Abstract:
A paint spray apparatus includes a plurality of paint sprayers installed in a paint spray booth. Each paint sprayer includes a paint spray head pivotably mounted on the end of a movable paint spray arm. The paint spray arm and paint spray head are movable on multiple axes by servo motors, which are controlled by servo drives mounted on or beside the paint sprayer. The spray of the paint spray head is controlled by a plurality of proportional solenoid valves mounted on the paint sprayer. The movement and spray of the paint sprayers are controlled by a computer having an interface to an optical fiber. The optical fiber connects the computer to the servo drives in series in a token ring network.
Abstract:
A universal remote control mechanism for controlling a power spraying device comprises an electronic control contained within the nozzle housing of the sprayer. Membrane switches in the controller are actuated to cause radio wave signals to be generated and transmitted by an internal antenna. The radio signals are detected by a receiver which converts the radio signals into control signals for a main pumping unit. The radio waves may also control the introduction of various chemicals into the liquid solution by the main pumping unit. The nozzle also contains a deadman's switch for turning off the flow of liquid in case the unit is accidentally dropped. A delay feature lets the operator change hands without deactuating the system. The nozzle gun can be used for wired cable systems as well as for radio controlled systems.
Abstract:
A spray system is disclosed which includes a spray gun for the hand-operated spraying of fluid material with pressurized air. A spray gun body includes a barrel chamber having an air tube which directs air outwardly through a discharge port with entrained material in a spray. A bistable control valve operates responsive to movement of a trigger for controlling the flow of both air pressure and material into the barrel chamber. The control valve is bistable in its operation to either close the air flow off when the trigger is in its off position or to open the air flow when the trigger is in any of its operating positions. Air tube adjustment means is provided for manually controlling the spray pattern during operation. An electrical control circuit is provided to control a material flow pump responsive to movement of the trigger.
Abstract:
There is provided a high volume low pressure spray painting system, control therefor, and method of operation therefor. The high volume low pressure spray painting system includes an electrically powered blower motor with a cooling fan, an high volume low pressure blower fan driven by the blower motor, an air conduit connecting the outlet of the blower fan to a spray gun adapted to atomize liquid paint with the high volume low pressure air delivered by the blower fan, and a valve in the spray gun actuated by a trigger for controlling the high volume low pressure air delivered by the blower fan. The control for the spray painting system includes a second valve arranged downstream from the blower fan outlet biased to a normally closed position which checks the flow of high volume low pressure air delivered by the blower fan when the valve in the spray gun is closed and simultaneously with the closing of the second valve the speed of the blower motor is reduced to idle. When the valve in the spray gun is open the pressure downstream from the second valve is reduced allowing the second valve to open and causing the speed of the blower motor to increase to a normal operating speed.
Abstract:
In a method of moistening such articles as tools (drills, band saws, circular saws, thread cuttters and similar tools as well as stamping, drawing, and sectioning tools) or workpieces (metal or plastic articles being machined, pipes that are being sawn through, or sheet metal being rolled into structural piping for example) with a liquid (such as a lubricant or coolant for tools and workpieces or an adhesive for workpieces), wherein the liquid is removed from a reserve of liquid and supplied by way of a pipeline to a dispenser that is aimed at the area of the article to be moistened, the pipeline having flow controls and a blender for blending a gaseous medium into the liquid, the improvement wherein the liquid is mixed with the gaseous medium in a gyration chamber into a fluid that is supplied through tubing to a dispenser and sprayed onto the area to be moistened through the dispenser.
Abstract:
A liquid chemical proportion and application rate controller for agricultural injection type sprayers is connected to a microprocessor and to one or more pumps. Depending upon the chemical being used, a control key is inserted into a monitor which controls the output of the microprocessor to the pump or pumps and automatically controls the rate of application, the dilution proportions, indicates and adapts the output for Metric, Imperial instructions or in combination of both (i.e. liters per acre). Such a key may be provided with the container of chemical and discarded when the spraying is completed.
Abstract:
An air driven hydraulic system for spraying liquids comprising a double acting cylinder having a central piston with an oil supply on one side of said piston and air on the other side of said piston and means of alternately controlling the supply of air and oil to the cylinder.
Abstract:
A waterjet cutting apparatus for limiting pressure spikes caused by hydraulic pressure surges. A hydraulic pump pressurizes hydraulic fluid used to operate the apparatus. An intensifier is driven by the pump. An on-off nozzle valve actuator is coupled to the pump and to the intensifier. First and second linkages are provided. The second linkage has a lost motion slot formed therein. An output control device is provided in the pump for controlling output from the pump and thus controlling the level of hydraulic fluid pressure admitted to the intensifier. A first control arm is coupled to the output control device and movable between a "MAX" and "MIN" position. An on-off nozzle actuator opens and closes the on-off nozzle valve remotely by way of the first linkage. A second control arm is coupled to the on-off nozzle valve actuator device and is movable between an "ON" and an "OFF" position. The first and second control arms are interconnected by the second linkage in such a way that the lost motion slot permits the first control arm to move from the "MAX" to the "MIN" position when the second control arm remains in the "ON" position thereby suppressing pressure spikes.
Abstract:
An apparatus for securing reflectors to a road bed. The apparatus deposits a small amount of hot liquid bitumen to the surface of the road and before it cools a reflector is set therein. The apparatus includes a vat for heating the bitumen to about 425.degree. F. An articular heated, insulated dispensing conduit connects the output of the vat to a vertical dispensing valve which when actuated deposits a selected amount of liquid bitumen on the pavement. A pump assembly is connected to the output of the vat and is directed into the dispensing conduit and a dispensing valve is provided at the end of the conduit. The whole system is supported on a trailer which is pulled by a truck. The operator sits in a suspended chair and guides the dispensing valve as necessary to obtain the correct location for the reflectors. A foot switch is provided to actuate the pump assembly and valve in a coordinated fashion.
Abstract:
This invention relates to a two-fluid nozzle which is adjustable to provide a substantially constant mixing energy. Adjustment of the two-fluid nozzle is made in accordance with the pressure and mass flow values of the liquid and gas fed to the nozzle. A microprocessor calculates the mixing energy from these values and provides an output to the nozzle to adjust it should its mixing energy be in variance with a pre-selected mixing energy.