Abstract: Apparatus and method for operating a primary bed ion exchange resin demineralizer and for regenerating and backwashing the resins thereof. A spider-type distributor assembly having integral flow control means is installed in the top head of a resin-containing exchange vessel, to permit resin bed volume to substantially occupy the entire vessel volume, limited only by the in-service swelling characteristics of the resin. An auxiliary vessel, termed the resin drop tank, is provided for receiving a portion of the resin from the exchange vessel to accomplish backwashing of such portion outside the exchange vessel and all or none of the remaining resin inside the exchange vessel before replacing and regenerating the resin.

Abstract: The invention relates to a fluid flow control valve of the type in which flow through the valve is controlled by movement of a chamber wall caused by fluid flowing into the chamber through a restricted inlet and a cleaning element is provided to clean the inlet. In this invention, the cleaning element is longer than the restricted inlet and is movable between a first position in which it does not extend through the restricted inlet and a second position in which it extends completely through the restricted inlet. The cleaning element is a rod-like element of self-supporting flexible synthetic plastics material and has a limited inherent rigidity enabling it to force dirt and scale from the restricted inlet.

Abstract: The present invention relates generally to a hand held shower spray apparatus, and more particularly, to a hand held shower spray apparatus including a metering device to adjust the flow rate of water therethrough and apparatus which is selectively adjustable to provide a pulsating spray, a normal spray or a combination thereof.

Abstract: Gutter cleaning apparatus is disclosed comprising a housing having a first and second opening therein for delivering fluid under pressure into a rain gutter mounted on a building. The openings are diametrically opposed and the flow of fluid through the openings is controlled by a valve that alternately opens one opening and closes the other. The valve is controlled by increasing and decreasing the fluid pressure in the housing. When fluid pressure is at a pre-determined lower level, the valve is in a neutral position between the two openings. A stream deflector plate extends from the bottom of the valve and depending on which direction the deflector plate is positioned, increasing the pressure in the housing will cause the valve to move into one of the openings. Once the valve is positioned in one of the openings the direction of the stream deflector plate is changed since it is mounted on the valve in a manner so as to engage the housing when the valve is closing one of the openings.

Abstract: An anti-siphon spray head has a housing and a chamber within the housing. An inlet and a plurality of spray openings communicate with the chamber. There is a flexible sleeve positioned within the chamber which masks the inlet to form an anti-siphon closure therewith. A movable valve member positioned within the chamber and within the flexible sleeve controls the flow of water from the inlet to the spray openings. There are means on the valve member which are in sealing contact with the flexible sleeve when the valve member is in a closed position.

Abstract: A sprinkler head comprising an annular sprinkler body of molded plastic having a tubular member of molded plastic snapped into operative fixed relation within the central portion thereof. A flow adjusting screw is threaded within the tubular member and has its head in adjustable flow restricting relation to inlet passages in the sprinkler body. Water flowing through the controlled inlet passages moves upwardly along the interior of an annular wall in the annular body, outwardly along an end wall of a molded plastic spray adjusting member threadedly mounted on the upper end of the tubular member, downwardly between the exterior of the annular wall and the interior of a peripheral wall of the adjusting member and then radially outwardly between cooperating flow pattern defining surfaces on the spray adjusting member and sprinkler body.

Abstract: An improved fluid spray head for sprinkler apparatus is disclosed adjustable both as to the flow rate of fluid to the discharge orifices and the precipation rate over the ground area sprayed, and particularly adapted to spray a specifically shaped non-circular area. The spray head has a plurality of circumferentially-spaced discharge orifices having cross-sectional areas equally proportional to the square of the distance that their respective spray streams are desired to travel whereby the perimeter of the ground area sprayed defines the preselected shape and receives a substantially uniform coverage of fluid.

Abstract: A spray tower for use in spraying a liquid, particularly a corrosive liquid which is used to test the corrosion resistance of test samples, includes a vertically extending cylinder having an open upper end. Liquid is injected into a lower portion of the cylinder, and a gas is injected thereat to atomize the liquid and cause it to pass upwardly through the cylinder toward the open upper end thereof. The cylinder has extending therethrough, in at least one position intermediate the open upper end thereof in the atomizer, a plurality of ports. A deflector member is mounted above the open upper end of the cylinder for deflecting outwardly therefrom atomizing liquid which exits from the open upper end. A directing member is mounted within the cylinder adjacent the ports to direct a portion of the atomized liquid passing upwardly through the cylinder outwardly through the ports.

Abstract: A pulsating shower head comprises a liquid chamber containing a spray block having an annular channel in which are disposed movable members in the form of rotatable balls and slidable segments driven by the force of the liquid to successively cover and uncover outlet openings formed in the annular channel to produce a pulsating effect on the liquid jets exiting from the spray block. The described shower head further includes additional outlet openings for producing non-pulsating liquid jets, and a manipulatable member for selectively connecting either the annular channel outlet openings to the liquid chamber in order to produce the pulsating liquid jets or to connect the additional outlet openings to the liquid chamber to produce non-pulsating liquid jets.BACKGROUND OF THE INVENTIONThe present invention relates to shower heads, and particularly to a pulsating type of shower head wherein a pulsating effect is produced on the liquid jets exiting from the head.A number of pulsating shower heads are known.

Abstract: A simple, two-part adjustable spray device is disclosed, the device consisting of a tubular member within which is a cylindrical insert member. At its inner end, the insert member includes a chamber in selective communication with both the inlet portion of the tubular member and a longitudinal channel formed in the internal wall of the outlet portion of the tubular member. The side wall of the insert member defining the chamber is sufficiently flexible to be distended by the pressure of liquid within the chamber into a sealing engagement with the interior side wall of the tubular member. By rotationally adjusting the insert member, the chamber may be brought into selective communication with the longitudinal channel to allow a varying volume of liquid to pass from the inlet to the outlet and a spray of liquid to be emitted through a profiled aperture.

Abstract: A low-cost precise-metering uniform-fuel-breakup fuel injection valve comprises narrow arcuate slots etched through a thin spray disc located downstream of a metering orifice and comprises a plurality of narrow slots of length and width sufficient to break up the fuel first into thin sheets and then into small droplets of uniform diameter.

Abstract: A valve is disclosed which controls flow of fluid through its body from inlet to outlet, and which has a co-operating valve seat and valve closure member. The closure member is actuated by an operating element which comprises an integral stem and diaphragm, the stem projecting from both faces of the diaphragm. One stem part is connected to the closure member and the other part is free and acts as the actuating member. The diaphragm is secured in and seals the aperture through which the stem projects from the valve body. Heat-sealing of the periphery of the diaphragm to the bounding wall of the aperture is disclosed, and the stem can be stiffened by a metal rod embedded therein. The diaphragm is distorted and acts as a pivot for the stem when the free part of the stem is displaced. The valve is disclosed as forming part of an air-gun and as part of a bath shower unit.

Abstract: Flushing valves of the type having a control chamber with a movable wall are disclosed, the chamber being partially emptied to cause the main valve surface and seat to separate and open the valve, and being slowly refilled to close the valve. A cleaning needle is provided which moves in the restricted inlet to the chamber to remove dirt and scale therefrom. In one form, the valve actuating element sequentially lifts a valve closure element, to which the needle is secured, from a seat to open said outlet and thereafter acts on the movable wall part to cause a reduction in the volume of said chamber and force some of its contents through the open outlet. In a further form, the actuating element pressurizes the chamber by forcing the movable wall in the direction which reduces the volume thereof. The increased pressure forces a flexible wall part of the chamber from a sealing surface to allow liquid to flow from the chamber.

Abstract: A supersonic diffuser for use with a gas dynamic laser having a multichannel shock duct diffuser with outer duct walls and inner duct walls forming an inner duct channel and two outer duct channels. A retractable wall is provided in each of the outer duct channels for closing off the outer ducts after diffuser start up wherein the gas wedges forward of the retractable walls together with the inner duct channel provide diffuser operation essentially the same as a conventional multiple shock diffuser. Retractable stabilizer wedges are positioned slightly forward of the normal separation points.

Abstract: A crossflow cooling tower, water flow control valve and diffuser which includes an open ended inner valve cylinder which moves from a closed to an open position by means of a screw mechanism and allows water to be evenly distributed over a 360.degree. range to all parts of a hot water basin located directly under the valve. The water leaving the valve is directed and proportioned by a series of baffles and a cone to effect a uniform distribution over the basin.

Abstract: The spray pattern of a shower head may be varied by threading the faceplate of the head axially relative to its housing to change the effective cross-sectional areas of tapered grooves in pattern control elements which project through openings in the faceplate and which rotate as a unit with the faceplate during its manipulation. One embodiment has a mounting ring for the control elements which is rotatably retained on the central arbor of the head by a collar bonded to the tip end of the arbor. A second embodiment has a mounting ring for the elements which is threaded onto the exterior of the arbor in a manner to provide relative linear displacement between the faceplate and the elements when the faceplate is threaded into or out of the arbor, and a third embodiment utilizes a threaded collar at the tip end of the arbor to retain the freely rotatable mounting ring for the elements in place on the arbor.

Abstract: An air inlet through which supply air is blown into the room of a building or the like including at least one roller-shaped elongated blowing element, two mutually parallel disposed bearing shells between which the blowing element is mounted and at least one spring clamp. The spring clamp engages both bearing shells and retains them in assembly with the blowing element to thereby hold the blowing element in a form-fitting and positive force-transmitting manner while permitting the blowing element to pivot about its longitudinal axis. The blowing element includes walls defining a passage through which the air passes into the room. In one embodiment the walls define projections which in turn define an inlet passage for the blowing element which is narrower in width than its outlet passage.

Abstract: Methods and apparatus for dispensing seed or other particulate matter in the air to apply the particulate matter generally evenly over a target area on the ground. The seeds are entrained in a viscous, elastic carrier fluid, which facilitates the movement thereof through hydraulic equipment and holds the seeds together in the air to preclude segregation or drifting as the particles drop to the target area. The seed and carrier fluid mixture is either premixed and stored in storage chamber in the apparatus or is mixed immediately prior to being dispensed in the air.One embodiment of the apparatus is utilized to broadcast seed over a relatively wide area and comprises a rotating spray head for dispensing the seed and carrier fluid mixture into the air.Another embodiment of the apparatus is used to apply rows of crop seed and comprises a dispensing head for providing a narrow stream of the seed and carrier fluid mixture into the air.

Abstract: This invention relates to a method and apparatus for guiding endless woven fabric belts such as are used on paper making machines. Specifically, the instant application teaches the use of a guide shower, which is disposed across the width of the endless belt, to provide the guiding action. The shower comprises a series of nozzles which are adapted to be directed at one edge or the other of the endless belt. Three separate embodiments are disclosed. In one of the embodiments, the shower pipe connecting the nozzles is divided into a left side and a right side. The nozzles on the left side are all directed at the left edge of the endless belt whereas the nozzles on the right side are directed at the right edge of the endless belt. In a second embodiment, two parallel shower pipes are disclosed, the nozzles of one of the shower pipes all being directed at the left edge of the endless belt, the nozzles of the other pipe all being directed at the right edge of the endless belt.

Abstract: A fuel supply and distribution system is provided for a gas turbine engine wherein a plurality of flow dividing valves disposed about a manifold are positively controlled through an actuator which interconnects the flow dividing valves by linkage means extending through the manifold thus preventing sticking or seizing of the pressure regulating valves on account of contaminant particulate matter in the fuel.

Abstract: A moisturizing apparatus for use with a wind machine including a fluid manifold mounted on the wind machine to dispense fluid in the path of an air stream created by a rotating fan blade on the wind machine to humidify hot dry air blown over agricultural crops. The apparatus includes valve means and valve control means to selectively activate the valve means from a normally closed position to an open position to allow fluid under pressure to pass through the manifold into the air stream.

Abstract: A gating arrangement for use in moulding plastics, particular foam plastics, formed from a plurality of fluid constituents comprises a plurality of nozzles for delivering the constituents under pressure into a mixing chamber. A nozzle needle is associated with each nozzle and is movable between positions which close and open the nozzles. The nozzle needles are moved from the closing position into the opening position by the pressure of the fluid constituents. A hydraulic piston is associated with each nozzle needle for retaining each nozzle needle in a definite position.