The present invention is directed to a certain method of catalytically coating a honeycomb monolith, in particular a so-called flow-through monolith. These types of monoliths can be quite precisely be coated by a method using an indirect coating via a displacement body. The present invention further improves this method through controlling the process by monitoring the certain measures.

The present invention is directed to a certain method of catalytically coating a honeycomb monolith, in particular a so-called flow-through monolith. These types of monoliths can be quite precisely be coated by a method using an indirect coating via a displacement body. The present invention further improves this method through controlling the process by monitoring the certain measures.

An apparatus and a method for coating substrates with washcoats in which a substrate (10) is engaged with a headset (6) of a substrate coating apparatus (1) below a washcoat showerhead (5) are disclosed. The washcoat is discharged from the washcoat showerhead (5) onto an upper surface (12) of the substrate under control of a valve assembly (4) before being drawn through the substrate by use of a vacuum generator (7). The valve assembly (4) comprises an outlet valve movable between a closed state and an open state. The valve assembly (4) creates a pressure drop within an interior of the washcoat showerhead (5) when the outlet valve moves from its open state to its closed state.

A substrate coating apparatus is disclosed. A substrate coating apparatus comprises: a source of a washcoat; a washcoat showerhead for discharging the washcoat towards an upper surface of a substrate; a conduit fluidly connecting the source of the washcoat to the washcoat showerhead for supplying washcoat to the washcoat showerhead; a headset for engaging the substrate to locate the upper surface of the substrate below the washcoat showerhead; and a vacuum generator for drawing the washcoat discharged from the washcoat showerhead through the substrate. The headset comprises a headset seal for engaging against the substrate. The headset seal comprises a perimetral portion that extends around the headset and a cantilevered portion that extends down from the perimetral portion and which is configured to engage against a sidewall of the substrate.

A substrate coating apparatus is disclosed. A substrate coating apparatus comprises: a source of a washcoat; a washcoat showerhead for discharging the washcoat towards an upper surface of a substrate; a conduit fluidly connecting the source of the washcoat to the washcoat showerhead for supplying washcoat to the washcoat showerhead; a headset for engaging the substrate to locate the upper surface of the substrate below the washcoat showerhead; and a vacuum generator for drawing the washcoat discharged from the washcoat showerhead through the substrate. The headset comprises a headset seal for engaging against the substrate. The headset seal comprises a perimetral portion that extends around the headset and a cantilevered portion that extends down from the perimetral portion and which is configured to engage against a sidewall of the substrate.

The disclosure relates to a substrate coating apparatus that comprises a source of a washcoat; a washcoat showerhead for discharging the washcoat towards an upper surface of a substrate; a conduit fluidly connecting the source of the washcoat to the washcoat showerhead for supplying washcoat to the washcoat showerhead; a headset for engaging the substrate to locate the upper surface of the substrate below the washcoat showerhead; and a vacuum generator for drawing the washcoat discharged from the washcoat showerhead through the substrate. The headset comprises a partition comprising a plurality of holes, the partition being located in between the washcoat showerhead and the upper surface of the substrate when the substrate is engaged in the headset so as to maintain a first gap between a lower face of the partition and the upper surface of the substrate.

An apparatus for coating an inner surface of a medical tube includes a housing, an injection unit, a drying unit, and a supply unit. The housing defines an external shape of the apparatus and provides a workspace. The injection unit is positioned in an upper portion of the workspace and injects a coating fluid into a medical tube connected to a nozzle tip formed at a lower end thereof. The drying unit is positioned on the injection unit and dries the coating fluid introduced into the medical tube. The supply unit positioned in a lower portion of the workspace and collects a residual coating fluid discharged from a lower end of the medical tube and transfers the collected residual coating fluid to a supply valve of the injection unit. The apparatus can easily, uniformly, and efficiently coat the inner surface of a long medical tube such as a catheter.

A method for coating a monolithic porous catalyst support having a plurality of channels formed in a longitudinal direction with a catalyst slurry, and a device therefor are proposed. A pressure dispersion coating device for a porous catalyst support includes: a slurry quantitative input means; a container being variable in volume, having an open upper part thereof into which a slurry is input by the slurry quantitative input means, and having a bottom thereof movable; a container moving means fastened to one side of the container; a moving means fastened to a lower part of the container and having a shaft connected to the bottom of the container; an overflow outlet being formed on a side part of the container and provided with a valve; and a pressurizing means disposed on the open upper part of the container.

A method of applying a treatment to a surface of an open body having a volume within an interior of the open body comprises; providing an inner structure (110) shaped to complement the shape of the interior of the open body and to fill a major portion of the volume or a major portion of a width of the interior of the open body; positioning the inner structure (110) within the open body in order to form a treatment fluid inner volume comprising an inner space (150) confronting an inner surface within the interior of the open body; and introducing a treatment fluid into the treatment fluid inner volume to thereby modify the inner surface of the open body by applying the treatment using the treatment fluid. Optionally, the method includes providing a tank (120) shaped to complement and contain the open body; positioning the open body within the tank (120) in order to form a treatment fluid outer volume comprising an outer space confronting the outer surface of the open body; and introducing the treatment fluid into the treatment fluid outer volume to thereby modify the outer surface of the open body by applying the treatment using the treatment fluid.

A method of applying a treatment to a surface of an open body having a volume within an interior of the open body comprises; providing an inner structure (110) shaped to complement the shape of the interior of the open body and to fill a major portion of the volume or a major portion of a width of the interior of the open body; positioning the inner structure (110) within the open body in order to form a treatment fluid inner volume comprising an inner space (150) confronting an inner surface within the interior of the open body; and introducing a treatment fluid into the treatment fluid inner volume to thereby modify the inner surface of the open body by applying the treatment using the treatment fluid. Optionally, the method includes providing a tank (120) shaped to complement and contain the open body; positioning the open body within the tank (120) in order to form a treatment fluid outer volume comprising an outer space confronting the outer surface of the open body; and introducing the treatment fluid into the treatment fluid outer volume to thereby modify the outer surface of the open body by applying the treatment using the treatment fluid.