Patents by Inventor Robert Richard Murray
Robert Richard Murray has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6742454Abstract: A method for modifying an image surface of a printing plate includes identifying a location of a pixel of an image at the image surface, an ink being disposed at the location of the pixel. The ink at the location of the pixel is then irradiated using a laser imaging system. The ink may be cured by the radiation so that it is hardened and useable to receive liquid ink and be used as a printing surface. The ink may be ablated and removed. Individual pixels of the image may be added or removed from the printing surface.Type: GrantFiled: October 30, 2001Date of Patent: June 1, 2004Assignee: Heidelberger Druckmaschinen AGInventor: Robert Richard Murray
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Patent number: 6634294Abstract: A printing press comprises a cylinder having an outer surface and a plurality of air holes for providing air to the outer surface. A sound-damping material is located on a section of the outer surface and an axially-removable printing sleeve fits over the outer surface. Also disclosed is a method for reducing noise from a printing press comprising the steps of providing air through air holes in a cylinder having a free end to aid in placement or removal of an axially-removable printing sleeve, and providing a sound-damping surface to an outer surface of the cylinder at the free end.Type: GrantFiled: November 28, 2001Date of Patent: October 21, 2003Assignee: Heidelberger Druckmaschinen AGInventors: Ronald Henry Boucher, Robert Richard Murray, John Sheridan Richards, Dan Alan Thomas
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Publication number: 20030079635Abstract: A method for modifying an image surface of a printing plate includes identifying a location of a pixel of an image at the image surface, an ink being disposed at the location of the pixel. The ink at the location of the pixel is then irradiated using a laser imaging system. The ink may be cured by the radiation so that it is hardened and useable to receive liquid ink and be used as a printing surface. The ink may be ablated and removed. Individual pixels of the image may be added or removed from the printing surface.Type: ApplicationFiled: October 30, 2001Publication date: May 1, 2003Inventor: Robert Richard Murray
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Patent number: 6546867Abstract: A variable-diameter cylindrically-shaped body includes a plurality of first tapered elements and a plurality of second tapered elements interacting with the first tapered elements and movable axially with respect to the first tapered elements. The first and second tapered elements define an outer surface of the body, with the outer surface having an effective diameter variable as a function of axial movement between the first and second tapered elements. The body has particular applicability in printing presses.Type: GrantFiled: April 30, 2001Date of Patent: April 15, 2003Assignee: Heidelberger Druckmaschinen AGInventors: Stephen Franklin, Robert Richard Murray
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Publication number: 20020035934Abstract: A printing press comprises a cylinder having an outer surface and a plurality of air holes for providing air to the outer surface. A sound-damping material is located on a section of the outer surface and an axially-removable printing sleeve fits over the outer surface. Also disclosed is a method for reducing noise from a printing press comprising the steps of providing air through air holes in a cylinder having a free end to aid in placement or removal of an axially-removable printing sleeve, and providing a sound-damping surface to an outer surface of the cylinder at the free end.Type: ApplicationFiled: November 28, 2001Publication date: March 28, 2002Inventors: Ronald Henry Boucher, Robert Richard Murray, John Sheridan Richards, Dan Alan Thomas
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Patent number: 6347586Abstract: A printing press comprises a cylinder having an outer surface and a plurality of air holes for providing air to the outer surface. A sound-damping material is located on a section of the outer surface and an axially-removable printing sleeve fits over the outer surface. Also disclosed is a method for reducing noise from a printing press comprising the steps of providing air through air holes in a cylinder having a free end to aid in placement or removal of an axially-removable printing sleeve, and providing a sound-damping surface to an outer surface of the cylinder at the free end.Type: GrantFiled: April 19, 2000Date of Patent: February 19, 2002Assignee: Heidelberger Druckmaschinen AGInventors: Ronald Henry Boucher, John Sheridan Richards, Robert Richard Murray, Dan Alan Thomas
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Patent number: 6209456Abstract: A printing unit of a rotary printing press for using various ink types, particularly water-based inks, is provided. The printing unit includes an inking mechanism, a print cylinder, and a blanket cylinder. The inking mechanism and the cylinders are mounted in side walls of the printing unit. A housing at least partially surrounds the inking mechanism and the cylinders to maintain a surrounding atmosphere within an at least semi-enclosed area of the printing unit. A chemical agent may be selectively added to the atmosphere in the semi-enclosed area to reduce the rate of evaporation of a substance in the ink. The printing unit also includes a cooling unit for maintaining an ink carrying surface of one or more of the print form, the printing blanket, and the inking unit at a predetermined temperature which is suitable for printing with water-based inks. The printing unit may be a sheet-fed printing press.Type: GrantFiled: January 9, 1998Date of Patent: April 3, 2001Assignee: Heidelberger Druckmaschinen AGInventors: Robert Richard Murray, Roland Thomas Palmatier
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Patent number: 6161479Abstract: A lithographic printing plate comprises a plate body with a plurality of predetermined breaking points formed therein. The breaking points extend from a leading end to a trailing end of the printing plate. The predetermined breaking points define edges of sub-plates, each carrying an image which corresponds to a newspaper page of a newspaper to be printed with the lithographic printing plate. The printing plate can be mounted on the plate cylinder of a lithographic rotary printing press as one piece and can afterwards be broken up at the predetermined breaking points, in order to exchange one of the sub-plates against another sub-plate for a new print job, in case of an edition change.Type: GrantFiled: December 23, 1998Date of Patent: December 19, 2000Assignee: Heidelberger Druckmaschinen AGInventor: Robert Richard Murray
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Patent number: 6041706Abstract: A printing press includes an interchangeable plate cylinder, in which the plate cylinder may have variable cutoff diameters. The plate cylinder is mounted in the printing press in rolling contact with a fixed diameter blanket cylinder. The ink rollers of the inker mechanism may be positionally adjusted to accommodate a plate cylinder of various diameters. The surface of the printing blanket which is mounted on the blanket cylinder includes a material of low polarity surface energy, such as PTFE. The ink used in the press is selected such that, in combination with the PTFE of the blanket surface, the ink does not remain as a latent image on the blanket cylinder after transfer of the image from the blanket cylinder to a web of material.Type: GrantFiled: May 15, 1998Date of Patent: March 28, 2000Assignee: Heidelberger Druckmaschinen AGInventor: Robert Richard Murray
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Patent number: 5987949Abstract: A plate scanner-bending device having a plate bed for receiving a printing plate and a plate driver for moving the printing plate along the plate bed is disclosed. At least one scan sensor is located above the plate bed for scanning an image on the printing plate for density, along with at least one register sensor for sensing a register mark on the printing plate. The plate bed has at least one anvil at one end for a bending mechanism for bending the plate.Type: GrantFiled: March 18, 1997Date of Patent: November 23, 1999Assignees: Heidelburg Harris, Inc., Heidelberger Druckmaschinen AGInventors: Roland Thomas Palmatier, Jackson Hacker Jones, Robert Richard Murray, John Sheridan Richards
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Patent number: 5947026Abstract: An apparatus for preventing marking of a web which locally cools the web and thereby raises the viscosity of the ink imprinted thereon downstream of an initial cooling of the web. The cooling device may include liquid cooling of rolls in the press, air cooling of a contained environment of the press, or forcing a cooling gas onto a surface of the printed web.Type: GrantFiled: May 1, 1998Date of Patent: September 7, 1999Assignees: Heidelberger Druckmaschinen AG, Heidelberg Harris Inc.Inventors: Robert Richard Murray, John Sheridan Richards
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Patent number: 5758580Abstract: A printing unit (1) of a rotary printing press for using various ink types is provided. The printing unit includes an inking mechanism (45), a print cylinder (3), and a blanket cylinder (2). The inking mechanism (45) and the cylinders (2, 3) are mounted in side walls of the printing unit (1). A housing (14) at least partially surrounds the inking mechanism (45) and the cylinders (2, 3) to maintain a surrounding atmosphere within an at least semi-enclosed area (100) of the printing unit (1). A chemical agent is selectively added to the atmosphere in the semi-enclosed area (100) to reduce the rate of evaporation of a substance in the ink.Type: GrantFiled: March 13, 1996Date of Patent: June 2, 1998Assignees: Heidelberger Druckmaschinen AG, Heidelberg Harris, Inc.Inventor: Robert Richard Murray