Liquid layer applicator assembly
AssigneeXerox Corporation
InventorsJason LeFevre, Alexander J. Fioravanti
Life of this patent
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Abstract
A drum assembly in a printing machine comprises a rotating drum having a surface and an applicator assembly for applying oil onto the surface. The applicator assembly includes a liquid supply containing a supply of oil, a distributor connected to the liquid supply for distributing the oil, and an applicator having an area for receiving oil from the distributor and an application edge. The distributor and the applicator are configured so that oil distributed on the area of the applicator forms a meniscus at the application edge. The application edge is positioned closely adjacent but not in contact with the surface of the drum at a distance sufficiently close to the surface so that the surface contacts the meniscus to withdraw oil from the applicator onto the surface.
Claims36
An applicator assembly for applying a liquid layer onto a surface, the assembly and the surface movable relative to each other, the applicator assembly comprising:
- a liquid supply;
- an elongated tube connected to said liquid supply, the elongated tube having a plurality of apertures for distributing the liquid received from the liquid supply;
- an elongated blade positioned adjacent said elongated tube to receive the liquid passed through the plurality of apertures in the elongated tube, the elongated blade having an application edge, a long axis, a length along said axis, and an area for receiving the liquid distributed from said elongated tube;
- said elongated tube and said elongated blade being configured to enable liquid distributed on said area of said elongated blade to form a meniscus at said application edge, and
- said application edge is positioned closely adjacent but not in contact with the surface at a distance sufficiently close to the surface so that the surface contacts the meniscus to withdraw liquid from said elongated blade onto the surface.
A drum assembly in a printing machine comprising:
- a rotating drum having a surface;
- an applicator assembly for applying oil onto said surface, the assembly including;
- a liquid supply containing a supply of oil;
- an elongated tube connected to the liquid supply to distribute oil passing from the liquid supply through a plurality of apertures in the elongated tube;
- an elongated blade positioned along said elongated tube to receive oil from the apertures in the elongated tube, the elongated blade having an application edge, a long axis, a length along said axis, and an area for receiving oil from said elongated tube, said application edge extends substantially along the length of said elongated blade,
- said elongated tube and said elongated blade being configured to enable oil distributed on said area of said elongated blade to form a meniscus at said application edge, and
- said application edge is positioned closely adjacent but not in contact with said surface of said rotating drum at a distance sufficiently close to said surface to enable said surface to contact the meniscus to withdraw oil from said elongated blade onto said surface.
Dependencies are inferred from the claim text.