Abstract: Systems and methods for controlling, organizing, and viewing a plurality of electrostatic spray gun operating parameters from a centralized control panel are provided. In this regard, a control panel is provided having, for example, a gun control area for selecting one electrostatic spray gun of a multiple gun system, and an electrostatic control area for displaying and controlling the operational parameters of the selected electrostatic spray gun. The electrostatic control area functions essentially as a master control panel which can be shared by all the guns in the system. Each of the guns has an assigned gun control subpanel in the gun control area. Each subpanel includes a selector switch which can be used to monitor and control the gun associated with that subpanel on the master control panel. Each of the subpanels also has a limited display such as a bar graph which can be used to show the electrostatic performance of the guns.

Abstract: A method and apparatus for the transport of sand or silt underlying or adjoining a body of water using a submerged fluid induction device is disclosed. The device includes an open bottom and comprises an enclosure which is submerged below the top surface of the sand. One or more apertured pipes, supplied with a pressurized fluidizing medium such as seawater, are positioned below the enclosure. The apertured pipe(s) fluidize the sand underlying the enclosure to induce it up into the enclosure and out an opening at one end of the enclosure. A sump enclosure receives the fluidized sand discharged from the enclosure, and a jet pump within the sump enclosure, having its own associated fluidizing pipe, pumps the fluidized sand through a transport pipe to a remote discharge point. The device as described prevents the build up of sand in the region overlying the enclosure.

Abstract: A solder/desolder tool has a heater block supporting a handle at its upper end and a heating plate at its lower end. The heating plate is thermally engaged by heating elements housed in the heater block. An array of pin relief apertures are formed in the heating plate. Retractable clamps are pivoted to the heater block for clamping a leadless chip against the heating plate. The leadless chip has an array of input/output sockets corresponding to the array of pin relief apertures. A method is disclosed for soldering the chip sockets to a corresponding array of pins supported by a PC board. According to the method, solder balls are loaded in the chip sockets, and the chip is then secured in the tool to reflow the solder balls to form solder plugs. The solder plugs are then set upon the upper ends of the pins and melted by the heating plate so that solder joints are formed between the pins and sockets. The chip is released from the tool to allow the solder joints to cool.

Abstract: A skate wheel cover has a cover member and a tubular sleeve depending from the back of the cover member. A roller skate wheel is rotatably mounted on an axle by a bearing assembly. The wheel is secured to the axle by a nut threadably received on the end of the axle. The nut and threaded end of the axle extend into the exposed wheel well of the skate wheel. The tubular sleeve of the skate wheel cover is inserted onto the nut in an interferance fit relationship to frictionally secure the skate wheel cover to the axle, with the cover member being installed over the wheel well area to improve the appearance of the skate, and to partially seal the bearing assembly from dirt and debris.

Abstract: A board to board interconnect assembly is installed between a first multilayer circuit board and a second multilayer circuit board. The assembly is comprised of a first housing member carrying electrical contacts and a second housing member carrying electrical contacts which mateably engage with the contacts of the first housing member. The first and second circuit boards have corresponding arrays of plated through apertures selectively connected to the circuit layers of the respective boards. Socket carrying contacts are frictionally engaged in certain of the plated through conductive apertures of the first and second circuit boards to secure the first housing member to the first circuit board and the second housing member to the second circuit board. Flex contacts are installed in conductive plated through apertures of the boards opposite each of the socket contacts and are frictionally engaged with the socket contacts.

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: A carriage assembly has a carriage frame which supports a transducer for reading and/or writing on a recording medium. The carriage frame is slideably supported upon support members for rectilinear movement with respect to the recording medium. The carriage assembly includes an auxiliary mass slideably supported upon a support rod of a support framework secured to the carriage frame. The auxiliary mass is slideably mounted on the support rod between elastomeric spring dampers disposed at opposite ends of the mass. The carriage assemby is driven by a flexible band which is secured at its ends to the carriage frame and is in wrapped engagement with the drive shaft of a stepper motor. The drive force of the motor is applied to the carriage assembly along a drive axis. The effect of the auxiliary mass and mass support framework is to align the drive axis with the center of mass of the carriage assembly in order to damp carriage vibrations and improve transducer/track alignment.

Abstract: A fluid heater for heating high solids fluids having a solids content approximately 50% or higher, which fluids are applied to a substrate by a coating process, includes a cylindrical body of thermally conductive material having a helical channel formed on the outer periphery thereof and including a section member dividing the channel into a pair of side-by-side passages, each having a cross-sectional area of about 0.119 square inches and a length of about 80 inches. A common input plenum identical in size to the cross-sectional area of the channel communicates with one end of each of the passages and the other end of the passages are connected to a common output plenum. An electric heating element is located in said body along the central axis thereof and is sized to produce a watt density on the surface of said passages in the range of 7.5 to 8.0 watts per square inch whereby the high solids fluids are heated for ease in application with a minimum loss of fluid pressure upon passing through the heater.

Abstract: A support for a flexible heated dispensing hose comprising a hollow cylinder having opposite ends. A bracket attaches the cylinder to the dispenser. A helical spring is contained within the cylinder and extends beyond the opposite ends thereof. The hose is supported by the spring and cylinder so that the hose is free to move from side to side, the hose is prevented from kinking, abrasion of the hose against the cylindrical member is reduced, and optimum ventilation of the hose is provided.

Abstract: A computer cooling system has gaseous refrigerant compressed in a compressor and delivered to a first stage condenser. The first stage condenser includes a heat exchanger through which return coolant from the building heating system circulates to partially condense the gaseous refrigerant. The partially condensed refrigerant is directed to a second stage condenser wherein a portion of the refrigerant is diverted and flashed through an expansion valve into the second stage condenser to fully condense the nondiverted portion of the refrigerant before delivering it to the cooling coils of the computer. A pressure regulator valve controls the pressure and temperature of the diverted refrigerant in the second stage condenser to ensure that the nondiverted refrigerant is fully condensed. The used diverted refrigerant is discharged from the second stage condenser through the pressure regulator valve into an accumulator which also collects return coolant from the cooling coils of the computer.