Patent classifications
B05C5/0245
Fluid application device having a modular contact nozzle with a fluidic oscillator
A fluid application device includes an applicator head and a nozzle assembly fluidically coupled to the applicator head. The nozzle assembly includes a first conduit configured to receive a first fluid from the applicator head, the first conduit having a first inlet configured to receive the first fluid and a flow-distributing channel downstream from, and in fluid communication with the fluid inlet, the flow-distributing channel configured to direct the first fluid in a lateral direction. The nozzle assembly further includes an application conduit having a first fluid receiving section configured to receive the first fluid from the flow-distributing channel, and an orifice fluidically connected to the application conduit, the orifice configured to discharge the first fluid for application onto a strand of material.
Composite friction elements and pultrusion method of making same
A composite friction unit of a three dimensional composite body is formed in a system for continuous process manufacturing of composite friction units. The system uses a plurality of rolls of reinforcing fiber fabrics, a resin dispensing system that receives a panel of reinforcing fiber fabric from each one of the rolls and separately dispenses resin through a plurality of dispensing tubes, each associated with a different panel, onto a surface of each panel. A forming die is positioned to receive the plurality of panels of reinforcing fiber fabric after resin is dispensed onto the panels and is configured to form a composite panel from the plurality of panels of reinforcing fiber fabrics. A cutting mechanism cuts a desired shape part from the composite panel.
Process for in-line extrusion of coating onto roofing shingles during manufacturing and roofing shingles made by the process
A process for in-line extrusion of polymeric coatings onto roofing shingles during manufacturing includes moving a web of shingle substrate material in a downstream direction and extruding a liquefied coating of polymeric material onto at least one surface of the moving web to form a thin film. The liquefied coating may be a molten polymeric material that forms a thin film on a back surface of the shingle material to prevent sticking and eliminate the need for a traditional back dusting with material such as powdered stone. The polymeric film further may be applied to the substrate material in lieu of a saturation coating of asphalt, thus reducing cost and weight while providing a comparable moisture barrier and a lighter more flexible shingle.
Device for applying a foamed treating material under pressure to a traveling sheet of textile yarn
A device for applying a foamed treating material under pressure to a traveling sheet of relatively incompressible textile yarns. A foam applicator unit has a nozzle with a foam dispensing slot facing across one side of the traveling sheet of yarns. A drive roll faces the other side of the traveling sheet of yarns in tangential alignment with the foam dispensing slot. The roll has a resiliently compressible, soft rubber outer layer, which compresses to conform with the surface of the relatively incompressible yarns and presses the traveling sheet of yarns against the applicator surfaces leading to and away from the slot to prevent escape of foam and to prevent passage of foam between yarns to maintain uniform distribution of foam applied to the traveling sheet of yarns.
LIQUID MATERIAL APPLICATION METHOD AND DEVICE FOR IMPLEMENTING SAID METHOD
A discharge device includes a nozzle (50) having a plurality of discharge ports, a liquid chamber (26) communicating with the plurality of discharge ports via a plurality of discharge flow paths, and a plunger rod (18) that reciprocates in the liquid chamber and is narrower than the liquid chamber. The plurality of discharge ports (62) is arranged un a straight nozzle arrangement line, and arranged with such a distance therebetween that globs of a liquid material having landed on an application target join together to form an application line. A plurality of liquid globs having been discharged from the plurality of discharge ports (62) have no contact with each other before landing on the application target, and letting the globs of the liquid material having landed join together on the application target.
METHOD FOR COATING A MATERIAL WEB
A method for coating a material web (2), in particular a fibrous web, by way of a coating device. The coating device (1) has an application unit (3) for applying a coating medium to the material web. The application unit is arranged in the interior of an enclosure (4), which has first opening for the entry of the material web and a second opening for the exiting of the material web. In the interior of the enclosure there is produced a positive pressure greater than the ambient pressure outside the enclosure during the coating so that air flows from the interior of the enclosure to the outside (5b) of the enclosure through the first opening and/or the second opening.
COATING APPARATUS FOR MOVING WEB
A coating apparatus for a moving web that employs a spreader roller in the upweb position in a tensioned-web-over-slot die coater. The spreader roller can help spread webs laterally in a web processing operation, in particular to reduce or remove the presence of wrinkles or bagginess in the web. The spreader roller can be a reverse crown roll that is covered with a resilient material to assist spreading the web to remove wrinkles. The surface curvature of the spreader roller can be formed using layers of material such as a tape, to easily and readily approximate the shape of a reverse crown roll.
Automatic dispensing device for wallboard joint taping
An automatic dispensing device for wallboard joint taping is provided, including a body for holding a supply of viscous material and having a rear end and an opposite front end, a spool assembly disposed on the body and configured for supporting a spool of tape; at least one drive roller positioned at the front end and receiving an end of the spool of tape. Certain embodiments include an adhesive application assembly connected to the drive roller and mounted in operational relationship to the front end for dispensing a measured amount of adhesive upon an upper surface of the tape upon rotation of the at least one drive roll. In such embodiments, the body may be configured for holding sufficient adhesive to cover tape advanced by at least 200 rotations of the at least one drive roller.
System for producing a fully impregnated thermoplastic prepreg
According to one embodiment, a system for manufacturing a polymethyl methacrylate (PMMA) prepreg includes a mechanism for continuously moving a fabric or mat and a resin application component that applies a methyl methacrylate (MMA) resin to the fabric or mat. The system also includes a press mechanism that presses the fabric or mat during the continuous movement subsequent to the application of the MMA resin to ensure that the MMA resin fully saturates the fabric or mat. The system further includes a curing oven through which the fabric or mat is continuously moved. The curing oven is maintained at a temperature of between 40 C. and 100 C. to polymerize the MMA resin and thereby form PMMA so that upon exiting the curing oven, the fabric or mat is fully impregnated with PMMA.
COATING DEVICE AND COATING METHOD
A coating device has: a die head that is provided with a supply port into which a coating slurry is supplied, a manifold that stores the coating slurry, and a slit that dispenses the coating slurry; a supply pipe that is connected to the supply port of the die head; and a cover plate that is provided in the supply port or the supply pipe and that reduces the flow rate of the coating slurry at the center of a cross-section that is orthogonal to the direction in which the coating slurry in the supply port or the supply pipe flows into the die head.