Abstract: A valve for use with a water filtration system has a housing and a piston contained therein. The piston has a bypass position, a shut-off position, an inservice position, and a back-flush function in relation to the housing. These functions are accomplished by maneuvering a cylinder inside a housing in a manual fashion with the appropriate handle. The housing has various ports which contact various apertures within the cylinder to provide for such a flow.

Abstract: A valve assembly comprising a main valve body having an inlet flow passage and at least one outlet flow passage and a flow chamber extending between the same. The main valve body has a valve seat surrounding the inlet flow passage. The valve body having an opening in alignment with the inlet in the inlet flow passage. The valve body has an annular shoulder surrounding the opening. A diaphragm is disposed within the flow chamber and sealingly engages the shoulder and movable between open and closed positions with respect to the valve seat. A valve operator is mounted on the valve body for moving said diaphragm between the open and closed positions. The main valve body has a side wall and a side wall opening therein in communication with the flow chamber. The side wall has a side wall valve seat formed therein surrounding the side wall opening.

Abstract: A device for distributing pressurized water to a plurality of sprinkler lines is provided. The valve and valve control portions are centralized, and thus no electrical connection to remote locations is required. The valve system is modular so as to permit addition or deletion of modules for adding or removing control of sprinkler lines. A stepper motor and cam shaft system permits expenditure of energy only during change-of-state events, so that no electrical energy need be consumed to maintain a watering state. A generator which produces electrical energy from the pressure head of a pressurized water source provides electrical energy for operating a motor and a motor controller, such as a device including a microprocessor.

Abstract: A manifold valve assembly, composed of a plurality of valve subassemblies, each of the subassemblies including at least five valves. At least a first one of the valves in each subassembly is in fluid flow communication with a supply source, and at least a second one of the valves in each subassembly is in fluid flow communication with a fluid distribution conduit and at two of the valves in each subassembly, when open, discharge fluid into a drain and serve as leak detector ports. A fifth valve, when closed, separates the first and third valves from the second and fourth valves, the valves being interconnected by fluid flow conduits to selectively allow flow of fluids from the supply source to the distribution conduit and to prevent flow thereof to a drain.

Abstract: A reciprocating gate valve for controlling the flow of particulate material is provided. The gate valve has a metal valve gate with an angled leading edge and also has a groove in the center of the angled leading edge. The valve body is formed from a metal cover plate that has a plurality of plastic body parts fixed to the cover plate so that the metal valve gate reciprocates between plastic body parts. The plastic body parts are preferably formed of self-lubricating plastic such as nylon or Teflon. The valve body has a rectangular recess which intersects the circular passage through the valve body with the rectangular recess having its long dimension positioned transverse to the direction of movement of the valve gate. The rectangular recess provides space for the particulate material to be moved ahead of the valve gate angled leading edge as the valve gate closes.

Abstract: A multiple valve assembly incorporates three valves in one valve body. The main body has inlet and outlet ports in the mainline, and two sample ports, one on either side of the main valve seat. The valves and sample ports are oriented in only two planes for easy installation and access.

Abstract: A wound plate heat exchanger includes a series of air cooling passages defined between the convolutions of its windings such that, when rotated about a longitudinal axis through the center of the windings, cooling air is drawn through the cooling air passages.

Abstract: A system for pumping liquids that are subject to solidification in the line, uses a compressed gas as an expulsion medium for the liquid. A compound hose pipeline is used, having a variable volume gas chamber adjacent a transfer passage, extending the length of the line. The line may comprise an outer hose that provides an air annulus about a collapsible inner hose, through which the pumped liquid can flow. Air or other gas admitted to the annulus operates to expel the liquid from the inner hose, either upon the loss of pressurization of the liquid in the inner hose, or upon the application of adequate pressure within the gas annulus to discharge the liquid from the inner hose. A compartmented hose has a separating disphragm running the length of the hose, where admission of gas to one side of the diaphragm diminishes the adjoining chamber of the hose. When liquid is pumped, the diaphragm is displaced laterally, permitting full flow in the hose.

Abstract: The Eccentrically Rotatable Sleeve Type Three-Way Valve is comprised of a housing having a central, vertical bore retaining therein a flexible, tubular sleeve whose central portion can be eccentrically motivated towards or away from two opposite valve seats which are located perpendicularly towards and at the center of said vertical bore, by a core element positioned inside said sleeve and which is capable of being radially displaced by a stem having eccentric cam means and wherein said sleeve is sealingly engaged towards the housing bore by deformable seals motivated by bonnets and wherein said sleeve can guide fluid entering from a third port towards and through either of the two valve seats.

Abstract: A gas turbine engine heat exchange apparatus comprises a first heat exchanger (12), which is arranged to receive oil from a lubricating oil system of the engine and put the oil in heat exchange with either a cooling or heating medium (17, 21), and a second heat exchanger (26), which receives the oil from the first heat exchanger, puts the oil in heat exchange with fuel in the engine's fuel supply system and discharges the oil back to the lubricating oil system. A valve or valves (20, 24) are used to control flow from high and low temperature sources of the heat exchange medium through the first heat exchanger (12) such that the direction of heat flow between the oil and the cooling or heating medium can be changed as necessary to prevent the fuel temperature from straying beyond predetermined limits.

Abstract: An intake bypass valve comprising a primary tubular member, the member having a cavity at its central extent for the receipt of a spherical ball; a secondary tubular member coupled to the primary member, the secondary member adapted to direct the fluid from the central extent of the primary member; and a spherical ball rotatably positioned within the recess of the primary member, the ball adapted to be rotated about an axis, the ball having a central aperture therethrough with a diameter, the ball also having a clapper plate pivotally located in the wall of the ball, the clapper plate including a spring adapted to resiliently urge the plate into a closed position wherein its exterior surface is co-extensive with the wall of the ball, the plate adapted to be moved into an open position wherein the clapper plate is located within the aperture of the ball.

Abstract: A valve includes a body having a valve element positioned therein. The valve element includes a bore therethrough, which is selectively alignable with bores through the valve body. As the valve element is moved to position the valve element bore in an askew position with respect to the valve body bores, flow eddies or turbulence may form and result in vibration and/or noise. The valve includes a plurality of diffusers which break up the flow to reduce the noise and/or vibration. Additionally, a secondary flow passage may be disposed between the valve element bore and the outlet bore of the valve body, to permit a portion of the flow through the valve to pass therethrough as the valve element is rotated to throttle the flow through the valve.

Abstract: A valve block assembly for controlling the flow of operating air to air operated mechanisms of a section of an I.S. machine comprising at least one valve block including a plurality of valves, each of the valves having an inlet chamber for receiving operating air, a conduit associated with each valve for directing operating air away from the valve towards the air operated mechanisms or for directing exhaust air from the air operated mechanism to the valve, and an exhaust channel for directing exhaust air away from the valves, and a manifold including means for supplying operating air to the inlet chambers, an exhaust channel for receiving exhaust air from the valve block exhaust channel, and a corresponding plurality of conduits communicating with the valve block conduits for delivering exhaust air from the air operated mechanisms to the valve block conduits or for directing operating air received from the valve block conduits towards the air operated mechanisms.

Abstract: A backseat assembly for an expanding gate valve includes a sealing member slidingly disposed about the stem and a biasing member biasing the sealing member away from the gate. Upon the gate and segment traveling to the open position of the valve, the segment engages the valve housing and stops its further movement. The stem and gate continue their travel with the sealing member engaging an annular seat on the housing for sealing between the stem and housing. The sealing member includes an annular resilient sealing member which initially engages the annular seat of the housing. The biasing member places a preload on the sealing member such that upon engagement of the annular seat by the sealing member, there is initial sealing force placed on the sealing engagement. The fluid pressures within the valve chamber add an additional sealing force to the sealing member.

Abstract: A ball valve having a body with an inlet, an outlet and a cavity containing a ball with a spherical flow passage between the inlet and the outlet. A ring supported on the body concentric to the inlet and the outlet. A seat surface is supported on the ring between an outer transition surface, an inner transition surface and concentric to the inlet. The seat surface is engaged by the ball member. The inner transition surface and the outer transition surface are each inclined to the seat surface at a shallow angle. A flow passage extends through the spherical surface of the ball at a sharp edge that moves across the transition surface adjacent the seat surface to the seat surface as the ball moves from an open to a closed position. The sides of the ball each have a recess extending through the spherical surface at a sharp edge whereby a cleaning action on the seat results during opening and closing of the spherical surface.

Abstract: A coaxial breakaway coupling and a coaxial hose connect a fuel dispensing pump to a coaxial fuel dispensing nozzle, and the coupling includes first and second tubular valve bodies releasably coupled together by an annular canted coil spring. Each valve body supports therein an axially movable tubular valve member for defining an inner vapor return passage and an outer fuel supply passage, and a vapor return check valve member is supported for axial movement within the vapor return passage upstream of an annular valve seat. All of the valve members are spring biased towards closed positions and move to open positions when the valve bodies are coupled together. When the valve bodies are uncoupled or separate in response to an axial breakaway force, the valve members close, and suction from a vacuum pump connected to the vapor return passage pulls the check valve member towards it closed position against the valve seat. In a modification, the breakaway coupling is integrated with a 45.degree.

Abstract: In an elongate housing (12), a valve body (30) comprising two annular chambers (36) is mounted so that it can be displaced longitudinally, one each of which communicates with a connection neck of the housing (12) via a radial hole (28). In the neutral position, a further central radial hole (28), which communicates with a water inlet, is sealed against the annular chambers (36) by O-rings (38). A pivotable rocker (44) with a broad surface has two operating extensions (50) which contact the front end of the valve body (30). By swivelling the rocker (44), the central radial hole (28) can be selectively connected to communicate with each of the two outer radial holes (28).

Abstract: In a fluid flow emergency shutdown valve a valve body is transversely interposed in a fluid line upstream with respect to a flow restricting unit, A valve stem is longitudinally slidably supported by the valve body and referenced to atmosphere at its respective ends, The valve stem supports a valve normally disposed upstream with respect to its seat. The other end portion of the valve stem supports a piston fluid pressure balanced by downstream fluid pressure from the outlet port of the flow restricting unit in combination with the buckling point value of a collapsible pin axially abutting the downstream end of the valve stem, A decrease in downstream fluid pressure below a predetermined value increases the pressure differential across the piston from its upstream to its downstream side which moves the piston to buckle the collapsible pin and move the valve to a closed position.

Abstract: An automatic fluid flow control device and method are disclosed. The fluid flow control device provides a constant flow rate of strained fluid despite varying differential pressures and employs a combination of a unitary body with a first valve to open or close the device to fluid flow and an integrated, removable strainer in the form of a cup that encircles an inlet of a removable flow control valve. The body is essentially in the shape of a "Y" and provides a compact valve with minimum threaded joints and access to the various components thereof with minimum disassembly. The removable strainer is configured and arranged in a manner so that fluid flows from the outside to the inside of the cup-shaped strainer, allowing easier use and cleaning.

Abstract: A valve used in a sewage handling system allows outer casing components to be disconnected from each other while both of the fluid transporting or retaining components that are connected to the valve remain sealed from the environment when the valve is in a closed position. Yet, the valve can be operated by simple rotation of a single actuator. For example, the valve connects a conduit connected to a toilet with a sewage holding tank. The valve includes first and second connecting parts of an outer casing which are circular cross section housed cylinders with one end perpendicular to the axis of elongation of the cylinder and the second end forming an oval face disposed at an angle of about 35.degree.-55.degree. to the axis of elongation.