber and has a cylindrical operating stem extending axially of the bore into a position exterior of the housing. Positioned within the chamber is a mass of resilient packing material which surrounds the ball and substantially fills the chamber. Adjustable means are provided for applying a compressive load to the packing to cause it to sealingly engage the inner walls of the chamber and the exterior of the ball member. The adjustable means include a rigid circular gland member closely received in the bore and extending transversely thereof in engagement with the packing. A circular opening in the gland member closely surrounds the operating stem and disk spring means are positioned on the gland member on the side opposite the packing.

Abstract: A bowden cable wherein an intermediate section of the tubular casing is replaced with or an end portion of the casing is constituted by a hollow insert containing a motor for a blocking element which is movable relative to the insert and, when moved to an operative position, prevents an abutment on and hence the wire of the bowden cable from moving axially. The bowden cable is then inoperative, i.e., the wire cannot transmit motion to a lever or to another movable component which holds the hood, the trunk or another mobile part of a motor vehicle in a predetermined (e.g., closed) position.

Abstract: A reverse-buckling rupture disk assembly provides a cylindrical housing having a bore for conveying flow through the housing. Mounted within the housing is a frangible concave-convex disk which is connected along its peripheral edge to the housing so as to form a closure to the bore. The disk is designed to resist pressure on the convex side up to a predetermined pressure and then collapsing after the predetermined pressure is reached. A knife blade is positioned within the housing bore on the concave side of the disk for perforating the disk when it collapses. The ends of the blade are connected to the inner surface of the housing or are connected on one side of the lateral center line of the bore. The knife blade is spaced from the inner surface of the housing at least along a substantial portion of its length. The knife blade can be serrated and is preferably curved. The blade can be generally U-shaped so that both ends of the knife blade are connected to the same half of the housing wall.

Abstract: A gas pressure reducing regulator for use with high inlet pressures is provided. The regulator includes a diaphragm plate for shielding the diaphragm from deleterious effects of flame and debris during unwanted combustion.

Abstract: A ball valve comprising a valve body defining inlet and outlet sections, and a ball with a calibrated through-port. The valve further comprises a stem to rotate the ball between open and closed positions, a seal to insure a fluid tight closure of the valve when the ball is in the closed position, and a mechanism for retracting the seal. This seal retracting mechanism is selectively coupled to the stem, and the mechanism eliminates all contact, when the valve is in the open position, (i) between the ball and the seal, and (ii) between the stem and the seal retracting mechanism.

Abstract: A breakaway hose coupling device (10) for releasably joining the hose ends of two fluid communicating hoses and for selectively disengaging and sealing such hose ends in response to disengaging force of a preselected value is disclosed. The coupling device (10) comprises a coupling sleeve (12) defining at least one shear pin hole (18) for receiving a shear pin (54) having a preselected shear strength. The coupling device (10) further comprises first and second valve assemblies (20 & 22) each comprising a valve housing (24, 25) having a forward end portion (26) for being received in the opposite ends of the coupling sleeve (12), and a rearward end portion defining a threaded receptor (34) for engaging a hose end. Each valve housing is also provided with a passageway (30) therethrough communicating with the hose end, the passageway (30) defining a forwardly disposed valve seat (32). Each of the valve assembly (20 & 22) further comprising a spring biased poppet valve (58) mounted within the passageway (30).

Abstract: An improved, soft-seated fire-safe ball valve is disclosed. The ball valve includes a body having a central passageway, a ball member positioned in the passageway, and a pair of radially inwardly extending shoulders in the passageway disposed circumferentially thereof on opposite sides of the ball member. The ball member includes a fluid flow opening therethrough and is mounted for selective rotation between valve open and closed positions to control fluid flow through the valve. An improved seat assembly is provided comprising a rigid reinforcing ring, an elastic seat ring supported by the reinforcing ring and configured for fluid sealing engagement to the ball member, and a deformable, heat resistant secondary seat ring interposed between the elastic seat ring and an associated one of the pair of shoulders. Also, a weir ring may be advantageously received in the seat ring. Upon fire damage to the elastic seat ring, the secondary seat ring engages the ball member to seal the valve.

Abstract: The valve comprises a valve socket to be mounted in the wall of an inflatable body, e.g. by a snap fastener device, and a valve cap having an internal thread for threaded connection with an external thread on the valve socket. The valve socket includes an air duct with a short duct section which is connected with the outer surface of the valve socket only through a number of narrow ducts discharging at the bottom of an annular groove from whose internal edge a number of radial ducts are connected with a central bore provided in the cap. At the internal edge of the annular groove a pressure sensitive annular sealing member is provided which by the pressure from the outside will be pressed out on a larger diameter in the annular groove. By eliminating the pressure action the sealing member reoccupies its initial position in airtight abutment between the bottom plate of the annular groove and an internal annular surface in the cap.

Abstract: An automatically and independently operating safety device for triggering a total or partial closure of a guard or safety valve member when the velocity of a fluid circulating in a conduit attains a predetermined dangerous value. The device senses the static and total pressures of the fluid within the conduit and supplies these pressures which control the movement of a piston and rod wherein the movement of the rod in response to fluid velocities which are dangerously high will initiate the actuation of the safety valve.

Abstract: An improved air chuck for tire valves having a plurality of teeth which positively lock the chuck to the valve stem by a plurality of closely spaced radially inwardly projecting fingers which are moved into engagement with the valve stem by sliding a sleeve member over the fingers. The chuck includes a means for depressing the tire valve pin and a means for sealing the outer end of the valve when the chuck is engaged.

Abstract: A pressure regulating device is proposed, which serves to regulate the fuel pressure in a fuel injection system for internal combustion engines. The pressure regulating device includes a pressure regulating valve which has a valve diaphragm fastened in a valve housing and defining a fuel chamber which communicates via an inflow opening with a fuel distributor line. Protruding into the fuel chamber is a valve seat body joined to the valve housing, on one end of which body a valve seat is formed and the other end of which is embodied as an outlet pipe that passes through the wall of the fuel distributor line. The fuel distributor line is formed of two shell halves inserted one inside the other, of which the first shell half has a tub-shaped end into which the pressure regulating valve is inserted and with which it is securely fastened.