Abstract:
A system for manufacturing a trim panel includes a plurality of rollers for routing a foam core of the trim panel along a path. A first doctor blade for applying an adhesive resin is disposed adjacent to the first side of the foam core. A second doctor blade for applying an adhesive resin to the second side of the foam core is disposed adjacent the second side of the foam core. The system further includes a mixing head having an output port. A mixing tube is attached to the output port. The mixing head defines first, second, and third distinct fluid paths for the first, second and third components, respectively. The first, second, and third fluid ports extend to the output port. In use, the system continuously monitors the actual application rate of the adhesive resin and compares this actual application rate to a desired application rate and adjusts the pump output accordingly.
Abstract:
A cleaning device and method is provided for a glue-spreading element, which spreads glue in a working position onto a material web, in particular a paper web, and which can be moved to a cleaning position inside the cleaning device. At least one scraper element is provided for cleaning the glue-spreading element.
Abstract:
A coating head assembly incorporates a replaceable breakaway link into the coating head assembly. In the event of a collision, this link will break to reduce the likelihood of breakage of any other part of the coating head assembly. Repair then only requires that the link be replaced, rather than the coating head assembly be rebuilt. This invention reduces the coating head repair time from a fifteen-hour job of rebuilding the coating head assembly to a three-hour job of tooling a new link.
Abstract:
A first pressure generating chamber, which is sealed by a first elastic plate mounted with a first piezoelectric element at one surface, and a second pressure generating chamber, which is sealed by a second elastic plate mounted with a second piezoelectric element at one surface are formed in a casing. The second pressure generating chamber is formed with an opening which is a discharge port. A mixture is discharged from the discharge port. A nozzle formed with an opening jets gas toward a substrate surface, and is provided in the vicinity of the discharge port of the ink head.
Abstract:
A method and apparatus for applying a polymer coating on an elongated substrate, preferably an elongate intracorporeal device in the form of a guidewire. An extrudable polymer cartridge is moved by a cartridge advancement mechanism into a guide chamber which is heated at an end with a die or orifice through which a desired portion of a guidewire may pass and be coated. Parameters such as guide chamber temperature, pull speed and force exerted by the cartridge advancement mechanism may be controlled with a computer program in order to achieve repeatable results. The guide chamber, extrudable polymer cartridge, die, and push tube may all be made from polymer components which can be reused or disposed of after a single use. The extrudable polymer cartridge may have a variety of configurations including multiple layers of different materials, eccentric shapes, multiple lumens for multiple elements to be drawn through and coated and asymmetric disposition of different materials with respect to the longitudinal axis as viewed in a transverse cross section which can give bending properties having a preferred direction in the coated guidewire or device.
Abstract:
A method of applying blend drop granules to an asphalt coated sheet includes moving an asphalt coated sheet in a machine direction, and depositing blend drops of granules on a blend drop conveyor that is positioned above the asphalt coated sheet. The blend drop conveyor has an upper flight moving in a direction opposite the machine direction and a lower flight moving in the machine direction. The blend drops are moved from the upper flight to the lower flight of the blend drop conveyor while retaining the blend drops in contact with the blend drop conveyor by magnetic force. Finally. The blend drops are released from the blend drop conveyor for contact with the asphalt coated sheet.
Abstract:
An apparatus and methods for use in spin coating a coating material onto a wafer. The apparatus includes a rotatable chuck capable of supporting the wafer and a bowl having a bottom and a side defining an interior region, the bottom containing an opening through which said rotatable chuck is movable and separable from the bowl. In a preferred embodiment the bottom has a raised cylindrical portion containing the opening and, the rotatable chuck is positioned within the opening so that the wafer is in close proximity to the raised portion of the bowl so as to prevent solvent vapors form escaping the bowl through the opening.
Abstract:
Apparatus for coating rotatable objects to be coated include a mechanism for forwarding a plurality of rotatable objects to be coated. The objects to be coated are forwarded rotatingly to receive paint flowing in a curtain form. Paint flowed down is accumulated for re-use. A gravitational shift of paint applied on the objects which is flowable after coating is used to rotate the objects and change an angle of the objects with respect to a horizontal plane so as to control movement of the flowable paint.
Abstract:
A method and apparatus is provided for more efficiently application of photoresist to a wafer surface. One aspect of the method comprises applying solvent to the wafer and spinning it to coat the entire wafer surface prior to the application of photoresist. This reduces surface tension on the wafer and reduces the amount of resist required to achieve a high quality film. The apparatus comprises adding a third solenoid and nozzle to the coating unit to accommodate the application of solvent to the center of the wafer surface. The method also describes incorporating a new solvent comprising Di-Acetone Alcohol, which is a low-pressure solvent, providing extended process latitudes and reduced material expenditures.
Abstract:
A device and method for applying adhesive to materials, such as elastic strands, used in the production of nonwoven products. Generally, a nozzle is provided and includes a liquid discharge orifice configured to discharge a bead of liquid adhesive. First and second pattern air discharge orifices are associated with the first liquid discharge orifice to vacillate or oscillate the adhesive bead. First and second cleaning and stabilizing air discharge orifices are also associated with the first liquid discharge orifice. These latter air discharge orifices keep airborne contaminants away from the associated liquid discharge orifice and also stabilize the oscillation of the adhesive bead in a single plane. A method in accordance with the invention includes using the nozzle to dispense a vacillating bead of adhesive onto a strand of material.