Abstract: The invention concerns a fluid pump with a cylinder, piston and check valve for compressing the fluid having a high-pressure seal for precluding leakage of pressurized fluid. Any leakage from the high-pressure seal feeds back into an inlet area of the pump and recycles through the pump instead of leaking externally.

Abstract: An apparatus for dispensing plural component materials under pressure having at least a first and a second component and a desired ratio between the components is disclosed. The apparatus includes at least a first and a second pump, each of the pumps has an outlet and an inlet connected to one of the components. Each of the pumps has a driver connected by a shaft to drive the pumps and a sensor coupled to the shaft. Each of the sensors output a signal relational to a volume being pumped by the driver-pump set to which the sensor is connected. There is at least a first and a second fluid regulator each with an input, an output and a control; each input is attached to the outlet of one of the pumps. The outputs of the fluid regulators are connected to a mixing manifold for mixing the component materials. A controller electrically coupled to the sensors determines the output of each pump and adjusts the output ratio of the components to approximate the desired ratio by controlling each of the fluid regulators.

Abstract: An injection valve attached to a mold insert, the injection valve including a valve nose body and the mold insert having a bore for receiving an end of the valve nose body, inserting the valve nose body into the bore of the mold insert and holding in position by means of a releasable locking mechanism.

Abstract: An improved liquid impingement nozzle having two openings along an axis, spaced apart and angled towards each other. A non-atomized liquid stream of the same liquid is directed through each opening by a pressurized source. The two streams meet at an apex distal from the front of the nozzle to create a flat triangular pattern of liquid. The inner shape of the nozzle is substantially conical reducing turbulence and dead zones within the nozzle, thereby reducing build-up and clogging.

Abstract: A pair of high speed blowers are pivotally mounted in a vertical plane on a movable frame structure. Each blower has blades turning in an opposite direction from the other blower. The blowers are locked in place at an angle of 10 to 60 degrees with respect to each other so that air emanating from the blowers impinge on each other downstream from the blowers. The air impingement creates a triangular type expanding air stream pattern downstream from the impingement area.

Abstract: The nozzle (10) has at least one pair of openings (18, 20) located on its front face (28) along a common axis (32). Each opening (18, 20) is spaced apart (26) from and angled towards its pair mate. A non-atomized solid liquid stream (14, 16) is directed through each circular opening (18, 20) by a pressurized source. The two streams (14, 16) from each pair of openings (18, 20) meet at a spaced apart point in front of the nozzle face (28) to create a flat triangular pattern of liquid (24).

Abstract: A row of openings on the same axis are located on a rotary fitting mounted on a front face of a cylindrical nozzle body having a longitudinal bore. A nozzle retainer is mounted within the longitudinal bore and has a tapered seal within an inner channel. A passageway within the tapered seal aligns with a channel in the rotary fitting leading to the row of openings. A filled resin is pumped through the nozzle openings via a standard resin gun. When the nozzle openings plug with resin, the rotary fitting is turned 180 degrees and the plug material is evacuated by a pressurized fluid.

Abstract: Spray equipment is used to apply fiberglass reinforced plastics onto mold surfaces. Such spray equipment includes a nozzle designed to allow flow of resin to a point of application as well as an outlet dispenser of small cut pieces of glass which aims the glass into the resin flow so that the resin and glass mix beyond the nozzle exit. A second nozzle is positioned below the resin nozzle and is angled slightly upwardly at the resin stream in the form of an air knife. The air knife causes the resin stream to uniformly spread permitting the chopped glass to fall within the resin stream and uniformly mixed therewithin for application to a mold surface.

Abstract: A flow alarm includes a magnetic switch that is maintained open so long as catalyst flow is maintained and an air flow switch that is closed responsive to flow of air through an associated conduit. The associated conduit supplies air via a solenoid valve to a pneumatic whistle. When flow of catalyst falls below a pre-set threshhold, the magnetic switch closes completing the circuit with the solenoid valve causing the solenoid valve to open and allowing air flow to the pneumatic whistle to signal the reduction of catalyst flow.

Abstract: A spray nozzle includes a central resin nozzle and peripheral catalyst nozzles as well as air nozzles designed to emit streams of air to shape the flow of the resin material from the resin nozzle. The resin nozzle is mounted on a rotary fitting allowing the direction of the resin nozzle to be reversed 180.degree. to permit cleaning of the resin nozzle. The air nozzles consist of passageways through the rotary fitting that are aligned with respective sources of air pressure when the rotary fitting is positioned to permit spraying of resin through the resin nozzle.

Abstract: An apparatus has a cylindrical container with an intermediate floor containing a multiplicity of air holes through which air is pumped upward to keep glitter within the container above the intermediate floor in movement. A vertical housing within the container contains a venturi jet to suck glitter out of the container, through the vertical housing, and through a hose to a spray gun. Static reducing tinsel is emersed in the glitter in the container and connected to a ground outside the container. The spray gun can separately or simultaneously spray resin and glitter.

Abstract: A compact spray gun using a single air supply port to actuate two piston valves and act as an air refinement system. An externally adjustable cartridge type packaging assembly needle piston valve seals the resin. A spool valve portion of a catalyst piston valve having O-ring seals is separable external from the piston portion. Leak detection ports are provided so the operator can easily determine when to adjustment or replacement of the packing or O-ring seals. The catalyst piston valve controls the mixing of the catalyst and air from a second air supply port. In a preferred embodiment, the resin piston valve controls a valve which provide air to the chopper system simultaneously with spraying of the resin.

Abstract: A material dispensing monitor including an encoder and sensor adjustably mounted to a securement and a pump as a function of specific gravity to produce a series of pulses per cycle of the pump as a function of specific gravity and capacity of the pump so that the pulses provide a direct measure of weight. An all pneumatic system monitors and displays the weight of material dispensed and can provide annunciation when a predetermined weight of material has been dispensed.

Abstract: A spray gun having a trigger lever operated supply valve which includes a reciprocating hollow valve sleeve and a free floating spherical valve element to close the hollow in the reciprocating valve sleeve when the valve sleeve is in its closed position. The free floating spherical valve element and the valve sleeve are located in a chamber which has at least two exit ports spaced from one another at a distance in excess of the diameter of the spherical valve element. End areas of the valve sleeve are equal and subject to the pressure of the material flowing through the valve in its open position to provide a balanced force on the valve sleeve when the valve is open and to help a bias spring to hold the valve in the closed position.

Abstract: A compact spray gun using a single air supply port to actuate two piston valves and act as an air refinement system. An externally adjustable cartridge type packaging assembly needle piston valve seals the resin. A spool valve portion of a catalyst piston valve having O-ring seals is separable external from the piston portion. Leak detection ports are provided so the operator can easily determine when to adjust or replace the packing or O-ring seals. The catalyst piston valve controls the mixing of the catalyst and air from a second air supply port. In a preferred embodiment, the resin piston valve controls a valve which provide air to the chopper system simultaneously with spraying of the resin.

Abstract: A compact spray gun using a single air supply port to actuate two piston valves and act as an air refinement system. An externally adjustable cartridge type packaging assembly needle piston valve seals the resin. A spool valve portion of a catalyst piston valve having O-ring seals is separable external from the piston portion. Leak detection ports are provided so the operator can easily determine when to adjust or replace the packing or O-ring seals. The catalyst piston valve controls the mixing of the catalyst and air from a second air supply port. In a preferred embodiment, the resin piston valve controls a valve which provide air to the chopper system simultaneously with spraying of the resin.

Abstract: An internal mixing chamber wherein a small amount of secondary fluid is introduced through a circumferential orifice having circumferential rotation and a large amount of primary fluid is introduced as an axial annulus to flow axially through the radially introduced secondary fluid to be mixed therein. The secondary fluid is introduced at lower pressure than the primary fluid and the system is self-balancing.

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.