Patents by Inventor Dennis R. Kamp

Dennis R. Kamp 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).

  • Patent number: 5138388
    Abstract: Method and apparatus for the production of a hard copy reproduction of image information. After imagewise exposure of one or more uniform depositions of marking particles in one or more respective image frames on a web, the image frames are cleaned by a novel magnetic brush cleaning apparatus which provides a differential cleaning action, whereby the unexposed marking particles are removed while the exposed marking particles are left in place. The resulting transferable images are then transferred from the image frames to a one or more receivers. After transfer, each receiver is transported to a fuser where the transferred image is fixed.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: August 11, 1992
    Assignee: Eastman Kodak Company
    Inventors: Dennis R. Kamp, William Mey
  • Patent number: 5104765
    Abstract: A process is disclosed for making high resolution copies wherein a toned image is formed on a receiver. First, a uniform coating of clear toner particles is transferred to the surface of a receiver. Next, a latent electrostatic image is developed and transferred to the coated receiver by conventional electrostatic transfer technique.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: April 14, 1992
    Assignee: Eastman Kodak Company
    Inventors: Arun Chowdry, Dennis R. Kamp, Donald S. Rimai
  • Patent number: 5102767
    Abstract: A process is disclosed for making high resolution copies wherein a toned image is formed on a receiver. First, a uniform coating of nonmarking toner particles is transferred to the surface of a receiver. Next, a latent electrostatic image is developed and transferred to the coated receiver and the toned image is heat fused. Thus, the receiver has heat fused thereto a continuous coating of the nonmarking toner which is overlaid by a toned image of the marking toner.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: April 7, 1992
    Assignee: Eastman Kodak Company
    Inventors: Arun Chowdry, Dennis R. Kamp, Donald S. Rimai
  • Patent number: 4913992
    Abstract: An improvement in the method and apparatus for producing a multi-color electrophotographic image wherein an electrophotographic medium is mounted on a carrier therefor and is translated over a predetermined path so that the medium is first charged, then exposed to a first light-borne image and then toned. Thus, the unexposed portions of the image bearing charged region of the medium are toned, preferably by a liquid toner, to produce a first color visible image. The carrier is then returned to the first position to repeat the foregoing steps to charge the medium and to expose it to a second light-borne image and to tone the second image with a second toning element to produce a second color visible image on the same sheet of medium. One of the images formed is a cyan image.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: April 3, 1990
    Assignee: Eastman Kodak Company
    Inventors: Lawrence C. Steele, Kenneth E. Rook, Domenic Santilli, Dennis R. Kamp
  • Patent number: 4227796
    Abstract: Electrographic apparatus having an improved developer metering construction provides an elongated coil spring that extends across an applicator member's transport path (from the developer supply to the development zone) to meter and mix applied developer. Spring tension can be adjusted to control developer flow. In certain embodiments the spring provides a source of reference potential for and/or triboelectrically charges the developer and can enhance magnetic mixing of the developer.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: October 14, 1980
    Assignee: Eastman Kodak Company
    Inventors: Dennis R. Kamp, James D. Walling