Abstract: An apparatus for plating a wire material is provided in which a range of the plated layer where the temperature is high and flowability is large, thus, easily generating thickness deviation, and a range of the plated layer where the temperature is low and the flowability is small, thus generating thickness deviation only with difficulty are allowed to cool in an appropriate manner, respectively, whereby a plated wire material whose thickness deviation is not more than 2.0 can be produced with high productivity in a stable manner.

Abstract: The invention relates to a device for coating metal bars (1), particularly steel strips, by hot dipping. At least some sections of the metal bar (1) are vertically guided through a container receiving the molten coating metal (2), said metal bar (1) being guided by at least one roller (4) which runs on bearings. In order to increase the service life of the roller bearings, the roller, or at least the axis (5) thereof, penetrates the side walls (6) of the container (3) and is mounted outside the container (3).

Abstract: A nitrogen injection assembly for use in coloring and curing optical fibers is disclosed. The nitrogen injection assembly includes a cover section and a distribution seal. An optical fiber coated with ink passes from a coating die to a curing chamber via a passageway defined by the cover section and the distribution seal. The distribution seal injects nitrogen into the passageway to keep the coated fiber and the curing chamber substantially free of oxygen. With the distribution seal positioned closer to the curing chamber than the cover section, the apparatus minimizes the risk of leaks in the passageway and the number of required seals.

Abstract: This invention provides a method for efficiently applying a coating to each of a plurality of objects selected from the group consisting of ophthalmic lenses, molds for making ophthalmic lenses, and other medical devices, the method comprising dipping the plurality of objects into a coating bath containing a coating solution having a coating material; and creating with a means a convective current flow and thereby forcing a coating solution flowing over and under each of the plurality of ophthalmic lenses. In a preferred embodiment, the plurality of objects are held in baskets which are pre-conditioned to have a first layer of polyelectrolytes and a second layer of aqueous solution or have a mixed layer of polyelectrolytes and aqueous solution on the surfaces of the baskets.

Abstract: A system for applying a sprayed coating includes a spray mechanism operative to spray a liquefied coating material; a target system including a rotatable spray target wheel; and one or more device-holding fixtures configured to be mounted onto the spray target wheel without requiring either an unattached threaded fastener or a locking pin. Preferred embodiments of the system are configured for thermal spray application of Tamper Resistant Coatings (TRCs).

Abstract: A strip of wrapping material is advanced by a feed unit that includes a gumming device composed of a gumming roller and a transfer roller contra-rotating about horizontal and parallel axes and in tangential contact one with another along an area coinciding with a straight line generator common to both.

Abstract: The invention concerns a coating drum (60) for a single drum or, as the case may be, a multi-drum circulating coating device. The inside of the drum is subdivided into two rotation-symmetrical drum chambers (61 and 62) via a separating wall (67), which chambers are fillable with equal dispensed amounts of small parts through oppositely lying openings (73) of the drum casing (63). The openings (73) are closeable via lids or covers (68) provided pivotable on the drum (60).

Abstract: A method for producing a synthetic material part such as, for example, a dental restorative part, is provided and includes spray applying with a spray device a material having at least a polymerizable synthetic material onto a base in succeeding layers. Each layer of the spray applied material is substantially continuously polymerized by the spray device and has a viscosity which permits working of the applied material in an unpolymerized condition thereof with the spray device. The method also includes hardening the one or more of the already applied layers prior to the application of subsequent layers.

Abstract: A coating device (10) for coating a metal strip (12) in a metal melt (14) includes a shaft (16,18) that is rotatable in the metal melt (14) for guiding the metal strip (12), and a slide bearing (261, 262) for supporting the shaft (16,18). The slide bearing (261, 262) is formed by a bearing housing (32) and a bearing bushing (34) that has several pairs (361–364) of bearing surfaces and is configured so as to be circumferentially closed. The bearing bushing (34) is adapted to be set in selected rotational positions in circumferential direction in the bearing housing (32). A releasable bearing bushing fixing element (40) locks the bushing in each of the selected rotational positions with respect to the bearing housing (32). Thereby, a worn pair (361–364) of bearing surfaces can be simply replaced by a non-worn pair (361–364) of bearing surfaces by a rotation of the bearing bushing.

Abstract: A web to be coated travels over a deflecting roll and underneath a slot nozzle from which a curtain of a coating material falls. A suction box open toward the roll and web has upstream and downstream ends and extends full axial length of the roll. An upstream seal on the upstream side of the box is juxtaposed with the web, extends the full axial length of the roll, and has upstream and downstream edges extending transverse to the web-travel direction. A similar downstream seal is provided on the downstream side of the box juxtaposed with the web. The downstream-seal downstream edge is spaced upstream in the direction from where the curtain falls on the web. Air is withdrawn from the box between the seals to suctionally strip a boundary layer of air from the web between the seals.

Abstract: The invention pertains to a coating apparatus and method in which most of the relative movement between a dispensing head and the substrate to be coated is provided by the coating head. The moving head configuration reduces the system footprint and diminishes leveling problems. A powered shuttle mechanism carries a dispensing head above a substrate to be coated while riding on a bearing located underneath the chuck holding the substrate thereby providing rigidity and reducing the system footprint. Chuck support is designed to accommodate anticipated vertical sag in the dispensing head by supporting the chuck at points along its periphery thereby permitting the chuck to sag in conjunction with the dispensing head. The shuttle mechanism is equipped with means for automatically adjusting the height of the dispensing head with respect to substrate to compensate for substrate placement error, substrate dimensional variation, and mechanical drift in the mechanical machine parts.

Abstract: An applicator for application of a substance onto a material. The applicator has a housing, a valve and a nozzle. The applicator may also have a journal that is connected to the valve which together translate in a linear motion to provide shuttering functionality. The valve may be circular or non-circular in shape. The applicator may extrude hot-melt onto a continuous web or drum. In another embodiment, the applicator may have a housing and a valve. The applicator may also have a journal that is connected to the valve which translate together in a linear motion to profiled product application functionality and rotate together to provide shuttering functionality. The valve may be circular or non-circular in shape. The applicator may extrude hot-melt onto a continuous web or drum.

Abstract: During displacement relative to a substrate 1, a coating die head emits coating liquid out of a slot 12a to a surface of the substrate. The coating die head includes a lip 12b having a lip surface 12b and a side having a side surface 12c. A contact angle of the surface 12c with respect to the coating liquid is greater than a contact angle of the surface 12b with respect to the coating liquid. This configuration enhances stabilization of bead of the coating liquid during application process of the coating liquid, preventing stripes and steps from appearing in the coating layer. This coating die head makes it possible to carry out high precision coating required for fabrication of color filters for liquid crystal displays.

Abstract: The coating device (10) for coating a metal band or strip (12, 12?) in a melted metal mass (14 ) comprises a shaft (16, 18) rotatably supported in the melted metal mass (14) by a slide bearing (261, 262) is formed by a bearing housing (32) and an open bearing shell (34) held therein, with two bearing surfaces (36) . Between the two bearing surfaces (36), the bearing shell (34) comprises a deformation zone (40) with a deformation element (44) . With high radial forces of the shaft occurring, the two bearing shell halves (381, 382) are slightly spread. The flexible deformation zone ensures that the two bearing shell halves remain interconnected and resist breaking in this area.

Abstract: A tray, used for transferring a substrate and conducting a coating process, includes a recessed portion to accommodate a substrate, the depth of the recessed portion being substantially the same as the thickness of the substrate, and a one-step-lower gutter which is provided on an outer periphery of said recessed portion or inside the outer periphery of said recessed portion.

Abstract: A machine for processing a flat workpiece or wafer has a head, which spins the wafer between upper and lower weirs in a base. The head is spaced apart from the base by an air gap. A vacuum source attached to an exhaust opening in the base draw air through the air gap, to reduce or eliminate movement of process chemicals into the head. Corrosion of head components by process chemicals is reduced. The disadvantages of having a mechanical seal between the base and the head are also eliminated.

Abstract: Apparatus and method for treating by injecting a fluid treatment material into porous structures such as those formed from concrete, brick, stone, marble, and wood. The apparatus includes an applicator head having an inner chamber and an outer chamber surrounding the inner chamber both of which chambers are connected with a vacuum source. The inner chamber is also connected with a source of pressurized liquid treatment material. The method is for treating such porous structures and includes the steps of engaging the structures with the applicator head, drawing a vacuum on at least the outer chamber to secure the applicator head to the structure, and supplying the pressurized liquid treatment material to the inner chamber to impregnate the structure to be treated.

Abstract: An apparatus for the application of adhesive material, for use in the laying of flooring and roofing surfaces, comprising a frame, to which are attached a plurality of wheels, an angularly extending handle arrangement and a trowel blade whose height above a sub-floor, on which the adhesive material is to be spread, may be adjusted by some means. The apparatus is designed to be used while in a standing position and drawn across the sub-floor.

Abstract: Methods and apparatus for applying a uniform application of an appropriate quantity of pipe dope to the internal threads of a pipe. In general, the preferred apparatus includes a supply of pipe dope and a centrifugal applicator for evenly applying the pipe dope to internal threads. The system also includes a dosing system to regulate the distribution of pipe dope by dispensing a consistent volume of pipe dope at each application. Potential advantages of the preferred embodiments include the repeatability and consistency of amount of pipe dope on pipe threads (e.g. thickness).

Abstract: Thinning agent supplying systems for use with spin-coating machines are disclosed. An example supplying system enables the stable supply of thinning agent for cleaning a wafer. The example system includes an input terminal; first and second tanks for receiving the thinning agent from the input terminal; first and second valves for controlling discharge of the thinning agent from the first and second tanks; a pressure-exerting unit for applying pressurized gas to discharge the thinning agent from the first and/or second tanks; and a de-gas unit for removing bubbles from the thinning agent discharged from the first and/or second tanks.