Abstract: A lawn sprinkler system is provided for receiving fluid from a fluid source and distributing the fluid over an area. The lawn sprinkler system includes multiple lawn sprinklers for distributing fluid over corresponding portions of the area. Stake assemblies are provided for supporting the lawn sprinklers above a supporting surface. Each stake assembly includes an input operatively connected to the fluid source, a first output for providing fluid to the corresponding sprinkler, and a second output. A conduit interconnects the second output of one of the stake assemblies to the input of an adjacent stake assembly to connect the adjacent stake assembly to the fluid source.

Abstract: A water injecting system for injecting water into the soil. The water injecting system includes a first member for inserting into the ground surface and a second member for coupling to the first member. The first member has a substantially hollow first tube having a first end and a second end. The first end has a substantially conical shape, and the first tube has slits therein. A second hollow tube has a first end and a second end. The first end of the tube is fluidly connected to the second end of the first tube. The second member delivers water to the first member. The second member has a substantially hollow third tube having a first end and a second end. The first end of the third tube is fluidly connected to the second end of the third tube. The third tube is adapted for coupling to a female portion of a garden hose.

Abstract: A fire ant eradication apparatus comprises a tubular handle having a first end adapted for attachment to a pressurized water source and a second end. The apparatus further includes a conduit having proximal and distal ends relative to a user with the proximal end coupled to the second end of the handle for fluid transmission therebetween. A dispensing assembly is attached to the handle with the conduit extending therethrough. Insecticide is aspirated from the dispensing assembly into the conduit as water flows through the conduit. The conduit includes a plurality of longitudinally spaced apart nozzle assemblies for dispersing the insecticide from the conduit. The distal end of the conduit includes a point assembly having a cone section and a tip. The upper end of the cone section has a diameter greater than the diameter of the conduit such that the nozzle assemblies will not become clogged with soil as the apparatus is inserted into the ground.

Abstract: A fire-fighting hose nozzle or line nozzle, that is, a nozzle used to discharge fluid spray during fire-fighting operations, is accoutered for high water-pressure spraying of water or other fire fighting fluid by professional firefighters. Such a high-pressure can, for instance, put about 200 pounds (p.s.i.) or more pressure on a nozzle tip. The nozzle has a long, slender body member with a weighted and pointed tip, a discharge orifice at a position rearward of the pointed tip, and at least one transverse member, and in embodiments a plurality of transverse members. The transverse member most proximate to the proximal end of the body member functions both as a set of handles and as a stabilizing member. A second transverse member functions as a stabilizing member. The orifice is a slot angle-cut forward or backward from its mid-section which produces a wide and high fan-shaped spray in either the forward or backward direction.

Abstract: A scent apparatus is provided including a scenting mechanism for dispensing a scent upon the actuation thereof. Further included is an actuation mechanism connected between the scenting mechanism and either a computer or a game unit for actuating the scenting mechanism during a game.

Abstract: An automatic water sprinkler assembly is provided. A main conduit is connected to a source of water pressure, at least a portion of the main conduit is buried underground with a releasably connected vertical portion extending above ground. A main horizontal feeder conduit having at least four vertical output conduits is connected to a source of electrical power for operating electrically controllable valves associated with each of said at least four vertical output conduits for selectively controlling fluid flow therethrough. Each of the four vertical output conduits has an end portion terminating above ground and releasably connected to a primarily horizontally extending discharge conduit. The vertical portion of the main conduit, the horizontal feeder, and the vertical output conduits are all releasably connected above ground so that the entire distribution assembly is portable. Alternatively, the valves may be manually operated.

Abstract: An irrigation system comprising a container for holding a liquid, a tap, a device for simultaneously puncturing the container and securing the tap to the container and a device for regulating the dispersement of the liquid from the container. Also provided is a method of irrigation comprising the steps of attaching at least a portion of a spike to a tap thus forming a tap and spike assembly, puncturing a container for holding a liquid with the tap and spike assembly and simultaneously securing the tap to the container wherein the spike automatically dislodges from the tap and falls into the container, and dispersing the liquid from the container to a desired irrigation area.

Abstract: An irrigation system is disclosed. The system features a pair of lines placed generally parallel and proximate to each other in the subsurface. Only one of the lines is directly connected to the water source. The other line serves as an auxiliary to permit the system to be flexibly adapted or expanded to meet changing irrigation demands or landscape conditions. The auxiliary line is separated into discrete segments, each segment pertaining to a selected zone or area to be separately irrigated. Feeder lines run from each discrete segment to sprinklers. Water is provided to the segments via valved bridges extending from the main line to the segment, so that water flows to the segments only by way of the bridges, the bridges permitting separate segments to be activated in a planned manner.

Abstract: A spray nozzle adapter is used with a conventional spray nozzle having a nozzle plug for regulating the flow of fluid in response to a control lever. The spray nozzle adapter has an intake coupler having an axially extending cylindrical wall defining an intake orifice constructed to couple to the spray nozzle, a shaft coupled to the intake coupler and a valve assembly coupled to the nozzle plug and disposed in the fluid passage of the first shaft for controlling the flow of fluid from the spray nozzle in response to movement of the spray nozzle control lever. The valve assembly includes a valve and a lever coupled to the valve. The valve has a plug for controlling the flow of fluid from the outlet orifice. The lever is securely coupled to the nozzle plug of the spray nozzle to relay the movement of the nozzle plug to the valve. The spray nozzle adapter also has a cone-shaped deflector mounted to the intake coupler to substantially surround the shaft.

Abstract: A fluid discharge nozzle assembly that has both a piercing nozzle for fighting fires behind a wall member and a foam/spray nozzle for applying fire-retardant fluid to an open fire. The piercing nozzle is movable only in a vertical plane. The foam spray nozzle is movable in both the vertical plane with the piercing nozzle and in a direction perpendicular to the vertical plane so that, when the piercing nozzle is to be used, the foam/spray nozzle is movable to a position perpendicular to the longitudinal axis of the piercing nozzle to provide maximum clearance of the piercing nozzle during use of the piercing nozzle.

Abstract: An applicator is illustrated for introducing a flow of chemical adjacent the roots of a plant without supplying chemical to adjacent plant material utilizing a tubular guide (A) which acts as a cover for a needle (D) which is carried by an inner tubular support (B) which carries a dispensing tube for connection to a source of pressurized chemical (F). The dispensing tube is connected through the handle (E) and a compression spring (G) is provided to urge the tubular guide (A) downwardly for acting as a guard for the needle.

Abstract: Base for a fire-fighting tool is adapted to be secured to a horizontal surface such as the deck of a ship next to a vertical surface such as a bulkhead of such ship. The base is disposable at an angle that will allow the tip of a penetrator of a nozzle section of the fire-fighting tool, upon activation of an extensible hydraulic ram attached to the nozzle section, to be forced into the bulkhead and ultimately through the bulkhead, after which water may be sprayed into the area behind the bulkhead where a fire may be burning via spray orifices in the nozzle section. The arrangement of the fire-fighting tool at an angle between the deck and the bulkhead assures that there will be a rigid surface available for enabling pressure of the hydraulic ram to be exerted forcefully enough on the end of the penetrator section to breach the wall or bulkhead. The penetrator will dig into the wall surface efficiently and effectively even though it is applied to such wall surface at an angle.

Abstract: Penetrating nozzles are disclosed for first penetrating standard commercial and residential building materials to form a relatively small entrance hole or opening and subsequently delivering water to the area to cool off superheated gases. Different water dispersion attachments may be used, including a spiral or screw-type attachment for providing a mist or fog to the area or straight stream nozzles for directing a stream of water in directions either parallel to the axis of the nozzle or at an angle 90.degree. thereto. The nozzles include a protector cap at the leading axial end thereof which is provided with a tip suitable for battering the surfaces or barrier and punch a hole through it. The protector tip is retained on the tubular attachment until the protector tip has penetrated the barrier and has been placed on the other side, at which time the application of water under pressure to the elongate dial causes the protector tip to be cast off or ejected.

Abstract: This invention relates to an apparatus and method for penetrating a titanium walled enclosure to dispense a fire fighting agent within the enclosure. A penetrating device is attached to the forward end of a rotatable barrel, providing for penetration of the titanium wall of an enclosure and insertion of the forward end of the barrel through the titanium wall. The rotatable barrel is mechanically coupled to a controllable actuating device, such as a motor. The actuating device is used to rotate the barrel, thereby driving the penetrating device to penetrate into the enclosure, allowing insertion of the penetrating device and the forward end of the rotatable barrel into the enclosure. Fire fighting fluid is dispensed into the enclosure through a fluid channel in the barrel.

Abstract: A door (B) of a countertop decontamination unit (A) is opened to gain access to a well (20) for receiving an anti-microbial agent carrying cup (D). A knife blade assembly (E) includes a central shaft (30) which supports a blade (40). The blade has cutting edges (46) extending in a sloped manner downward from an apex portion (42) of the blade. The blade is divided into two blade sections (44) by the shaft. The cutting edges have beveled peripheral edges which face the front of each blade section. The blades has a curvilinear configuration that defines oppositely facing upper and lower cam surfaces (50, 52). The central shaft has apertures (34a, 34b, 34c) communicating between a shaft interior passage 32 and the outside of the shaft for providing jets of fluid to the inside of the reagent cup for dissolving and flushing the reagent material from the cup. The curved configuration of the blades deflect fluid flow from the apertures into the reagent cup.

Abstract: A hand tool for use with a water supply to allow easy cultivation and watering of gardens and the like. One end of a hollow, tubular handle is attached to a valve which, in turn, is coupled to the water supply for allowing the user of the hand tool to cause water to flow through the handle. A blade is attached to the other end of the handle. An aperture extends though the blade in communication with the cavity through the handle so that water flowing through the handle will flow through the aperture in the blade. A baffle is attached to the blade about the aperture through the blade on the side of the blade opposite the handle for deflecting water flowing through the handle and out the aperture in the blade.

Abstract: A high-pressure water spray gun is disclosed for use, for example, for fire-fighting. The spray gun has a cylindrical body for connection to a supply hose and a spray lead rotatable in the body by water issuing through pairs of jet nozzles around the barrel of the spray head. In each pair of nozzles, the axes of the nozzles are convergent and being closest to each other in a mixing region at, or just outside of, the outer surface of the barrel. At least one nozzle has a non-radial axis. The spray head may be normally housed in the body, being moved to an exposed working position by water pressure against a spring.

Abstract: A device for the eradication of fire ants includes a reservoir for the introduction of liquid insecticide, a conduit that transports liquid insecticide from the reservoir to a dispersion manifold, and a pointed tip to facilitate pushing the device into the ground. The manifold has a main passage in fluid communication with the interior of the conduit and a plurality of lateral holes in communication with the main passage that lead to the exterior surface of the manifold. The exterior surface of the manifold has an annular channel where the holes emerge from the manifold to space the holes apart from the dirt of the wall of the bore hole formed as the device is pushed into the ground. This gap helps to keep the holes free of dirt and soil particles so the pesticide can flow freely from the device. The reservoir is sized to hold an effective amount of insecticide, approximately one quart or more.

Abstract: A transport unit for transporting fire fighting hoses, explosive materials, equipment or other items, the unit having a projectile launcher including a pressure tank providing a compressed gas chamber, and a projectile barrel mounted on the tank in fluid communication with the interior of the tank, a projectile positioned in the barrel, a hose or other line connected at one end to the projectile launcher and adapted for connection at its other end to the projectile, the line being adapted for connection to a pressurized fire fighting or explosive fluid source, or the line being comprised of an explosive material, the compressed gas chamber adapted to provide launching force to the projectile upon actuation of the launcher.

Abstract: A conduit and method of installing water conduits, electrical conduits or drainage conduits in soil. The conduit has a hollow body with a flat top, an integral upper flange and a wedge-shaped integral lower flange, adapted to be received or forced into the soil to provide a watering system or the like with the flange flush with the top of the soil.

Abstract: Apparatus (1) for removing asbestos insulation. A pipe (7) delivers a fluid such as a surfactant to tines (13) which are attached to the pipe. The tines have a tapered end (17) for puncturing the covering (C) over the asbestos and the tines penetrate partially through the thickness of asbestos. Fluid discharged through the tines saturate the asbestos so it can be removed.

Abstract: A firefighter's barrier penetrator and agent injector having an extendible slide rod to guide a slide hammer to strike a penetrating body to drive its point through the barrier. The slide rod can be retracted into the body to minimize the length of the penetrator while being carried. A nozzle is slidably mounted in the body to be extendible into the structure for injection purposes, again to minimize the carrying length. Retention devices releasably hold the rod and nozzle in their retracted positions.

Abstract: This invention relates to a pneumatic soil penetrator and chemical applicator assembly operable, for example, to penetrate a soil surface and discharge a chemical toward the root system on a tree member or to broadcast the chemical about a large area. The pneumatic soil penetrator and chemical applicator assembly includes (1) a penetrator and applicator connected to a pneumatic supply to provide air pressure thereto; and (2) a chemical supply connected to the penetrator and applicator. The penetrator and applicator includes a main gun assembly having a primary inlet assembly; a main discharge assembly; and a control handle assembly in order to provide for selective control of fluid and chemical flow for (1) conveyance of the fluid flow and chemical therethrough; and (2) high pressure fluid flow to be used in a digging or penetration of the soil area.

Abstract: An underwater rescue device which delivers fresh air into the interior of a submerged vessel by puncturing a hole through the body of the vessel and forcing fresh air through the new opening. The rescue device provides for the use of an elongated housing having an internal passageway which utilizes a means for puncturing an aperture into the body of a submerged vessel. The means for puncturing an aperture may take the form of a dart which is projected by a sliding weight hammer through the body of the vessel. Once an opening is made into the body of the vessel, air is supplied through the internal passageway through the opening into the vessel. The device further provides a sealing member for the created opening for use during the delivery of fresh air.

Abstract: An applicator device for injecting additives such as fertilizers, herbicides and the like into soil. The device comprises a housing from which extends an elongated injector bar moveable to selectively supply from the housing additive or water. The bottom end of the injector bar is provided with a point for easy insertion into the soil, in which point is an aperture through which additive or water from the housing flows into the soil.

Abstract: An apparatus for breaking up, dissolving and flushing away animal excrement left on the ground or lawn includes a hollow cylindrical handle section coupleable to a garden hose at its upper end, and terminating in a hollow, frusto-conically shaped spray head at the lower end of the handle section. The spray head includes a hollow exterior shell section, and an orifice plate transversely positioned within the hollow interior space of the shell sections, the orifice plate having plurality of regularly spaced orifices whose entrance openings communicate with pressurized water introduced into the upper end of the shell section by the handle section, and whose lower exit openings produce streams of water at various angles adapted to efficiently break up a pile of animal excrement.

Abstract: A device capable of perforating strong walls, then of injecting a fluid through the same walls, is described. The device is intended essentially for intervention crews such as personnel assigned to maintain order or fire-fighters. The perforator-injector has a piston (1) which can be displaced in a cylinder (2,3) under the influence of a power fluid under high pressure. In order to increase the perforating power without inducing a too great initial recoil, the perforator-injector is equipped with a percussion mass (4) which is interposed between the head (1b) of the piston and a source of power fluid under high pressure. This mass is initially kept at a distance from the head of the piston and is capable of sliding in the cylinder (2,3).

Abstract: A fire-fighting tool having a perforated pointed forward end is designed to automatically maintain its water-emitting portions in place within the interior of a burning building, without manual attention thereto, after the wall or roof of such a building have been pierced with same. Rearwardly directed ports are carefully arranged so as to produce non-intersecting streams of water. These ports emit water under high pressure when the pointed heavy tool is attached to a fire hose and serve to extinguish the fire at the inner surface of the outside wall, and at the same time prevent the tool from being ejected rearwardly, which would be the normal result of the passage of water under high pressure from the fire hose through such a tool.

Abstract: The invention provides a manually controlled, self-contained liquid misting attachment for web covered folding lounge chair and web covered folding chairs useful for sunbathing. A tubular pliable H-frame fits the chair frame and is attached by retainers. A pressurized water tank supplies liquid controllably to the H-frame and to spaced adjustable mist-producing heads in paralleling surfaces of the H-frame conduits. The sunbather, reclining on a lounge or sitting on a chair to which the liquid misting attachment is fastened, can selectively apply misted water or sun effecting liquids to his or her body by manually pressurizing a spring biasing normally closed control valve.

Abstract: An irrigation dripper (10) has a screw threaded shank (12) terminating in a head (14). The shank (12) is tapered and has an axially extending groove or slit (16) are formed on the shank (12) which in use is fitted in a hole formed in a pipe (26). Water from the pipe (26) is discharged through the slit (18) for irrigating plants.

Abstract: The nozzle structure for a root feeding device includes a ground inserting tube or pipe having a nozzle unit at the end thereof formed with an axially extended bore and radially extended fluid discharge passages intermediate the ends thereof. The nozzle unit is generally comprised of a pair of coaxially aligned cone sections with the outer cone section of a reduced size and the outlets of the radial passages positioned between the adjacent ends of the cone sections. The fluid discharged from the outer end of the axial bore acts to pre-soften or lubricate the soil for hard ground penetration; and the fluid from the radial passages assists penetration and is discharged into a receiving chamber formed about the nozzle unit, when in the soil, for ground dispersion annularly about the nozzle unit.

Abstract: This invention provides a fluid conducting device suitable for rinsing the interior of the bottom of pesticide containers. The device comprises a body having opposed ends with a fluid passage in the body, fluid inlet means in communication with a passage at one end of the body, container rupturing means at the other end of the body and extending therefrom and an abutment means separating the body from the container rupturing means. The fluid passage in the container rupturing means is in communication with the passage of the body, and the fluid discharge means in the container rupturing means is in communication with the fluid passage of the body. When the container is inverted and the container rupturing means is inserted into the bottom of the pesticide container to the stop provided by the abutment means, the fluid discharge means is disposed just slightly below the bottom of the container and is effective to discharge the fluid primarily against the interior of the bottom of the container.

Abstract: A mist generating nozzle has a cylindrical bearing member in which a plurality of distribution slots are formed. A cylindrical sleeve member is concentrically disposed about the bearing member, with an annular chamber defined therebetween. The sleeve member has a plurality of orifices communicating with the annular chamber and which extend transversely with respect to the radius of the sleeve member for imparting rotational motion to the sleeve member in response to the discharge of water through the orifices. The centrifugal force acting on the water discharged through the orifices particulates the water droplets into a fine mist or fog, in a substantially spiral pattern around the nozzle. In another aspect of the invention, the mist generating nozzle is incorporated into a firefighting tool, which includes a piercing member for penetrating a building structure.

Abstract: A fire fighting tool is described which is capable of both penetrating the wall of an enclosure, and dispensing a fire fighting agent into the interior of the enclosure. A drill bit or other penetrating device is carried at the forward end of an elongate shaft which is connected at its rear end to a drill motor or other appropriate actuating device. The shaft is surrounded by a barrel which receives a fluid fire fighting agent and includes a series of outlet openings at its forward end through which the agent is dispensed. The shaft is thus surrounded and cooled by the agent during the penetration operation. A leaky bearing is provided at the forward end of the barrel, and is specially configured along with the shaft and drill bit to induce a leakage of agent through the bearing and onto the bit and surrounding enclosure wall during drilling, thereby cooling the various parts and lessening the risk of an explosion. The barrel is designed to hold the tool in place once it has been inserted into the enclosure.

Abstract: The invention is a device for coupling an outlet port of a fire extinguisher containing a source of pressurized fire suppression chemical to the interior of a closed-off compartment 12 having a pierceable wall 14. The device comprises a cylinder 22 having a moveable ram portion 66 adapted to pierce the wall 14 upon the cylinder receiving the pressurized fire suppression chemical. The cylinder 22 includes first and second ends 26, 32, the first end closed off by a first wall 28, the cylinder 22 further having an inlet port 30 in proximity to the first end 26. A piston 50 is moveably mounted within the cylinder 22, forming a closed-off chamber 56 within the cylinder. The piston 50 includes a piston rod 64 coupled to the ram portion. The piston 50 further includes passages 68, 70 coupling the chamber 56 to the exterior surface of the ram portion 66.

Abstract: Fuel dumping valve for aircraft for fast emergency evacuation of fuel contained in the aircraft's fuel tanks, consisting of a valve head seated in a valve seat and mechanical or hydraulic linkage for opening or closing the valve from the pilot's seat. The valve may have hydraulically inflatable seals for completely sealing the valve against fuel leakage, and hydraulically controlled locking pins for holding the valve locked in the valve seat until deployment. An interlocking sequencing control mechanism is provided for retracting the locking pins, releasing the sealing pressure and activating the valve.

Abstract: A pressure compensated emitter for irrigation systems and the like includes a generally tubular hard plastic support body for mounting in a port or opening in an irrigation line with a flexible tubular flow control member mounted within the housing with a seal end sealingly engaging a seat in the outlet end of the housing with an inlet port extending toward the inlet opening in the housing with the flow control device being a flexible tubular member having an inlet section of a generally teardrop cross-sectional configuration of a first diameter and a tubular barrel of a second diameter of a generally cylindrical tubular cross section with the inlet section responsive to a first range of pressures and the barrel section responsive to a second range of pressures for regulating and maintaining a substantially uniform flow rate over a range of pressures.

Abstract: A valve device to control fluid through a passageway under a pressure head which may vary, has at least one vane which lies in the passageway to restrict the fluid flow. The vane is effectively flexible and resilient to deflect under fluid flow and so increase its restricting effect on increase in the pressure head and decrease its restricting effect on decrease in the pressure head so as to maintain a substantially constant flow output through the passageway.The valve device may be incorporated in a nozzle for insertion as one of a series along the length of an irrigation pipe, and the nozzle may be provided with a pointed head part and an outlet tube or cap.The device also has application in other forms of fluid control.

Abstract: A wall penetrating firefighting device, usable separately or as a part of an attack fire hose nozzle assembly, for penetrating the walls of buildings or other types of barriers to extinguish fires hidden by or within the walls or barriers. The device includes an elongated tubular member that is secured to a casing having a bore therethrough and adapted to be connected to a source of fire extinguishing agent under pressure. A discharge port in the distal end of the penetration member discharges a stream of fire extinguishing agent in a direction generally transverse to the axis of the penetration member when a valve in the casing is shifted to its open position. The distal end of the penetration member is conically tapered to facilitate manually forced penetration thereof through a wall or barrier.

Abstract: A baler has a preservative applicator assembly with an improved nozzle array for applying a volatile crop treating fluid to crop material as the crop material is being formed into a bale. The nozzle has a centrally disposed passageway which has a cross-sectional area greater than the minimum sum of the cross-sectional areas of a plurality of fluid dispensing openings in the end of the nozzle. Each of the openings includes a throat and a lip outwardly diverging from the throat. The nozzle array maintains the fluid under high pressure and aids in dispersing the fluid with a high velocity to enhance the retention of the fluid as a liquid while in the nozzle and to promote wide and uniform dispersing of the fluid throughout the crop material during the application.

Abstract: The invention concerns a drip irrigation emitter for mounting on a liquid supply conduit perforated with a suitable orifice.The emitter is of the type comprising a body (1) with an inside cavity and an elastic membrane (2) dividing the body inside chamber into two compartments, one an upstream compartment (5) and the other a downstream compartment (7) with intake and discharge apertures (6) and (8), respectively. The emitter of the invention is characterized in that the downstream compartment (7) is bounded by a converging, in particular a frustrom-of-cone wall (9) comprising at least one flow channel (10) extended at the membrane by a duct (11) issuing into the upstream compartment (5). Regulation is achieved by covering a variable length of the channel (10).

Abstract: A drip irrigation emitter having a body with internal structure for reducing fluid pressure to provide a low pressure trickle output and an inlet member providing a passage for water to the internal structure and adapted to connect the emitter to a supply hose. The inlet member has a frusto-conical barb portion integral with a neck portion that extends between the large end of the barb portion and the emitter body. A cylindrical portion extending from the small end of the barb portion, which has at least one inlet opening, is usable as a mechanical punch to enable the emitter to be attached with one simple operation to a plastic irrigation hose or lateral without prepunching holes therein.

Abstract: Apparatus for intermittently supplying a predetermined quantity of water at regular, predetermined intervals comprising: a water tank for accumulating and storing water; water feeding means and inlet valve means; float-actuated valve means within said water tank; a down pipe connected to said water tank and terminating in a tapered tube; a siphon tube from said water tank terminating in a tapered tube which extends together with the tapered tube of said down pipe into a venturi outlet; and, an ejector tube extending downwardly from said venturi outlet.

Abstract: A fluid flow control device particularly useful as a drip-irrigation emitter is described comprising a two-section housing in which a mounting section is adapted to be passed through the wall of a supply pipe with the housing main section disposed within the tube and the outer end of the mounting section open to the atmosphere. A disc is freely movable within the housing main section and includes a stem fixed to one face thereof and passing into the housing mounting section such as to provide a fluid passageway therebetween. The housing main section is formed with an opening facing the face of the disc to which the stem is fixed, the arrangement being such that when pressurized fluid enters the housing main section through the opening, the disc moves towards and away from the opening to control the flow of the fluid into the housing and thereby through the fluid passageway between the disc stem and the inner face of the housing mounting section.

Abstract: Modular fire fighting apparatus includes a power module having a turbine driven by fluid, such as water, introduced at a supply inlet to a housing for the module, a drive shaft driven by the turbine and extending from a coupling face of the housing and a fluid outlet disposed at the coupling face of the housing, and various penetrating and extinguishing tool modules each having a housing within which are disposed a fluid receiving inlet and a driven member. The penetrating and extinguishing tool modules are each adapted to be mounted on the power module such that the driven member is releasably engaged with the drive shaft and fluid supplied to the power module housing is delivered to the penetrating and extinguishing tool module housing via the fluid outlet of the power module housing and the fluid receiving inlet of the penetrating and extinguishing tool module housing.

Abstract: Apparatus and method for preventing the spontaneous combustion of a stack of stored organic and inorganic substances by injecting a control medium into selected areas of the stack. The apparatus comprises a source of a control medium such as air, steam, combustion gas or a salt solution, and injection nozzles connected to the source of control medium for injecting controlled quantities of the control medium into selected areas of the stack.

Abstract: A process for sealing underground walls so as to prevent water from seeping through the walls. A hollow pipe is inserted at a first position and a sealant material is injected through the pipe to effect a seal between a footing and the bottom of the wall. The hollow pipe is withdrawn vertically and progressively while injecting additional sealant material. Thereafter, the hollow pipe is indexed laterally and the wall sealed as before from the footing to grade level and this procedure is repeated until the entire underground wall is sealed externally.In a modified form of the invention, the hollow tube is withdrawn and then the sealant is applied through the opening created by the insertion and withdrawal of the hollow tube.

Abstract: A drip irrigation system which includes a flow control valve having an inlet opening which constricts in response to pressure increases to provide a uniform flow despite pressure variations. The inlet opening of the valve has a rectangularly cross-sectioned central section and end sections which are non-rectangular, such as triangular or semi-circular, in cross section. During normal flow conditions the rectangular central section of the inlet opening is pressed closed and irrigation liquid flows at a constant rate through the two end sections.

Abstract: Nozzles are mounted on the face of the plunger of a conventional hay baler for injecting a fluid into the mass of hay as it is compacted. The nozzles are connected to a tank holding the fluid through control valves and a metering chamber which serve to limit the period of injection to the compression stroke of the plunger and to limit the quantity of fluid injected.

Abstract: Upright cylinder buried underground has riser which is thrust upward to a raised position where the top is above ground. Motor in the top of the riser carries and rotates a sprinkler nozzle. Piston retracts riser, and during retraction, water flow washes the riser as it is drawn into the cylinder. An internal check valve prevents ground water from entering the system.