Patents by Inventor Dennis Grabb

Dennis Grabb 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).

  • Publication number: 20070231004
    Abstract: A cleaning station for removing particulate material from a moving web in an electrographic printer/copier includes a customer-replaceable web-cleaner device with a support bracket/backup shoe assembly. A quick disconnect feature enables the cleaner cover to be de-coupled from the cleaner body to allow the debris to be easily removed with replacing the web-cleaner. The cleaner has a cleaner sump that is spring loaded to force contact of four strategically placed stops in the sump with a stationary back up shoe assembly allowing for higher precision of blade engagement with a transport web or a photoconductor. The web-cleaner has two wiper blades that are locked into the cleaner sump by springs, to facilitate dumping of material removed from the web without removing the cleaning blades.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 4, 2007
    Inventors: Francisco Ziegelmuller, Thomas Bidwell, Dennis Grabb, Daniel Palmer, Matthias Regelsberger
  • Publication number: 20060037441
    Abstract: This invention relates to a method for economically and efficiently producing cores for use in the production of an image cylinder or a blanket cylinder for use in an electrophotographic process.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 23, 2006
    Inventors: Steven Cormier, Edward Miskinis, Dennis Grabb
  • Publication number: 20050111889
    Abstract: A double-sleeved roller (DSR) including: a mandrel having a disconnectable end incorporating three termination plates having specified axial profiles; a replaceable inner sleeve member (ISM) mounted on the mandrel; and, a replaceable multilayer outer sleeve member (OSM) including at least one synthetic layer with the OSM surrounding the ISM. The mandrel, adapted to support a non-reinforced ISM, includes the termination plates joined together so as to define two sets of channels for selectively conveying pressurized air to either OSM or ISM for radial expansion thereof. The termination plates have specialized outer shapes, with each termination end plate including a cylindrical portion adjoining a tapered portion. For removal and/or replacement of the OSM or the ISM, a removable support member is moved away from the disconnectable end of the roller while the other end of the roller continues to be supported in cantilever fashion.
    Type: Application
    Filed: October 14, 2004
    Publication date: May 26, 2005
    Inventors: Steven Cormier, Dennis Grabb, Ralph Williams
  • Patent number: 6605399
    Abstract: A photoconductive sleeved primary image-forming member roller for use in an electrophotographic machine comprising a central member including a rigid cylindrical core member and a compliant layer formed on the core member; and a flexible, replaceable, removable, photoconductive sleeve member in the form of an endless tubular belt that surrounds and nonadhesively intimately contacts the central member.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 12, 2003
    Assignee: NexPress Solutions LLC
    Inventors: Arun Chowdry, Steven Cormier, Dennis Grabb, Diane M. Herrick, John W. May, Edward T. Miskinis, Michel F. Molaire, Biao Tan, Thomas N. Tombs
  • Patent number: 6541171
    Abstract: A photoconductive sleeved primary image-forming member roller for use in an electrophotographic machine comprising a central member including a rigid cylindrical core member and a compliant layer formed on the core member; and a flexible replaceable removable photoconductive sleeve member in the form of an endless tubular belt that surrounds and non-adhesively intimately contacts the central member.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: April 1, 2003
    Assignee: NexPress Solutions LLC
    Inventors: Arun Chowdry, Steven Cormier, Dennis Grabb, Diane M. Herrick, John W. May, Edward T. Miskinis, Michel F. Molaire, Biao Tan, Thomas N. Tombs
  • Publication number: 20030044704
    Abstract: A photoconductive sleeved primary image forming member roller for use in an electrophotographic machine comprising a central member including a rigid cylindrical core member and a compliant layer formed on the core member; and a flexible replaceable removable photoconductive sleeve member in the form of an endless tubular belt that surrounds and nonadhesively intimately contacts the central member.
    Type: Application
    Filed: October 22, 2002
    Publication date: March 6, 2003
    Inventors: Arun Chowdry, Steven Cormier, Dennis Grabb, Diane M. Herrick, John W. May, Edward T. Miskinis, Michel F. Molaire, Biao Tan, Thomas N. Tombs
  • Patent number: 6393226
    Abstract: An intermediate transfer member (IT) roller for use in an electrostatographic recording apparatus comprising a core member; a compliant layer covering the core member; and a stiffening layer covering the compliant layer, wherein the stiffening layer includes an endless belt that has a thickness in the range of greater than 50 and up to 1000 micrometers.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: May 21, 2002
    Assignee: NexPress Solutions LLC
    Inventors: Robert Charlebois, Arun Chowdry, Craig M. Cody, Earl Gomes, Dennis Grabb, Diane M. Herrick, Bonnie Patterson, Dean R. Smith, Kenneth E. Stack, Biao Tan, Thomas Tombs, Joseph A. Pavlisko
  • Patent number: 6377772
    Abstract: In accordance with the invention, there is provided a reproduction method including forming a toner image on a moving primary image-forming member (PIFM) which is a first double-sleeved roller including a rigid cylindrical core member, a replaceable removable compliant inner sleeve member (ISM) in nonadhesive intimate contact with and surrounding the core member, and a replaceable removable photoconductive outer sleeve member (OSM) in nonadhesive intimate contact with and surrounding the ISM; electrostatically transferring the toner image, from the PIFM to a counter-rotating intermediate transfer member (ITM) which is a second double-sleeved roller, in a first transfer nip width produced by a pressure contact between the PIFM and the ITM, an electric field urging the toner image from the PIFM to the ITM, wherein the ITM includes a rigid cylindrical core member, a compliant ISM in nonadhesive intimate contact with and surrounding the core member, and a compliant resistive OSM in nonadhesive intimate contact wi
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: April 23, 2002
    Assignee: NexPress Solutions LLC
    Inventors: Arun Chowdry, Craig M. Cody, Steven Cormier, Dennis Grabb, Diane M. Herrick, John W. May, Edward T. Miskinis, Michel F. Molaire, Biao Tan, Thomas Tombs, Joseph A. Pavlisko