Patents by Inventor Timothy T. Blair

Timothy T. Blair 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: 4497567
    Abstract: Electrostatographic apparatus and method for transferring charged toner present in an image configuration on an insulating layer bearing an electrostatic latent image are illustrated. The technique involves forming a sandwich comprising the insulating layer with a conductive substrate bearing a toner image on its surface, a copy substrate, a dielectric layer, and a conductive electrode together with means for applying a potential to the conductive electrode after the sandwich is formed, the potential being of a magnitude sufficient to create an electric field to transfer toner from the insulating layer to the copy substrate. The apparatus also includes means to discharge the electrostatic latent image on the insulating layer before separation of the sandwich and means to strip the copy substrate from the dielectric layer while the field is applied to provide a toner image on the copy substrate.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: February 5, 1985
    Assignee: Xerox Corporation
    Inventors: Charles A. Gage, Timothy T. Blair, Thomas W. Morgan
  • Patent number: 4496233
    Abstract: Electrostatographic reproducing apparatus comprising a reusable electrostatographic imaging web having an insulating imaging surface positioned between a web supply roll and a web take up roll, each roll being fastened to the end of the web. The web is provided with means to form an electrostatic latent image on the web and develop said image with a toner image. The image is formed and developed on the passage of the web from the supply roll to the take up roll where the web in the toner image therein is brought into contact with a copy sheet and wound around the take up roll during the first cycle of a two cycle imaging process.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: January 29, 1985
    Assignee: Xerox Corporation
    Inventors: Charles A. Gage, Timothy T. Blair, Thomas W. Morgan
  • Patent number: 4494858
    Abstract: Electrostatographic reproducing apparatus comprising a movable imaging surface, transport means to transport the imaging surface along a path past the series of operational processing stations wherein a toner image and copy substrate contact station is provided, and wherein the distance along the imaging surface path from the image forming station where the lead edge of an image is formed on the imaging surface to the initial line of contact of the imaging surface with the copy substrate is equal to the distance along the copy substrate path from the copy sheet entrance to the initial line of contact of the lead edge of the copy substrate with lead edge of the image on the imaging surface. The apparatus further includes means at the beginning of each imaging cycle to simultaneously actuate the movable imaging surface with a copy substrate transport whereby the lead edge of the formed image on the imaging surface and the lead edge of the copy substrate simultaneously arrive at the initial line of contact.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: January 22, 1985
    Assignee: Xerox Corporation
    Inventors: Charles A. Gage, Timothy T. Blair, Thomas W. Morgan
  • Patent number: 4490033
    Abstract: Electrostatographic reproducing apparatus comprising a reusable electrostatographic imaging web having an insulating imaging surface positioned between a web supply roll and a web take up roll each roll being fastened to the end of the web. The web is provided with means to form an electrostatic latent image on the web and develop said image with a toner image. The image is formed and developed upon the passage of the web from the supply roll to the take up roll, where the web with the toner image thereon is brought into contact with a copy sheet and wound around the take up roll during the first cycle of a two cycle imaging process. During the second cycle of the imaging process the web is unwound from the take up roll and rewound on the supply roll with the toner image being transferred to the copy substrate, separated from the imaging web, with the web being fully rewound on the web supply roll.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: December 25, 1984
    Assignee: Xerox Corporation
    Inventors: Charles A. Gage, Timothy T. Blair, Thomas W. Morgan
  • 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