Abstract: A rotary, impulse water sprinkler having a rotatable water dispensing head includes a water nozzle for directing a stream of water with a movable splash plate extending over the outlet of the nozzle to selectively deflect the water stream issuing from the nozzle to control the distance that the water stream will project from the water nozzle outlet. The impulse water sprinkler has a pivotally mounted impulse device with a vane at one end thereof adapted to be selectively disposed in the water stream from the nozzle outlet thereby causing the dispensing head to rotate. A rotation speed control device is operatively associated with the impulse device to control the amount by which the impulse vane is disposed within the water stream.

Abstract: A high speed gas valve (10) comprises an annular base member (14) having a plurality of plenums (18--18) into which a gas is admitted through a passage (42) in an overlying coverplate (16). Within each plenum is a conductive disc (26) which seals an orifice (20) leading from the respective plenum into an annular channel (39) in the top surface of a plate (34) in intimate contact with the bottom of the base member. The channel (39) connects each of a plurality of inclined nozzles (36--36) in the plate to each of the plenums (18--18). Underneath each disc (26) is a portion of an electrode (22). When a time varying voltage is applied to the electrode, a time varying current passes therein causing an eddy current to be induced in each of the discs (26--26) which lifts them simultaneously out of sealing engagement with the respective orifices (20--20). As a result, gas is discharged from the nozzles (36--36) as inclined gas streams (46--46) which form a shell (48).

Abstract: An improved adjustable arc sprinkler head (2) includes a pop-up riser (20). Riser (20) comprises a housing (26) having a rotatable nozzle assembly (28) carried adjacent the top thereof. A driven gear (50) is fixed to nozzle assembly (28) and cooperates with a drive train contained inside a motor compartment (30) in riser housing (26). An adjustment member (58) is normally rotatably locked to driven gear (50) by matching serrations (69) and (70). Nozzle assembly (28) is moveable downwardly relative to riser housing (26) sufficiently far to disengage serrations (69) and (70) and allow driven gear (50) to be rotated relative to adjustment member (58). This rotation varies the circumferential distance between two stops (56) and (64) carried on driven gear (50) and adjustment member (58) to vary the angular extent of the arc segment being watered by sprinkler head (2).

Abstract: An improved nozzle tip (30) which provides enhanced ignition and stabilization of pulverized fuel flames in furnaces operating at low load. The nozzle tip (30) comprises open-ended inner and outer shells (32,34) mounted to the fuel delivery pipe (12) and defining a flow passageway within the inner shell through which the pulverized fuel is directed into the furnace and an annular flow passageway (50) between the inner and outer shells through which additional air is directed into the furnace. A pair of diverging splitter plates (41,42) are disposed within the inner shell (32) so as to divide the flow passageway therethrough into two separate, diverging subpassages (52,54) so that the pulverized fuel stream discharging from the fuel delivery pipe is split into first and second streams (60,70) which pass from the nozzle tip (30) into the furnace in a diverging manner thereby establishing an ignition stabilizing pocket in the low pressure zone (80) created between the diverging fuel streams.

Abstract: An atomizing apparatus comprises a body having a chamber into which liquid is supplied. A nozzle member is secured to the body to define a front vibrating member of said of the chamber, the nozzle member having at least one nozzle opening. A capacitive piezoelectric transducer is secured to the nozzle member for producing pressure rises in the liquid to cause the portion of the liquid in proximity to the nozzle opening to be ejected therethrough to the outside. The piezoelectric transducer is connected to an inductance element to form a resonant circuit. An amplifier is connected with the resonant circuit to form a self-oscillating loop to amplify the signal in the loop to sustain oscillation at a frequency variable as a function of the temperature-dependent capacitance of the piezoelectric transducer.

Abstract: A sprinkler comprising a plurality of horizontally extending chambers each including a plurality of spray nozzles oriented at different angles, a drive for cyclically driving the sprinkler about its horizontal axis, and water-steering means for selectively steering the water to the plurality of chambers while the sprinkler is cyclically driven about its horizontal axis. In one described embodiment, the plurality of chambers are oscillated about the horizontal axis of the sprinkler; and in other described embodiments, the plurality of chambers are rotated about the horizontal axis of the sprinkler.

Abstract: A dispenser for releasing a volatile active substance from a carrier material that contains the active substance in liquid form in a receptacle is impermeable to liquid, said dispenser comprising a base circular part with supporting members for said carrier and sidewall sections on which an upper circular part with cylindrical sidewall, pierced by side apertures for the emission of the volatile active substance, is pivoted. The upper circular part has on the inner disc-shaped surface thereof one or more decentrally positioned flexible blades which are able to pierce the sheath of the receptacle containing the active substance or to impale it on a spike by rotating the circular parts relative to each other in order to activate the carrier material by impregnating it with volatile active substance.

Abstract: A diffuser for air or other fluids has a rigid body with an upper disc portion having a series of radially projecting fingers about its perimeter. The fingers are relatively narrow and blunt. A diaphragm formed of a soft elastomer has a rim portion which receives the fingers. The diaphragm overlies the disc and normally closes a central opening in the body. Spaces at the base of the fingers are not covered by the rim portion of the diaphragm and air or other fluid escapes through those spaces when it is admitted under pressure through the central opening in the body. A circular cylindrical wall depends from beneath the disc at the bases of the teeth to discourage the fluid from collecting beneath the disc. In another embodiment, the spaces through which the fluid passes are covered by an open cell foam in the form of a ring that surrounds the wall and that is held in place against the rim portion by a plate mounted to the body and seated against the bottom of the wall.

Abstract: An intermittent swirl type injection valve having a spray angle, capacity coefficient and fuel spray travel distance set so that the valve produces optimum engine operating conditions, with the spray angle, capacity coefficient and fuel spray travel distances being determined taking into account the gap area A.sub.c, the spray hole diameter d.sub.e, and the area A.sub.g of tangential passages in the valve. The injection valve includes a valve body and a valve needle slidably fitted in a valve hole formed in the valve body. A spray hole in the valve body merges with a valve seat provided at an end of the valve hole, and the spray hole is shaped to receive the lower end of the valve needle. Tangential passages swirl the fuel when the needle valve leaves the valve seat to open the valve to spray fuel substantially conically through the spray hole. The injection valve is designed so as to satisfy the following conditions:.alpha.=20.degree. to 75.degree.,d.sub.e =0.3 to 1.2 mm,and ##EQU1## where .alpha.

Abstract: An isolator for electrically isolating an electrostatically charged, electrically conductive coating material supply line from a grounded source of conductive coating material while continuously transferring coating material from the source to the supply line. The isolator includes a receptacle for a charged coating material reservoir and an insulative housing surrounding the charged coating material receptacle. The coating material in the receptacle is fed through an outlet to the supply line for an electrostatic coating device, which is electrostatically charged. Due to the conductive nature of the coating material, the electrostatic potential at the coating device is coupled through the coating material, and the reservoir of coating material in the receptacle is likewise electrostatically charged. The coating material from the grounded coating material source is coupled to a grounded nozzle assembly in a housing which is positioned above the charged coating material receptacle.

Abstract: An apparatus for injecting fuel into combustion chambers, in particular of self-igniting internal combustion engines, is proposed, in which a fuel injection nozzle generates an aimed fuel spray and in which an air guide device and a heating device are provided. The fuel being injected is accompanied by an air flow which passes the heating device. The heating device has at least two heating elements of different effectiveness, of which at least one element serves for rapid heating and the other element is provided for continuous use.

Abstract: Disclosed are central-pillar assemblies wherein the various components are precision assembled at a factory location in a modular form for safe shipment to remote farmsteads and there easily reliably installed by relatively unskilled personnel. The assembly comprises an upwardly convergent tubular column serving both to structurally support and to supply water to an outflow-elbow portion for the irrigation apparatus, the tubular column being intersected by a water inlet-pipe and by a slanting oblique-pipe. There is a linear drive-conduit for the apparatus electrical commutation portion and taking a slanting posture wherein it is surrounded by and is in water impervious sealing relationship to the oblique-pipe and to the outflow-elbow. Housing for the electrical commutation is disposed below the oblique-pipe and is securely attached to the tubular column.

Abstract: A fuel injection nozzle for internal combustion engines having a cartridge filter provided with two groups of longitudinal grooves, disposed in a fuel conduit one of which groups of longitudinal grooves originates at one end of the filter while the other group originates at the opposite end of the filter. All longitudinal grooves terminate in a central section of the filter. The fuel conduit and the reduced diameter of the central section of the filter define an annular slit. The longitudinal grooves have a cross-section decreasing over the extent thereof to their termini, so that any excess and harmful amounts of fuel in the filter can be decreased, while maintaining the same external diameter of the filter for purposes of filter replacement in existing fuel injection nozzles.

Abstract: An improved rotary drive sprinkler is provided for rotatably driving a pop-up spray head in a stepwise manner through a full-circle or reversibly within a selected part-circle path. The sprinkler includes a reversing trip mechanism having a pair of spaced-apart stops rotatable with the spray head and defining preset end limits of a part-circle path, wherein a stationary trip wire is engageable with the stops to switch an internal rotary drive assembly, such as a ball drive assembly, between forward- and reverse-drive operation. The trip wire flexes to accommodate forced spray head rotation to a maladjusted position beyond the end limits and, upon subsequent sprinkler operation, rides over ramped surfaces on the stops for automatic return to reversible operation between the reset end limits. Alternatively, the stops can be set in side-by-side relation with their ramped surfaces oriented for the trip wire to ride resiliently thereover without switching of the rotary drive assembly.

Abstract: A fire-retardant appliance, such as a fire blanket or an article of fire-retardant clothing, formed from a sheetlike fire-retardant cloth. This cloth comprises a thin, flexible, sheetlike structure formed by a thin, flexible carrier, such as nonwoven polyester, impregnated with a hydrous gel. When used as a blanket, a release film preferably covers one surface of the blanket and is readily removed therefrom when the blanket is readied for use. When used as a clothing article, a lining film covers one surface of the blanket and is tightly adhered to the gel layer, which lining film defines the inner surface of the clothing article. A release film can also be provided for removably covering the outer surface of the clothing article.

Abstract: A flow control nozzle with a nozzle body arranged at one side of a joint body and a driver arranged at the other side thereof. The nozzle body comprises a nozzle chip having an orifice at the center of the front end, a cone chip with turning grooves which is in abutting engagement with the tapered face within a cavity of the nozzle chip, and a control rod fitted slidably in an axial through-hole of the cone chip and has one end adapted to close the orifice. The driver comprises an electromagnetic plunger and an electromagnetic coil. The control rod and the electromagnetic plunger are biased toward each other by springs. This nozzle permits the proportional control of the quantity of spray to be performed.

Abstract: There is disclosed herein a liquid spray gun which may be used for spraying paint. The gun includes a piston pump for withdrawing liquid from a reservoir and providing a force for spraying the liquid. The gun also includes a nozzle for receiving liquid from the piston and spraying the liquid under pressure. The piston pump includes a collection port for accumulating leakage liquid or flow from within the pump. A fluid circuit collects leakage liquid from the collection port and delivers the leakage liquid to a position forward and adjacent the nozzle. The fluid circuit includes a conduit having an inlet end connected to the collection port and an outlet end positioned adjacent the nozzle. The high velocity spray creates a low pressure area adjacent the nozzle and a venturi effect in the fluid circuit means for cooperation in drawing the liquid from the collection port to the nozzle.

Abstract: A multiple pattern spray nozzle is provided for connection to a supply of water under pressure, wherein the spray nozzle is adjustable upon movement of a single selector ring to one of several different spray pattern settings. The spray nozzle comprises a nozzle housing for mounting, for example, onto a hose end trigger valve or the like and supporting a stem unit for receiving the supply of water under pressure. A pair of flow control sleeves are carried by a perforate faceplate for sliding movement relative to the stem unit and nozzle housing to define different water flow paths leading respectively from the stem unit to different nozzle outlets formed by the faceplate in cooperation with the stem unit and nozzle housing.

Abstract: A fiberglass spray nozzle arrangement is described for controlling the spray flow configuration of a resin-catalyst mixture which is atomized exteriorly of the nozzle. Resin nozzle, catalyst nozzle and control air nozzle devices are included in spaced apart relation in this nozzle arrangement. The resin nozzle sprays resin in a spray stream which is intersected by control air jets from the flow control nozzle and catalyst spray from the catalyst nozzle in series. The resulting spray mixture from a continuous flat fan having no splits or tails at the work.

Abstract: A spray wand for cleaning the viewing surface of a rearview mirror on a vehicle. The wand is constructed of a flexible material enabling it to bend under pressure in an accurate manner to cause air and/or fluid dispensed from the wand nozzle to sweep the mirror surface. The rearview mirror is positioned in order to deflect a substantial part of the spray onto the side glass of the vehicle. Thus, both the surface of the rearview mirror and the side glass of the vehicle are cleaned by the spray wand.