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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7685738 | Computer to plate color sensor and drying/curing system and method A printing plate curing system includes a color sensor that measures at least one color value of a printing plate. The color value is used to control a parameter of a curing system, such as energy output or conveyor speed. Multiple color sensors may be used to measu... | 03/30/2010 |
| 7669530 | UV curing assembly having sheet transfer unit with heat sink vacuum plate A sheet transfer assembly for use above an ultraviolet curing unit in a flexographic printing press used for printing corrugated sheets includes a vacuum plate with heat sinks. The vacuum plate includes openings for rollers that extend through the vacuum plate to dr... | 03/02/2010 |
| 7273007 | Portable printer coater A portable printer coater for use with a printing press includes: a counter for indicating wear on seal components, a system for installing and removing the coater without lifting, and a tensioner for improving lifetime of seals in the chambered doctor. The counter ... | 09/25/2007 |
| 7225560 | Computer to plate curing system A system for curing printing plates with controlled radiant energy sources. A conveyor moves a printing plate through a chamber having energy radiators above and below the conveyor. Power to the radiators is controlled for each radiator or to groups of radiators def... | 06/05/2007 |
| 7082873 | Inexpensive, wash-free integrated cover for printing press transfer cylinders The invention is a simple, inexpensive, wash-free integrated cover for a printing transfer cylinder (preferably, but not necessarily, in a Komori press), comprising a flexible jacket covering permanently attached to a cylinder base cover. The invention provides adva... | 08/01/2006 |
| 7048011 | Printing press cylinder flexible jacket covering A flexible jacket covering for a printing press transfer cylinder having a low density selvage for attaching one edge of the jacket to a hook and loop attachment strip on the transfer cylinder. The covering is cut from fabric woven on a shuttleless loom. The fabric ... | 05/23/2006 |
| 7021210 | Printing press cylinder A multipart printing press cylinder. A pair of hubs have an inner bore for mounting on a press shaft. Each hub is made in two parts which may be positioned about the press shaft and attached to each other by, e.g. screws. Each hub has a profile section. A pair of pa... | 04/04/2006 |
| 6973874 | Zoned ultraviolet curing system for printing press A zoned UV curing system for drying UV inks and coatings in printing presses. A plurality of linear UV lamps are spaced apart laterally across the travel path of substrates in a press. The axis of each lamp is aligned generally with the travel path, but may be slant... | 12/13/2005 |
| 6807906 | Zoned ultraviolet curing system for printing press A zoned UV curing system for drying UV inks and coatings in printing presses. A plurality of linear UV lamps are spaced apart laterally across the travel path of substrates in a press. The axis of each lamp is aligned generally with the travel path, but may be slant... | 10/26/2004 |
| 6644190 | Cylinder impurity remover apparatus A removable, compact and easily accessible cylinder impurity remover apparatus has a wiping position for removing impurities from a rotatable printing plate cylinder on a printing press and a non-wiping position. The impurity remover removeably slides or ... | 11/11/2003 |
| 6457412 | Cylinder impurity remover apparatus A removable, compact and easily accessible cylinder impurity remover apparatus has a wiping position for removing impurities from a rotatable printing plate cylinder on a printing press and a non-wiping position. The impurity remover removeably slides or ... | 10/01/2002 |
| 6427594 | Infra-red forced air dryer and extractor An infra-red dryer utilizes high velocity air jets which scrub and break up the moist air layer which clings to the surface of a freshly printed and/or coated sheet. The high velocity air jets are directed through multiple air flow apertures across an arr... | 08/06/2002 |
| 4977828 | Transfer roller device for printing presses A roller transfer device for use in sheet fed rotary printing presses of the type employing a one and one half to one delivery system, the transfer device comprising a frame mounted to a drive shaft adjacent the press impression cylinder, and supporting d... | 12/18/1990 |
| 4967656 | Eccentric cylinder for sheet-fed rotary printing presses A transfer or delivery cylinder for a sheet-fed rotary printing press having an endless chain conveyor carrying gripper bars and grippers and driven by a sprocket wheel concentrically mounted on a drive shaft for pulling freshly printed sheets from the im... | 11/06/1990 |
