Abstract: Liquid crystal polymer films are laminated to a textile substrate in a specific fashion to produce a fabric especially useful for sail panels.

Abstract: A paint spray booth apparatus and method, particularly for automated paint applications, is illustrated and disclosed. The booth has a spray painting chamber and a plenum thereabove. Unlike prior art booths, the plenum of the present invention provides air flow only where needed to control overspray, and generally the plenum is only 60%, or less, in width or cross-section than the prior art, full ceiling width plenums. In carrying out the method of the present invention air is supplied from the plenum to the spray painting chamber only where needed to control overspray so that consequently the quantity of air utilized is substantially less than in prior art booths with air flow from their full width plenums. In certain booths where painting occurs on both sides of the booth, it is advantageous to provide the plenum in the form of two or dual plenums, each offset from the center of the booth.

Abstract: A device for providing electromagnetic levitating forces and heating is described. A plurality of separate coils are provided, each powered by a separate power amplifier. Each coil may be supplied with two separate frequencies, one to levitate, and the other to heat the object. Also, the coils may be driven at separate phases to more uniformly distribute the magnetic levitating and heating forces.

Abstract: A low profile fairlead has a plurality of blocks support in a spaced relation along the arc of a circle to simulate a single bearing block of larger diameter.

Abstract: Low frequency, high intensity sound is produced using a conduit having a flow of high velocity and low pressure air. A pair of sound ports are provided in the conduit, and a rotary valve connected to a reversible servomotor and audio source is employed to direct the flow of air toward and away from the ports.

Abstract: A geotextile having a soil treatment compound includes a porous sheet having a plurality of spaced nodules of composite material secured to the sheet. The nodules are composed of a soil treating agent and a binder which is injected through the sheet and solidified, such that the sheet is enmeshed by the nodules.

Abstract: A recirculating washer for a paint spray booth is illustrated and described, and uses upward air motion and gravity to recirculate water on and along two or more recirculating baffles facing each other to form one or more curtains of water for cleaning paint laden air from the pain spray booth. The washer's baffles direct the water to form the curtains. The recirculating washer may be used in a booth by itself, or with one or more washers of another type washer, such as a slot type and/or an air nozzle-water nozzle type washer to reduce the amount of water required by the booth. The washer may use the other type washer or a trough for cource of the recirculated water. Preferably, the washer utilizes the floor water from the booth so that the water requirement for the entire booth is very low, say on the order of 40 gallons per minute per foot of booth length, or less, for a booth of a size capable of production line painint of automotive vehicles.

Abstract: A paint spray booth, which can also be utilized as a paint drying oven is disclosed and is especially suitable for use in businesses, such as automobile repair shops, to both paint and quickly bake the paint so that the number of automobiles that may be handled in a given time is increased significantly. The booth-oven comprises an enclosure which has a single air supply fan for moving air though the booth-oven. Preferably, the booth-oven has, in addition to a direct heater, a heat exchanger for more economical operation, and/or may be provided with an air recirculating system for additional savings. The booth-oven is structured so that paint laden air generated during the paint spraying operation is routed around or away from the heat exchanger.

Abstract: One or multiple piece golf balls are manufactured by a hot gate injection molding process in which a polymer is injected into a precise cavity defined by mating mold halves. Each individual set of mold halves is selfalignable by means of engageable inclined surfaces on the respective mold halves, which urge the halves into alignment around an axis through the poles, with one of the halves being movable around the axis to enable precise alignment around the parting line. The polymer is injected at a location spaced from the parting line to prevent the formation of a seam or irregular surface at the parting line equator of the ball.

Abstract: A method of and apparatus for applying coating liquid to a web of paper traveling over a web supporting surface at speeds of 3,000, 4,000 and more feet per minute to produce a coated web free of streaking and other imperfections comprises apparatus for and the sequential steps of distributing coating liquid in a turbulent state over the supported web through a limited application zone within a very short dwell time of the turbulent liquid on the web; subjecting the coating liquid on the supported web to an initial doctoring by means of a primary doctor blade biased under pressure against the coated web at the rear edge of the application zone to form on the web downstream from the zone a relatively quiescent layer of coating liquid having a wet film thickness sufficiently in excess of the final wet film thickness to accommodate a subsequent final wet film doctoring of the coating liquid on the web; and, a a location downstream and isolated from the application zone, subjecting the relatively quiescent layer o

Abstract: The apparatus of the invention comprises a conventional photocopy machine having a stationary light receiving device and a moving copyboard in combination with a light fixture attachment. The light fixture comprises an elongated lamp and a support for holding the lamp above the copier and aligned with the stationary image receiving device. The support comprises a base which is positioned under the copier, a vertical leg attached to the base, and a horizontal arm pivotally connected to the vertical leg. The lamp is secured to the horizontal arm. The pivotal connection of the horizontal arm to the vertical leg permits the lamp to be pivoted to and from a position above the copyboard. The lamp when pivoted over the copyboard is aligned with the light receiving device of the copier. Thus, when a radiograph is placed on the copyboard, light emitted from the lamp passes through the radiograph and copyboard and is received by the image receiving device of the copier.

Abstract: The flowerpot assembly comprises a flowerpot whose upper edge portion has formed thereon two diametrically opposed and radially outwardly oriented grip noses with which the flowerpot is hung or suspended in corresponding recesses formed in the upper edge portion of a flowerpot holder. The projections of the flowerpot are partly exposed to the outside, so that they can be gripped from underneath in order to remove the flowerpot from the flowerpot holder in a simple and easy way. The upper edge of the suspended flowerpot extends slightly below the upper edge of the flowerpot holder. A predetermined water accumulation chamber remains between the bottom of the flowerpot and the bottom of the flowerpot holder.

Abstract: An electrostatic spray coating system has a reservoir into which a metered quantity of electrically conductive paint is flowed from a grounded color changer and through a first flow meter. After filling the reservoir, at least a portion of the flow path between the reservoir and the color changer is cleaned of paint to electrically isolate the reservoir and paint therein from the color changer. The paint in the reservoir is then flowed through a second flow meter to an electrostatic spray gun. The second flow meter is electrically isolated from ground and is used to compare the quantity of paint delivered to the spray gun to the quantity of paint loaded into the reservoir, as well as to monitor and control the volume flow rate of paint from the reservoir to the spray gun. The arrangement makes it possible to spray substantially all of the paint flowed into the reservoir and to accurately control the flow rate of paint to the spray gun.

Abstract: Color change systems for electrostatic coating apparatus are characterized by a dielectric manifold in-line between supplies of different colors of coating materials and a material supply line to the apparatus. To initiate a coating operation, a selected color of material is provided through the manifold to fill the supply line, whereafter the manifold is flushed clean of the material. A high electrostatic charging voltage is then applied to the coating apparatus while the material in the line is supplied to the apparatus for being electrostatically charged and emitted by the apparatus to coat an article. For conductive coating materials, during the coating operation the high charging voltage conducted through the material in the hose is blocked by the nonconductive dielectric manifold and cannot reach and charge the material supplies, so there is no need for a protective enclosure around the supplies of leakage of charging current to the supplies.

Abstract: A low friction proportional unloading valve mechanism for pressurized fluid circuits incorporating a valve housing forming primary and bypass fluid circuits. A normally closed unloading valve normally prevents the flow of incoming fluid to the bypass fluid circuit and is opened by a pressure responsive valve actuator. The valve actuator forms a pressure responsive wall and may take the form of spaced diaphragms or a deformable flexible hose that induces opening force to the unloading valve in direct proportion to the pressure in the primary fluid circuit. upon opening of the unloading valve, a check valve in the primary fluid circuit prevents back flow and thus maintains valve controlling pressure on the movable wall structure of the valve actuator.

Abstract: A one piece sail is made on a mold and includes an outer impervious layer, such as film, and an inner layer of continuous and uninterrupted yarns disposed in continuous trajectories from one edge of the sail to the other and carrying the majority of the load imposed on the sail.

Abstract: A filled supercalender roll is characterized by a plurality of resin impregnated discs that are carried side-by-side on a shaft and form a homogeneous roll body. To make the supercalender roll, a web of woven or nonwoven fibrous material is immersed in and carried through a vat of thermosetting resin to saturate the web with the resin. The resin saturated web is then transported through an oven to partially cure the resin to the B stage, after which the web is cut into a plurality of the discs. The discs are placed side-by-side on the shaft and a collapsible oven is assembled around the discs. The discs are then axially compressed while being heated within the oven to fully cure the resin to the C stage, during which time the collapsible oven decreases in length in accordance with a decrease in the axial length of the axially compressed discs on the shaft as the resin cures.