Abstract:
Exemplary pressurization and coating systems, methods, and apparatuses are described herein. In certain embodiments, pressurization systems, methods, and apparatuses are used in conjunction with coating systems, methods, and apparatuses to control pressure about a substrate after a coating material is applied to a surface of the substrate. An exemplary system includes a die tool configured to apply a coating material to a substrate passing through the die tool and a pressurization apparatus attached to the die tool and forming a pressurization chamber. The pressurization apparatus is configured to receive the substrate from the die tool and control pressure about the substrate in the pressurization chamber. In certain embodiments, the die tool forms a coating chamber and is configured to apply the coating material on at least one surface of the substrate in the coating chamber. In other embodiments, the pressurization chamber further includes one or more sprayers which are configured to apply a coolant to one or more outer surfaces of the coated substrate.
Abstract:
Technologies are generally provided for enhancing optical coupling between nanostructures, such as a nanowire, and an optical element, such as an optical fiber, for example in order to enable effective optical communication. A nanostructure may be automatically aligned with an optical fiber by suspending the nanowire within a fluid and causing the nanowire to align itself with a tip of the optical fiber also suspended within the fluid. Light may be directed through the optical fiber to induce an optical gradient in the fluid near the optical fiber tip. The optical gradient may attract the nanowire to the tip of the optical fiber, and may cause to align with the optical fiber. Post-alignment, the nanowire may be permanently coupled with the optical fiber to form a nanowire-optical fiber assembly to couple light between the optical fiber and a nanophotonic circuit integrated with the nanowire.
Abstract:
Substrates such as fabrics are treated in an apparatus that includes a chemical transfer apparatus and a transport means which conducts the substrate past the chemical transfer apparatus. The chemical transfer apparatus applies a solid chemical treatment mixture to the substrate continuously as the substrate is transported past the chemical transfer apparatus. The chemical treatment mixture includes a monomer that is cured by free radical polymerization. The applied chemical treatment mixture is then cured on the substrate by free radical polymerization. This invention provides a dry alternative to conventional wet coating methods, and avoids many of the problems associated with wet coating methods.
Abstract:
A manufacturing method uses a solid coating die for applying an insulation varnish around a flat wire conductor. The die includes a die body and a die hole formed through the die body, into which the conductor is inserted. The die hole includes an entry portion having a cross section monotonically decreasing along a conductor insertion direction, and a coating portion including at least a sub-portion having a constant cross section. The cross section of the coating portion is a rectangle having four straight sides and four rounded corners. Each inner surface of each straight side has an inwardly projecting protrusion, a top contour of each protrusion being a circular arc, an elongated circular arc, an elliptical arc or a combination of these arcs, the maximum curvature of the top contour of each protrusion being larger than the maximum curvature of inner surface of the rounded corners.
Abstract:
An intraocular shunt can be manufactured using a system that includes a liquid bath and a wire, which is moved through the bath. When moved through the bath, the wire is coated with a material, such as gelatin. For example, the liquid bath can have a top layer, including water, and a bottom layer, including gelatin. The coated wire passes through an aperture formed in a plate component of the system. The gelatin can be dried on the wire in a humidity-controlled space, thereby forming the shunt.
Abstract:
A coating apparatus and method are disclosed that applies a coating to a product in a uniform and controlled manner. The coating apparatus comprises a feeding stage, an optional pre-treatment stage, at least one coating stage and a finishing stage. The coating stage(s) comprise a coating material feeder and a coating device. The coating device includes an aperture conforming to the perimeter of a substrate to be coated in a first and second dimension. As the substrate passes through the aperture, coating material is applied in a uniform and consistent layer. The coating material also back fills minor surface imperfections and blemishes on the substrate to achieve a consistent finish across the whole area where coating material is applied.
Abstract:
A first varnish 11 supplied from a first varnish tank 12 and a second varnish 13 supplied from a second varnish tank 14 are mixed by a mixer 15 to provide a varnish 2, and supplied to a varnish bath 18. Coating dies 19A-19F are connected to the varnish bath 18 via tubes 20A-20F. A wire 3 is installed into the coating dies 19A-19F through a hole 20a provided in each of the tubes 20A-20F. The varnish 2 supplied to the varnish bath 19 is dropped by its self weight through the tubes 20A-20F, and continuously supplied to the coating dies 19A-19F. The varnish 2 is applied to a surface of the wire 3 by the coating dies 19A-19F.
Abstract:
A coating apparatus and method for flimsy elongate members has at least one elongate funnel tube with an inlet, an outlet, and an intermediate portion, the inlet in a basin, a fluid circulating system suitable connecting the outlet to provide flow into the inlet. Each inlet receives an elongate flimsy component and utilizes the circulating fluid to pull the flimsy elongate member into the funnel tube whereby the coating of the flimsy elongate member is accomplished. The invention also includes the method for coating such a flimsy elongate member utilizing the coating apparatus.
Abstract:
Device for continuously depositing a treatment substance (20) on the surface of a thread (10), comprising: impregnation means (2) for impregnating the thread by dipping it into a bath designed to contain a solution of the treatment substance (20) in liquid form, through which bath the thread (10) runs when the device is in operation; draining means (3), placed downstream of the impregnation means (2), capable of removing the excess liquid (22) entrained by the thread; treatment means (4) placed downstream of the draining means (3), capable of making the liquid solution remaining on the thread solidify; and means (51, 52, 53, 54) suitable for guiding and running the thread (10) from the inlet to the outlet of the device along a direction df and at a speed Vf, wherein the draining means (3) include means capable of spraying said treatment liquid with an appropriately regulated velocity Vj towards the thread (10) in the form of jets (21) that converge in directions dj making an obtuse angle α with the direction df in which said thread (10) runs, so as to adjust the thickness e of liquid remaining on the thread (10) on leaving said draining means (3).
Abstract:
A system and method for coating a suture are disclosed. The system includes a spool including a core having a suture wrapped thereabout and a dip tank including a first coating composition. The dip tank is configured to submerge the spool therein, thereby coating the suture with the first composition to form a pre-coated suture. The system also includes a coating device including a second coating composition. The coating device is configured to overcoat the pre-coated suture with the second coating composition.