Patents by Inventor Venkat K. Iyer

Venkat K. Iyer 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).

  • Transfer system for a xerographic reproduction machine
    Patent number: 4341456
    Abstract: With the advent of low volume, low cost desk top copiers, a low cost transfer system is needed. The present invention uses a brush having conductive bristles, and a low voltage source, the brush being mounted adjacent to, but not in contact with a photoreceptor. A copy sheet is directed toward the bristles to deflect the bristles so that the bristles are in contact with the back side of the copy sheet as it contacts the toner image on the photoreceptor. Immediately before the trailing edge of the copy sheet moves out of contact with the photoreceptor, the brush is returned to its original position without contacting the photoreceptor.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: July 27, 1982
    Assignee: Xerox Corporation
    Inventors: Venkat K. Iyer, Stephen Borostyan, Timothy T. Blair
  • Transfer system for electrophotographic printing
    Patent number: 3994579
    Abstract: An apparatus in which charged particles are transferred from a support surface to a sheet of support material secured to a transfer member. The apparatus includes an electrically biased plate member positioned between the support surface and transfer member.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: November 30, 1976
    Assignee: Xerox Corporation
    Inventor: Venkat K. Iyer
  • Supply accessory for a printing or copying machine
    Patent number: D379194
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: May 13, 1997
    Assignee: Xerox Corporation
    Inventors: John D. Sundquist, Daniel C. Miller, Venkat K. Iyer