Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8146493 | Ink fountain of a printing press, ink fountain roll and printing press An ink fountain of a printing press includes a component having a bearing face for bearing printing ink and cells made in the bearing face. An ink fountain roll for an ink fountain of a printing press and a printing press having an ink fountain, are also provided. | 04/03/2012 |
| 8001895 | Inking unit of a rotary press, comprising a film roller An inking unit of a rotary printing press includes a film roller. The film roller has a structured outer surface that has a Shore D hardness ranging between 80 and 90 and a stochastic surface. The stochastic surface is incorporated into the outer surface of the film... | 08/23/2011 |
| 7891293 | Use of laser-engraved printing forms The present invention relates to the use of laser-engraved printing forms for printing using printing inks in a gravure printing process, where the printing inks are pigmented with flake-form effect pigments, to a corresponding gravure printing process, and to a pri... | 02/22/2011 |
| 7610853 | Inking roller comprising a structured surface An inking roller for an inking system has, distributed over the surface on a ink-transferring surface (S), circumferential flutes (3). The longitudinal flutes (4) intersect the circumferential flutes (3) and elevated surface areas as said webs (... | 11/03/2009 |
| 7607390 | Printing press and method for operating the same A printing press includes an anilox inking unit with an engraved roller and a doctor-type ink fountain. At least one stirring element projects into the doctor-type ink fountain. ... | 10/27/2009 |
| RE40160 | Method for controlling a quantity of medium transferable between two rollers A method for controlling a quantity of medium transferable from a screen roller of a printing machine onto a roller that is in contact with the screen roller includes exerting an influence upon a difference in circumferential speed between the screen roller and the ... | 03/25/2008 |
| 7082874 | Short inking unit A short inking unit for a planographic printing unit that has a compact design and is operable for transferring an ink film to a form cylinder with high uniformity and stability. This short inking unit includes an applicator roll arrangement having a plurality of ap... | 08/01/2006 |
| 6892637 | Self-inking stamp with ink cartridge barrier A stamp pad holder for use in a self-inking hand stamp. The stamp pad holder has a stamp die box that holds a stamp forming material, ink cartridge and plastic within the die box. The stamp forming material is placed at the bottom of the die box. A pre-inked ink car... | 05/17/2005 |
| 6886461 | Short inking system for a rotary printing machine A short inking unit for a rotary printing machine is provided. The short inking unit includes a changeable machine glazing cylinder. ... | 05/03/2005 |
| 6850311 | Method of manufacturing electro-optical device by flexography for reduced moire When an alignment film 416 and an overcoating film 429 are formed by flexography on the front side of a second transparent substrate 420, on which color filters 407R, 407G, and 407B are formed at a predetermined same-color p... | 02/01/2005 |
| 6789478 | Device and method for controlling fluid delivery A device for controlling delivery of an amount of fluid has a first rotating device having at least one peripheral first fluid transfer section, a second rotating device having at least one peripheral second fluid transfer section, and a device for setting a phase b... | 09/14/2004 |
| 6786153 | Printing rolls having wear indicators and methods for determining wear of printing and anilox rolls and sleeves A printing device, system and method are disclosed for measuring and displaying the amount of wear experienced by printing rolls. A wear detection mechanism is employed in connection with rolls, such as anilox-type rolls that transfer ink to a substrate in forming a... | 09/07/2004 |
| 6701839 | Fluid metering roll with raster line interruptions A printing tool comprising a raster formed of a grid of intersecting raster lines which raster lines form raster points between them. The raster comprises at least one region in which each raster point is connected to at least one other raster point adjac... | 03/09/2004 |
| 6668724 | Method for controlling a quantity of medium transferable between two rollers A method for controlling a quantity of medium transferable from a screen roller of a printing machine onto a roller that is in contact with the screen roller includes exerting an influence upon a difference in circumferential speed between the screen roll... | 12/30/2003 |
| 6655280 | Inking unit in a printing machine having a chambered doctor blade and multiple inking zones An inking unit in a printing machine includes a screen roller and an ink metering system subdivided into inking zones and assigned to the screen roller for performing zonal ink metering on the screen roller, the ink metering system having metering element... | 12/02/2003 |
| 6492095 | Screened film intermediate for use with flexographic printing plate having improved solids rendition flexographic printing plate having solid image areas which are covered by a plurality of very small and shallow cells similar to the ink carrying cells found in anilox ink metering rolls. These cells fill with ink during the plate inking step and reproduc... | 12/10/2002 |
| 6308623 | Meterable screen roller in a rotary printing machine A meterable screen roller having a peripheral surface whereon a multiplicity of printing ink-accepting depressions are disposed includes a respective base for the depressions formed by a resilient material, and respective chambers located underneath and a... | 10/30/2001 |
| 6213018 | Flexographic printing plate having improved solids rendition A flexographic printing plate having solid image areas which are covered by a plurality of very small and shallow cells similar to the ink carrying cells found in anilox ink metering rolls. These cells fill with ink during the plate inking step and reprod... | 04/10/2001 |
| 6006665 | Pliable anilox roller A printing press includes an anilox roller having a rigid inner core and a replaceable, resilient, pliable sleeve having ink cells defined in the outer surface thereof. The anilox roller rotates in contact with two spaced doctor blades defining an opening... | 12/28/1999 |
| 5603262 | Ink-furnishing apparatus An ink furnishing apparatus for a printing press for performing printing by furnishing an ink to a printing plate on a plate cylinder is selectively operable in an entire surface ink furnishing mode, in which a first gap is held fully opened, the doctor m... | 02/18/1997 |
| 5429046 | Dampening roller and method for producing the same and dampening systems for a printing apparatus employing the dampening roller A dampening system for a printing apparatus includes a print plate, a printing cylinder contacting the print plate and adapted to supply water to the print plate, a feed device for feeding water to the printing cylinder, and a dampening roller adapted to ... | 07/04/1995 |
| 5425809 | Anilox coater with brush Air bubbles which are entrapped within the cells of an engraved applicator roller are displaced from the cells by wiping the surface of the engraved applicator roller with the bristles of a brush. An elongated brush mounted on a doctor blade head projects... | 06/20/1995 |
| 5413041 | High-speed web-fed flexographic printer A printer comprising a printing roller supporting a matrix strip; a pressure roller for pressing the web on to the matrix at a first portion of the printing roller; and an inking unit including an inking roller contacting the matrix at a second portion of... | 05/09/1995 |
| 5233921 | Printing machine system and inking method To form a cellular surface layer in which the depth or shape of the cells is controllable, the layer is composed of a material which has a temperature-dependent shape retention memory, which is embossed or engraved, without material removal, on a carrier,... | 08/10/1993 |
| 5184552 | Ink roller for rotary press An ink metering roller for a keyless inking system which comprises a steel or aluminum roller core and an outer surface of highly wear-resistant hard particles imbedded in an oleophilic and hydrophobic bonding matrix, which matrix is subject to wear by co... | 02/09/1993 |
| 5018445 | Magnetically delivered ink A printing composition comprising magnetic particles suspended in a liquid medium also having therein a coloring agent, the relative amounts of the particles and the coloring agent being controlled whereby the color of the composition is principally that ... | 05/28/1991 |
| 5016530 | Ink mover distributor roll An ink distributor roll is made of base rubber and two soft rubber helixes. When the ink distributor roll is used adjacent another roll, the soft rubber helixes deform to form pockets between the ink distributor roll and the other roll. The pockets move i... | 05/21/1991 |
| 4896601 | Inking unit for rotary printing presses An inking unit is for a rotary printing press having ink rollers for providing ink to a printing plate of a plate cylinder. The inking unit includes an ink fountain and an ink fountain roller for receiving a supply of the ink thereon from the ink fountain... | 01/30/1990 |
| 4819558 | High efficiency fluid metering roll A fluid metering roll is embossed with chains of cells, the cells of each chain being interconnected by channels. Certain of the walls of the cells are aligned at critical angles relative to the axis of the roll. The channels are oriented and arranged to ... | 04/11/1989 |
| 4805530 | Printing machine inker system To permit accurate control of ink being transferred by an ink transfer roller from an ink source (6; 15, 16, 17) to an ink accepting roller (1, 10), the transfer roller (2, 11) has a surface layer (3, 12) which is made of compressible material, the surfac... | 02/21/1989 |
| 4753165 | Short inking unit for an offset rotary printing machine A short inking unit for an offset rotary printing machine utilizes a heated ink transport cylinder having a particular surface with varying degrees of hydrophilicity, and an array of air blowing nozzles which cooperate to reduce or virtually eliminate con... | 06/28/1988 |
| 4737378 | Roll coater control method and roll coater Prior to starting, the size of a clearance, defined on a second end side of a roll when an end of a coating roll is brought into contact with a first end side of a doctor or back-up roll, is measured and stored as data in a memory. After starting, the amo... | 04/12/1988 |
| 4682543 | Ink or moisture roller for duplicating machines An ink or moisture pickup roller for feeding ink or moisture from a reservoir or fountain roller to a transfer roller. The surface of the pickup roller is formed by a plurality of spaced circular ribs defining a pattern of generally parallel ridges and va... | 07/28/1987 |
| 4627346 | Rotative printing process and apparatus for carrying out said process In a rotative printing process, especially in flexographic printing and indirect gravure (plate) printing, heat is supplied to the solvent containing printing ink so as to evaporate a portion of the solvent and ensure a reliable emptying of the screen-rol... | 12/09/1986 |
| 4619198 | Method and apparatus for keyless offset printing A keyless printing method and apparatus that employs an engraved drum with discrete proportioning ink and water attracting areas to transfer ink and water to a plate cylinder without metering blades at the drum.... | 10/28/1986 |
| 4604951 | Intaglio printing machine An intaglio printing machine includes a plate cylinder having a plate thereon, a pattern roller having projections which are in rolling contact with the outer surface of the plate, and an inking unit with a duct roller which is in rolling contact with the... | 08/12/1986 |
| 4590855 | Reverse angle doctor blade assembly with stationary end seal A reverse doctor blade assembly dispenses and applies a liquid such as ink or an adhesive to the surface of a rotating transfer roll. The assembly has a reservoir chamber which is sealed at its ends by resilient end seals which are pressed against corresp... | 05/27/1986 |
| 4537127 | Black oxide lithographic ink metering roller A steel ink metering roller for use in lithographic printing having an engraved surface that has been nitride hardened followed by an oxidizing process that results in a surface with a composition of mainly Fe3 O4.... | 08/27/1985 |
| 4449451 | Inking unit for printing presses In an inking unit for a printing press having an ink duct with an ink-duct roller revolvable at a given speed therein, a transfer roller in rolling contact with the ink-duct roller, the transfer roller having an outer cylindrical surface formed with a plu... | 05/22/1984 |
| 4428291 | Inking unit for a printing press For producing quality work on a printing machine using a hard printing plate and high viscosity printing ink taken up by a fountain roller running in an ink fountain and transported by the fountain roller to an ink drum running against at least one form r... | 01/31/1984 |
