Abstract: An electrostatic spray gun (10) for the spray application of electrically conductive materials includes a shield (24) to prevent the build-up of electrically conductive flash deposits on preselected non-conductive surface areas (26) of the gun (10). By prohibiting the build-up of electrically conductive flash on preselected areas of the gun surface, the shield (24) is effective in preventing the completion of an electrical circuit between a charged electrode (18) and an electrically grounded gun support member (22). The gun of the present invention is particularly effective in the high volume spray deposition of electrically conductive paints.

Abstract: A high pressure gas flare using the Coanda effect has a noise attenuator surrounding the high pressure gas outlet slot. The noise attenuator is in the form of one or more upwardly diverging frusto-conical shields which may be spaced apart or closed with the body of the flare. The attenuator is particularly useful for steam driven flares.

Abstract: A right angle nozzle assembly for use with a fluid dispenser. The assembly includes a nozzle body having a nozzle tip disposed at a right angle to the longitudinal axis of the body. The body defines an integral distal projection that projects past the tip so as to protect the tip. The projection includes an alignment slot receivable of a tool so that the direction of the dispensation can be visually perceived as well as selectively set.

Abstract: In order to improve upon the prior arrangement of a valve within a liquid distributor head for a mixing pre-heater degasifier it is proposed that a valve containing a valve plate, valve shaft, valve spring and spring plate, is arranged within the mixing pre-heater centrally within a deflection screen or baffle and at the same time the valve is surrounded by a protective housing in order to prevent that, in the event of possible rupture of the valve spring any broken pieces thereof will drop into the mixing pre-heater.

Abstract: An automatic safety system is built into a pneumatic motor actuated dispensing gun to prevent the gun from dispensing liquid material whenever the nozzle of the gun is loosened or removed from the gun body. The safety system comprises an air flow passage contained internally of the gun body for connecting the pneumatic motor to a normally sealed surface located between the nozzle and the gun body. Removal or loosening of the nozzle relative to the body, breaks this sealed surface and results in leakage of sufficient air pressure to atmosphere as to prevent actuation of the pneumatic motor and thus opening of the normally closed flow control valve of the gun.

Abstract: In a distributor for coating powders for electrostatic coating apparatus, an insulator shield member is provided on top of the powder distributor disk, preventing accumulation of charged powder thereon which might otherwise result in uneven distribution of powder from the distributor.

Abstract: An improved drift free spraying apparatus adapted for movement in connection with a vehicle and having a spray bar mounted within a bottomless, rectangular, box-type housing in communication with a fluid pump and reservoir assembly and adapted for emitting fluid in a mist configuration upon the surface to be sprayed through nozzles provided in the spray bar, the improvement comprising an elongated, bottomless, rectangular, box-type housing having first and second outer sections hingedly attached to a center section, an individual spray bar mounted within each section, means coupled to each spray bar for individual control of the emitting fluid to the spray bar, and means coupled to the first and second outer sections for selectively raising and lowering each section.

Abstract: A device for improving the control of the shape of a parison of a blow molding machine. The device has an inner nozzle positioned below the lowermost level of the parison and directed upwardly toward the open end of the parison. The device may be adapted to pivot so that a deflector plate is moved below the finished part.

Abstract: A safety airless spray tip is disclosed having an integral guard extending from the forward end thereof to prevent accidental human injection by the liquid being sprayed. The guard comprises U-shaped wire members located on opposite sides of the spray opening to cooperatively define a protected three-dimensional space through which the emitted spray fan passes, the protected space being of sufficient dimension to prevent the injection of human skin pressed against the guard.

Abstract: A sprayer which includes a plastic bag having in its upper end a perforated pipe and adapted to receive the end of a syringe and a draw string at the bottom for securing the bag around a flower pot to retain therein insecticidal sprays or powder.

Abstract: An elongated burner, which produces a stream of metal oxide soot, comprises three adjacent housings. A centrally disposed housing contains a linear array of orifices for issuing a gas-oxygen mixture to produce a linear flame. Disposed on opposite sides of the central housing are two housings having orifices for issuing into the flame two linear streams of metal halide vapor. Gaps between the central and outer housings permit air to be aspired for stabilizing the flame. Additional flame stabilization may be achieved by providing a shield along the entire perimeter of the halide vapor streams to prevent the random aspiration of air into the sides of the flame.

Abstract: A shielded spray apparatus for confined spraying of material, as plaster, paint, varnish or the like, usable to spray a large small area or when spraying is done under a windy environment. The apparatus includes a truncated housing defining an isolated spray chamber. The housing has a large planar open end defined by the forward edges of housing sidewalls. A rear opening in the rear center of the housing is smaller than and coplanar to the forward opening and closed by a flexible panel. The panel has an aperture in which is mounted a portion of the nozzle of a spray gun whereby material sprayed from the spray gun is directed through the chamber of the housing toward the forward open end when the forward open end is placed adjacent a wall or surface.

Abstract: Apparatus for attachment to a hand operated spray gun, comprising a cylindrical rotatable member having a spray orifice therein, which is rotatable between a spraying position and an orifice cleaning position, the rotatable cylindrical member having a metallic sealing member surface of matching shape and adjacent thereto, and a further resilient sealing member for permitting leakproof attachment to a spray device. The rotatable spray member is actuably coupled to a safety tip guard so as to become disassembled if the safety tip guard is removed.

Abstract: A retractable environmental seal for use in sealing the opening of the exit cone for a rocket nozzle comprising a diaphragm-like cover having a central region adapted to be seated in sealing relation with the periphery of the opening and characterized by radially extended failure zones for facilitating a pressure-induced rupture of the cover, and a plurality of angularly spaced tension springs connected with the peripheral portion of the cover for retracting fractured segments of the cover from the opening subsequent to a pressure-induced rupture thereof.

Abstract: A one-piece flexible guard for excluding dirt and other foreign matter from the internal parts of a pop-up sprinkler. More particularly, a flexible circularly shaped piece of material which can be attached to the edge of the fixed housing assembly of a pop-up sprinkler. Said material having a circular hole in its center in which the pop-up sprinkler protrudes, said movable part being securely attached to said material along the edge of said circular hole. The guard being attached to the sprinkler in such a way so as to exclude foreign matter from the internal parts of the sprinkler while permitting the movable nozzle portion free vertical or horizontal movement. In an up position the outer perimeter of the guard forms a dam. The sprinkler also may provide fluid to wash the dirt from outside of the dam portion of the guard when the nozzle is in the extended or up position.

Abstract: There is disclosed a spray nozzle head for spraying of pressured liquid such as airless spraying and the like which is constructed with a minimal number of parts and which provides for facile reversal of the spray orifice in the head, thereby permitting the orifice to be cleaned by the liquid pressure. The spray nozzle comprises a body with a longitudinal through passageway and a cylindrical through bore orthogonal to and intersecting the through passageway. A cylindrical turret member which carries a removable orifice spray tip is seated in the through bore and is restrained therein by a detent which permits rotation of the turret member through at least 180.degree. for reversing the direction of the orifice spray tip. The turret member is sealed by a single seal washer that is biased against the turret member by an adaptor threaded into an internally threaded counterbore in the longitudinal through passageway of the body.

Abstract: A sprinkler head has a hollow body with a suction cup on its underside for mounting on the roof of an automobile. The sprinkler head is supplied with water through a hose connection and perforations in the top of the hollow body discharge a spray of water over the automobile, leaving the operator's hands free to mop the surfaces to be cleaned. A shield of soft material underlies the hose connection to prevent the hose connection from marring the surface of the roof.

Abstract: The blow gun comprises a hollow body having an inlet for compressed air at one end of the body. A tube extending from the other end of the body has a closed end mounted to swivel in the body, and has a radial port leading from the interior to the exterior of the tube adjacent to the closed end of the tube. A cap carried by the closed end of the tube is radially spaced from the periphery of the tube and shrouds the port. A seal is located in the body, surrounding the tube, on which the cap normally seats to prevent air from entering the port, but from which one side of the cap can be separated by swinging the tube out of axial alignment with the body, to admit air to the port. A nozzle fixed on the outer end of the tube has a Venturi passage extending outward from the tube, the inner end of such passage being radially spaced from the tube and having ports arranged laterally of the tube which act as inlets when air is discharged through the nozzle and as outlets when the nozzle is obstructed.

Abstract: A soil-mounted hydrant selectively positionable above the ground level to distribute an irrigation fluid to its environment is described. A distributing aperture in the side wall on the upper portion of a cylindrical hydrant housing is closable to a desired degree by a hollow cylindrical cap member that is threadable into the interior of the hydrant housing. The threaded cap is captured within the interior of the housing by means of a limit pin disposed above the distributing aperture, such pin contacting the aperture-blocking portion of the cap when such cap is threaded outwardly to an upper limit, in which position the aperture is fully exposed. A longitudinal bore extends completely through the cap for shunting a portion of the irrigation fluid in an upwardly directed path while the hydrant is below ground level, such bore terminating in a nozzle for saturating the surrounding soil with a fine jet-like spray to facilitate the upward movement of the hydrant out of the ground.

Abstract: A vehicular herbicide spraying apparatus having a mobile support frame, a reservoir for herbicide, a spray means for dispensing the herbicide, a means for measuring the flow rate of the herbicide being sprayed, shields enclosing the spray means to protect plants from herbicide overspray in their vicinity, and cleaning means for intermittently washing off any herbicide which may be retained on the surface of the plant shield.