Abstract: An injection valve for fuel injection systems in internal combustion engines which comprises a movable valve element cooperating with a valve seat disposed in a nozzle body, with a guide bore provided downstream of the valve seat. A swirl insert is partially compressed in the guide bore and disposes open swirl channels in the direction of its circumference. The swirl channels extend in an axial direction from one end of the swirl insert to the other, are slanted toward the longitudinal shaft of the injection valve and discharge in a tangential direction into a preparation bore. The swirl channels serve simultaneously as metering channels whose throttling length is adjustable by displacing the swirl insert inside the guide bore.

Abstract: According to the invention a seal is established between a rotary spray arm and a stationary pedestal support for the spray arm. Liquid from a pump, which forcibly delivers liquid to the spray arm is forced between cooperating parts of the spray arm and spray arm support in such a manner that a sealing split ring is urged both axially and radially relative to the rotational axis of the spray arm into sealing engagement with surfaces on both the spray arm and spray arm support.

Abstract: An improved rocket nozzle liner for solid fuel rockets which is constructed from an inner liner of silicon carbide, a layer of highly anisotropic graphite and an outer shell of heat resistant material. The layer of anisotropic graphite permits thermal expansion of the silicon carbide, thus preventing the build up of thermal stresses and resulting fractures.

Abstract: Drip irrigation apparatus including a continuous outer tube and a plurality of low rate determining inserts located at desired locations therealong interiorly of the outer tube, the inserts being selected to have one or more of the following features; an outlet chamber which extends over a significant portion of the circumference of the outer tube; a configuration which allows substantial flattening of the outer tube when not in use, a pressure responsive flow controller; a pressure reducing pathway formed solely or partially by the insert and an air pocket spring defined wholly or partially by the insert for cooperation with a pressure responsive flow controller, thereby providing a flow controller which integrally formed as a single unit.

Abstract: An irrigation spray nozzle apparatus has a base member for attachment to a water line, which has a passageway therethrough. A nozzle is attached to the base member to control water flow and to direct water from the outlet of the passageway through the base towards a water deflector pad removably attached to a water deflector pad support to spray water passing from the nozzle. At least one arm is attached to the base and to the water deflector pad in position in line with the outlet of the nozzle. The water deflector pad can be removed and a hose attached through a passageway through the pad support or to an extension on the pad support itself, to convert the spray nozzle to an irrigation hose discharge device.

Abstract: A protective collar entirely of a resilient, cushioning material such as a thermoplastic rubber and having the shape of an annular ring which has an open end which may be sleeved over an aerator mounted at the tip of a faucet spout. The discharge end of the collar has an aperture formed therein with a diameter greater than that of the discharge outlet of the aerator so that the collar does not interfere with the flow of water through the aerator. At the same time, the diameter of this aperture is less than that of the leading edge of the aerator so that the collar, when in position for use, abuts this edge, thereby protecting fragile and easily chipped objects impacting upon either the underside of the aerator or upon its vertical sides.

Abstract: A rotary type electrostatic spray painting device including a rotary shaft driven by an air turbine. A reflecting face portion and a non-reflecting face portion are formed on the rear end face of the rotary shaft. A rotating speed sensor is arranged adjacent to the rear end face of the rotary shaft to detect the rotating speed of the rotary shaft from light reflected from the reflecting face portion. The amount of pressurized air fed into the air turbine is controlled in response to the output signal of the rotating speed sensor so that the rotating speed of the rotary shaft becomes equal to a desired rotating speed.

Abstract: Apparatus for connection with a sill cock for communicating water under pressure from the sill cock with a hose having a lawn sprinkler communicating therewith comprising a water control unit having a female coupler for connection with the sill cock, a male coupler for connection with the hose, a valve between the couplers and a battery operated valve mechanism operable in response to the connection of the electric current thereto for effecting movement of the valve from a closed position into an opened position, and a manually portable programming unit containing a battery operated programming keyboard, a battery operated display, and batteries operatively connected therewith.

Abstract: Actuation circuitry causes emergency energization of a vehicle fire and explosion detection and suppression system when the vehicle is not in operation. The actuation circuitry includes a simple fire and/or explosion detector which draws a small amount of power relative to that required by the main fire and explosion detection and suppression system when operative. When the detector detects an event which may be a fire or explosion the actuation circuitry activates the main system which analyzes the event by its more sophisticated circuitry and acts accordingly. When such event is no longer detected by the detector of the actuation circuitry, the main system is shut down.

Abstract: A hot-melt adhesive dispenser having spray nozzles connected to a nozzle manifold receiving hot-melt adhesive material from a heated dispenser head. The spray nozzles have a pair of flow paths, one within the other, terminating near the nozzle outlet. A stream of low pressure air flows from a valve, through a plurality of tubes to at least one hollow gas injection conduit in the nozzle forming an inner flow path. Hot-melt material flows through a dispensing bar to a nozzle body cavity and opening defining the outer flow path. Hot-melt material is projected from the nozzle, broken up into droplets by the expanding gas, producing a spray within about three inches of the nozzle outlet. A pair of spaced apart dispensers with spray nozzles are used to spray seal the upper and lower flaps of cartons.

Abstract: A fluid stud and resistor design for electrostatic spray guns has a fluid passage which is shaped like a cloverleaf in cross section. By providing this cross-sectional shape, the resistor is allowed to reside in one wall of the fluid stud and run, nearly, the complete length of the stud, thereby providing an increased effective resistor length, thus reducing flash-over and providing a smaller contact wire, thereby reducing capacitance. The design of the fluid needle and electrode is provided so as to reduce the length of the electrode wire, thereby reducing capacitance and allowing an increased diameter wire for increased durability.

Abstract: A feed device for automatically controlling the operation of a snow gun, the device having an axially displaceable slide to selectively feed air and water under pressure to the snow gun and bleed water from the device, the device incorporating a control system including a geared motor for moving the slide, a conversion module for operating the geared motor in accordance with the outputs of sensors positioned to determine outlet water pressure, temperature and humidity at the site of the snow gun, the conversion module being operatively connected to a central computer adapted to control the operation of a series of snow guns and feed devices located along a ski slope.

Abstract: A self-cleaning sprayer head having the capability to deliver a radially directed spray is disclosed. The sprayer head (10) includes a hollow, elongate casing (16), a flanged outlet end (28), and a plunger (42) mounted for sliding reciprocal movement within the casing. A spring (48) holds the plunger (42) in a retracted position. A flexible disc (38) connected to the outlet end of the casing defines an outlet gap (60). The disc (38) is connected to the plunger (42) for movement between a flush position, wherein the outlet gap (60) has a maximum width, and a spray position wherein the gap (60) has a minimum width. The disc (38) is configured to assume the flush position when the plunger (42) is retracted. When pressurized liquid is introduced into the casing (16), the plunger (42) moves in opposition to the spring (48) from its retracted position, through an intermediate position to a spray position. Simultaneously, the pressurized liquid passes through the ports (58) in the plunger and out through the gap.

Abstract: A powder spray gun for applying particulate powder material onto a surface includes a gun body having a venturi transfer pump which receives air-entrained particulate powder material from a supply conduit and distributes the powder for discharge into a discharge conduit connected to the gun body. A spray head formed with a powder discharge slot is mounted to said discharge conduit. The discharge conduit is formed with a bend, preferably of about 90.degree., to concentrate the powder material along an outer wall formed by the bend for delivery in a concentrated stream to the spray head. A deflector is preferably mounted within the discharge conduit to direct the concentrated powder stream into the spray head in a predetermined manner. The powder discharge slot, which has a predetermined width and is formed by angled side walls meeting at an apex, receives the concentrated powder stream from the discharge conduit and sprays the powder in a wide, uniform spray pattern onto a surface.

Abstract: This invention relates to a nozzle assembly used to atomize liquids within air, particularly useful for coating die surfaces with die release lubricants. The atomizing nozzle includes an internal poppet valve element which is operated to control the flow of lubricant in response to a control air pressure signal. Blow air is initially transmitted to a pre-atomization area where some air is introduced in the lubricant which is thereafter introduced into the main blow air stream. This pre-atomization function has been found to enable fine atomization at low flow rates of lubricant. The pre-atomization bore further enables the device to be self-cleaning by clearing out the lubricant passage. Fine control over lubricant flow rate is provided by an elliptical shaped orifice which is closed off by the end of the poppet valve element.

Abstract: A venturi spray nozzle having a cleaning fluid manifold with a plurality of fingers extending into a plurality of venturi nozzle channels of an air manifold such that the air manifold educes cleaning fluid from the cleaning fluid manifold and projects it on a surface to be cleaned. The cleaning fluid manifold is centrally positioned in the air manifold and a pressurized source of cleaning fluid is used.

Abstract: A container for an air freshener having a gabled top. Openings sealed with removable tape are provided in the carton to expose the contents to the air. The openings may also comprise reverse cut slots which expose the interior when the consumer presses on the slots. The gable top container is formed from a single ply of foil laminated lined paperboard. In the preferred embodiment a plurality of openings are formed in the paperboard and are covered by a release tape which can be removed to permit exposure of less than all of the openings depending on the amount of air freshener to be exposed to the atmosphere.

Abstract: In a high pressure washing apparatus with a spray handle and a flexible hose leading to it, in order to create the possibility of rotation between the hose and the spray handle, it is proposed that the spray handle should display a barrel, for connecting to the hose, into which can be inserted in sealed fashion a hose nipple connected to the hose end, that a bearing surface be provided on the spray handle, against which rests a flange connected with the hose nipple, and thereby preventing the hose nipple from being pulled from the barrel, and that the bearing surface and/or the hose nipple flange surround the hose nipple in ring form, and be rotatable with respect to one another around the longitudinal axis of the hose nipple.

Abstract: Upwardly diverging, transversely opposed barrels at the rear of the vehicle are supported on a transversely swingable discharge assembly. The barrels have blowers at their lower ends and receive metered amounts of particulates from a hopper through a metering device controlled by the speed of the vehicle on which the swingable discharge assembly is mounted. The assembly is so weighted that it remains upright. Split spouts on the ends of the barrels control the distribution and nozzles wet the emerging particulates. A gate selectively blocks metering of particulates to one barrel.

Abstract: In a plural component foam dispensing apparatus there is provided an easily removable and replaceable combination nozzle-mixing chamber that is formed of a low friction, slightly deformable material with a first front contact surface against which is applied force to load the second rear contact surface against the contact surface of the nozzle seat to securely hold the combination nozzle-mixing chamber in place. The core of the combination nozzle-mixing chamber is not axially restrained on each end.