Patents by Inventor Gerald M. Kryk

Gerald M. Kryk 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: 5640657
    Abstract: A device for forming two twisted loops on the ends of a wire electrode to be used in scavengeless development. The wire is supported at both ends in a wire twisting apparatus and a specified tension is applied to the free ends of the wire. A crank is turned so that the both ends of the wire rotate at the same time. This causes the free ends of the wire to twist upon the suspended wire portion, two loops being formed at the ends of the wire. The twisted sections are stable and strong enough to maintain the loops when the wire is mounted in the development system.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: June 17, 1997
    Assignee: Xerox Corporation
    Inventors: Steven C. Hart, Gerald M. Kryk
  • Patent number: 5502549
    Abstract: An apparatus for filtering contaminants from marking particles within a conduit is provided. The apparatus includes a mover for moving the marking particles in the conduit and a screen positioned adjacent the conduit so that the marking particles pass through the screen. The apparatus also includes an applicator for applying an electrical bias between the mover and the screen to facilitate the passage of marking particles through the screen.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: March 26, 1996
    Assignee: Xerox Corporation
    Inventors: Steven C. Hart, Cyril G. Edmunds, Gerald M. Kryk
  • Patent number: 5421255
    Abstract: An electrostatic printer employing a photoconductive belt wrapped around multiple rollers. A motor drives a first roller. An elastic belt is wrapped around the first roller and a second roller, allowing the first roller to drive the second roller.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: June 6, 1995
    Assignee: Xerox Corporation
    Inventor: Gerald M. Kryk
  • Patent number: 5253016
    Abstract: In a development system for conveying toner to a latent image on a surface in an electrophotographic printing apparatus, including a donor structure spaced from the charge retentive surface for conveying toner to a development zone adjacent the surface and an electrode structure disposed between the donor structure and the surface, contaminants are removed from the development zone by a flow of air away from the development zone.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: October 12, 1993
    Assignee: Xerox Corporation
    Inventors: Thomas J. Behe, Daniel M. Bray, Jeffrey J. Folkins, Gerald M. Kryk, Joseph G. Schram, Cyril Edmunds
  • Patent number: 5153647
    Abstract: An apparatus which develops an electrostatic latent image recorded on a photoconductive member with toner particles. A donor member is spaced from the photoconductive member and transports toner particles to a development zone adjacent the photoconductive member. Electrode wires are positioned in the development zone between the photoconductive member and the donor member. The electrode wires are electrically biased to detach toner particles from the donor member to form a cloud of toner particles in the development zone. Toner particles detached from the toner particle cloud develop the latent image. The electrode wires are adjustably supported in tension adjacent the donor member.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: October 6, 1992
    Assignee: Xerox Corporation
    Inventors: Laurence S. Barker, Thomas J. Behe, Daniel M. Bray, James R. Davidson, Jeffrey J. Folkins, Gerald M. Kryk, Joseph G. Schram