Abstract: Disclosed is a static seal suitable for sealing a pull rod or the like to an opening through which the rod passes into a hydraulic conduit. This static seal can be used in a wide variety of apparatus including for example spray coating guns, both electrostatic and non-electrostatic, valve assemblies and the like. Novel static sealing arrangements at each end of a non-machined extruded bellows provide packingless bellows sealing between the rod and the opening. Such a sealing arrangement is compatible with the highly desirable materials of the fluorinated hydrocarbon group, commonly known by the trade name Teflon.

Abstract: A valve for hot melt adhesives is provided with a spring pressed piston urged open by adhesive pressure. A nozzle on the valve has an outlet channel of predetermined volume. Upon termination of fluid pressure the piston retracts through a volume less than the predetermined nozzle outlet channel volume to suck back a limited amount of adhesive to prevent dripping of adhesives.

Abstract: A spray gun or air brush is disclosed and comprises a spray jet having a delivery orifice fed from a liquid reservoir, an air jet located in the vicinity of the spray jet, and means for conducting pressure air from a source to the air jet to cause a stream of air past the spray jet whereby a negative pressure induced in the latter draws liquid into the air stream. An air valve is arranged in the means for conducting pressure air so as to control the passage of air to the air jet, and manually adjustable cam means, adapted to co-operate with a control valve incorporated in the spray jet, are provided to control the size of the delivery orifice and to control variation of the size of the orifice in a predetermined manner.

Abstract: There is disclosed herein a spray gun particularly adapted for heavy duty use in applying a variety of fluids to the working surfaces of dies, molds, or other like forming apparatus. The spray gun comprises a main body housing adapted for the connection of compressed air and other fluid supply lines and having a single axially movable double action valve disposed therein which is adapted to selectively control both the flow of compressed air and other desired fluids. The double action valve is actuated by a lever arm connected to the body portion and engaging a portion of the valve member. A delivery tube is connected to the discharge end thereof for transmitting and directing the fluid or fluids to the surface to be sprayed.

Abstract: An electrostatic spray coating gun for applying coating materials which have high to moderately high electrical voltage electrical system, improved hydraulic seals, and is adaptable to apply porcelain enamel coatings in slurry form. The gun has a flexible and resilient electrode in the form of an elongated coil spring. This form of electrode substantially eliminates the likelihood of scratching or puncturing the skin of an operator or repairman, and allows the electrode to return to its proper orientation after being bumped, while exhibiting proper paint charging characteristics for use in electrostatic spray coating. The electrode is positioned forward of a flat-fan spray nozzle and is displaced from the axis of the spray by means of an extension assembly which can be angularly displaced about the axis of the spray. The gun further incorporates improved packingless bellows sealing between an opening into the coating conduit in the barrel of the gun and a control rod for a needle valve in the conduit.

Abstract: A spray nozzle having an orifice plate fixedly retained in the front opening of a nozzle body by a readily deformable lip and having an improved valve stem and guide construction whereby assembly and construction of the nozzle is greatly expedited and at reduced costs.

Abstract: An aerosal valve stem actuator of the anti-clogging type which has a valve opened by a flexible diaphragm having a skirt seal which seals more tightly by receiving the pressure of a dispensed pressurized product which not only flexes the diaphragm to the valve, but also presses the skirt seal outwardly against a cylinder in which the skirt seal is positioned.

Abstract: An on-off water valve which is adapted to be removably fixed to the end of a water faucet which comprises a valve housing, a valve seat extending across the valve housing and dividing said housing into an upper and lower portion, said valve seat provided with a centrally disposed aperture therein, a valve stem extending axially through the valve housing and provided with a valve head which is slidably received by said aperture in a water-tight manner, and a control arm disposed from the outside of the valve housing and extending through said housing and communicating with the base of the valve stem, said control arm being adapted to be moved axially with respect to the valve housing, the valve head being seated or unseated in the valve seat depending upon the direction of movement of said control arm.

Abstract: A unique bead dispensing gun for marking pavement, the gun being actuated between open and closed positions, using fluid pressure, and the beads being delivered to and through the gun, when open, also under fluid pressure, with the gun comprising a casing or body forming in part a cylinder in which a piston operates, the lower end of the piston comprising a shut off valve to selectively prevent or permit bead discharge from a bead chamber within the gun, to which beads are supplied by a relatively large external reservoir, through a discharge opening along a novel control chute to the atmosphere, the cylinder/piston arrangement being one way (to open the gun), a return spring returning the gun to the closed position, when the fluid pressure upon the piston is removed.

Abstract: An improved adjustable-spray mechanism which includes a button body to be fixedly connected to the exit stem of an aerosol or other fluid container, the button body being characterized by a bore having an end wall. An orifice extends through the end wall from the bore and constitutes a spray outlet to the environment. An adjustable valve is disposed in the bore so as to selectively advance toward or retract from the end wall. Upon introduction of fluid to the bore, a variable fluid spray pattern can be obtained upon adjustment of the valve toward or away from the orifice in the wall.