Abstract: An automatic fire extinguishing apparatus including a fire sensor, a swivel chamber and an expansible hollow rod secured to the chamber. When a fire is detected by the fire sensor, the swivel chamber is rotated about a vertical axis in accordance with the output of the fire sensor until the rod is directed to the fire source. Then a pressurized fire extinguishing agent contained in a bomb is introduced into the rod through the chamber to expand the rod toward the fire source. The expansion of the rod is stopped when the end of the rod is adjacent the fire source and the free end of the rod is opened, so that the fire extinguishing agent is discharged toward the fire source.

Abstract: A fire monitor formed by an outer tube that communicates with a water inlet and a coaxial inner tube connected to an outlet nozzle. Water flows from the inlet into the outer tube, and then around a semitoroidal bend formed by a baffle plate and a fairing into the inner tube for discharge through the outlet nozzle. The fairing is provided on the inner surface of the inner tube and the baffle plate has a curved periphery with an inner, continuous flat surface. The semi-toroidal bend minimizes turbulence in the water flow. Swivels are provided to permit horizontal and vertical adjustment of the direction of discharged water.

Abstract: An external mix miniature spray gun of the airbrush type obtains a spray of paint by directing a jet of gas from a source over a nozzle. A reducing valve for the flow of gas is connected at one end to the source and to an outlet at the other end for discharge into the body of the gun. The reducing valve includes a body of circular end profile with the inlet leading to first generally radial flow passages opening to the side of the valve body and second generally radial flow passages leading from the side of the valve body to the outlet. A sleeve is rotatably retained on the valve body by interengaging threads and spans between the first and second radial passages to define an internal space for gas flow therebetween. A tapered surface in the gas flow space on the interior of the sleeve is arranged to approach or withdraw from a portion of the valve body to enlarge or diminish the gap therebetween as the sleeve is rotated relative to the body.

Abstract: The invention provides a novel integrated body of an elongated form capable of sustainedly releasing vapor of a vaporizable substance contained in the body into the atmosphere, such as an aromatic compound, pesticide, fungicide and a sex pheromone as a means for the control of a pest. The inventive sustainedly vapor-releasing integrated body is very advantageous in the high efficiency of shaping into desired configuration and setting or installation in the field in large numbers by virtue of the good shape-retainability as a result of the integrated structure composed of a capillary tubing of a polymeric material filled with the vaporizable substance and a metal wire with plastic deformability and a sufficiently large cross section and integrated side-by-side with the capillary tubing to retain the latter in the compulsorily deformed disposition. The inventive integrated bodies are suitable for mass production in a relatively simple process.

Abstract: An improved electrostatic spray gun wherein the power pack for transforming a low voltage electrical signal from an external source to a high voltage signal for application to the gun electrode is wholly contained within the handle of the gun. The gun includes multiple interchangeable barrels for enabling the gun to spray airless atomized liquids, or air spray atomized liquid, or air-entrained solid particulate materials.

Abstract: A fuel injector is provided wherein an accumulating chamber is formed around a needle valve in a nozzle assembly housing to open and close an inlet port. An injection end control valve is disposed between the accumulating chamber and a fuel passage having communication with an atmospheric pressure side of the needle valve. The injection end control valve functions to introduce high-pressure fuel from the accumulating chamber into the atmospheric pressure side of the needle valve. Thus, rapid closing of the needle valve is enabled.

Abstract: The injection device has a nozzle body with a needle valve controlled by id. At the front end of the nozzle body there are, in the case of a single hole nozzle, one injection channel and in the case of a multi-hole nozzle, several injection channels which may be at any angle to each other. In the narrowest cross section of the injection channel suction slots lead into the combustion chamber. Air is drawn in from the combustion chamber by the jet of fuel leaving the injection channel. This air mixes with the fuel in the narrowest cross section of the injection channel so that, at the base of the injection jet, there is a two-phase flow having particularly favorable properties for the subsequent mixture formation.

Abstract: An internal burner or equivalent device for discharging the hot products of combustion as an axial flame from the discharge end of a venturi type nozzle has a flexible or relatively inflexible wire rod presented to the combustion product stream in the vicinity of the flame jet immediately beyond the exit of the nozzle at an angle less than a critical angle such that the wire is melted and atomized as though the wire has been fed axially into and along the flame jet axis. With a flexible wire rod, the impingement by the flame spray causes the wire rod to curve so that the tip of the wire is axially aligned with the flame jet axis. Where the wire rod is rigid, the intersection of the wire rod and the flame jet at an angle less than the critical angle causes melting and uniform breaking away of the melted particles of the wire rod as very fine droplets uniformly distributed within the flame jet gas flow.

Abstract: An improved thrust reverser/exhaust nozzle assembly has a plurality of blocker devices located in the divergent section of the exhaust nozzle and a plurality of deflector devices located in the convergent section of the nozzle. The blocker and deflector devices are linked together such that they move simultaneously and maintain a substantially constant engine flowrate during transitions of the engine between forward and reverse thrust conditions.

Abstract: A nozzle for spraying a liquid comprises a body formed with a bore extending therethrough and a core removably mounted on the top of the body. The core is formed with a rib on the top thereof and with a notch at each side of the rib. An orifice plate is mounted on the core and is formed with a rib on the upper side thereof. This rib on the orifice plate is hollow so that it may receive the rib on the core. The rib on the orifice plate is formed with a hole in the center thereof so that the liquid may pass up through the bore in the body, through the notches in the core, into the hollow rib on the orifice plate, and spout out through the hole in the rib on the orifice plate in a fan-like shape.

Abstract: Disclosed is an improved back flash preventing device for a powder spray torch wherein the improvement comprises a structure constructed to thwart attempts by the user to block the outlet end or atmosphere vent of the back flash preventer. This is accomplished by providing the outlet of the vent with a guard so constructed as to prevent the user closing the outlet with his finger, a covering tape or the like.

Abstract: An actuator for a container that dispenses liquids containing a suspension of particulate material that keeps itself from clogging comprises a mechanical break-up chamber to emit a fine spray and includes a continuous emission from an orifice which keeps the chamber free from accumulation of solid particles.

Abstract: The present invention relates to a novel design for a perforated hose sprinkler which enables the hose to automatically rewind itself after use and after being released from a secured position in the ground. The mechanism includes a frame member with a reel contained within the frame and rotatably supported thereon on a fixed shaft. The reel further comprises a central core section. A spring is fixedly secured at one end to the fixed shaft and fixedly secured at its other end to the core of the reel, and is wound between the fixed shaft and the core. A sprinkler hose which is generally rectangular in cross-section and contains a multiplicity of pin holes along its length is wound onto the reel. The frame further comprises a slotted member through which the sprinkler hose can pass and which serves to provide tension to prevent the hose from retracting and further provides an effective seal to prevent water from running into any portion of hose that remains unwound on the reel.

Abstract: An improved low volume spray device for an irrigation system comprises upper and lower separately molded plastic members that may be assembled before or after the lower member is installed on a fluid conduit. The lower member, which is secured within the conduit, is molded with a conical deflector portion that receives the main force of the liquid stream from the conduit. An upper head member snaps onto the lower member and has a peripheral series of spaced apart teeth adapted to receive liquid from the conical deflector and separate it to form a uniform spray pattern of radially directed streams. Since the main fluid force is on the conical deflector, fluid pressure cannot act to separate the upper member when in use.

Abstract: A control apparatus is disclosed for use in an irrigation system having a plurality of conduit sections pivotally joined at sets of adjacent ends and selectively operable drivers for moving the conduit sections in a forward direction. Each control apparatus maintains the relative alignment of a pair of joined conduit sections. It includes a conduit misalignment indicator having two indicating portions which are directly relatable in position to the relative alignment of the two conduit sections. Further, Hall-effect sensors positioned on one indicating portion opposite from a magnet positioned on the other indicating portion provide for sensing of the relative alignment of the conduit sections. A digital electrical circuit converts the sensor signals into a control signal for initiating operation of the driver when the conduit sections are in lagging misalignment and terminating operation when the conduit sections are in leading misalignment.

Abstract: An impact drive sprinkler is provided for projecting a water stream in a generally upward and outward direction from a water supply riser. The sprinkler includes a sprinkler body formed from a length of tubing mounted for rotation on the riser wherein the tubing is bent at a selected angle to define a smooth, substantially uninterrupted flow path from the riser to a discharge nozzle. An impact drive assembly is mounted on the tubing and includes a spring-biased drive arm formed preferably from inexpensive stamped metal parts for interrupting the projected water stream at regular intervals and for impacting the tubing to rotate the tubing in increments about the riser. The drive assembly is mounted on the tubing at a position downstream from the tubing bend such that the construction and operation of the drive assembly is unaffected by the magnitude of the angular bend in the tubing.

Abstract: An atomizer for coating an object with powder includes a spray gun with a central feed passage and an atomizer gas flow passage with an outlet radially outside the feed channel. Both the outlet from the feed channel and the atomizer gas passage outlet are located at a widening atomizer gas outlet. Upstream of the spray gun is a body with a plurality of obliquely inclined, axially extending flow channels in it which impart spiral rotation to the gas-powder mixture entering the feed channel in the spray gun. The housing for the body having the inclined flow channels in it is conically tapered upstream and downstream of that body, and upstream of that body there is an upstream facing conical element for directing flow into the flow channels.

Abstract: A hose arrangement for use in a car wash of the type which provides a hose with a spray nozzle on the end and means for mounting the hose for rotation around a central pivot point including a boom which extends away from the pivot point and rotates around the pivot point. The boom is formed of a pair of flexible wires arranged on either side of the central pivot and each having coils at a position intermediate the length so as to allow the wire to flex downwardly out of the horizontal plane when the hose is pulled. The central pivot can be arranged to pivot about an axis at a small angle to the vertical whereby the boom has a lowermost position at one point in its rotation to which it tends to rotate.

Abstract: An electrically operated injector provided with a mobile cup-shaped armature which acts as the closure element for the injection nozzle and is guided internally by a tubular element which also acts as a stop for the armature lifting stroke. The armature also has a base wall provided with bores with skew-inclined axes for feeding fuel to the injection nozzle.

Abstract: Discrete volumes, or slugs, of liquid are accelerated to high velocities utilizing energy stored by compressing the liquid. Liquid is forced into a pressure vessel already filled with liquid to effect the compression. A slug of liquid is ejected from the pressure vessel into a cumulation nozzle by the energy stored in the compressed liquid when a valve is rapidly opened. The valve is opened when an opening force, generated by the compressed liquid, exceeds a closing bias. By repetitively introducing highly pressurized liquid into the pressure vessel, the valve automatically cycles to generate a series of pulsed liquid jets. Rapid opening of the valve is aided by an extension on the valve member which sealingly slides inside the passage of the cumulation nozzle to block release of liquid until the valve member accelerates sufficiently that the required opening rate is achieved as the extension clears the nozzle passage.