Patents by Inventor Stephen P. Fraczek

Stephen P. Fraczek 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).

  • Method for cooling a web
    Patent number: 5669158
    Abstract: A method of removing heat from a moving web includes providing a quantity of a liquid which has a temperature of vaporization below the surface temperature of the web; heating the liquid to a temperature slightly below the temperature of vaporization of the liquid; spraying the heated liquid onto the surface of the web; and vaporizing liquid from the surface of the web to cool the web. In a preferred embodiment, an electrically charged screen is disposed intermediate the sprayer and the web. The liquid passes through openings in the screen to form electrically charged droplets of liquid which move onto the surface of the web. An apparatus for removing heat from a moving web includes liquid supply means for providing a liquid having a temperature of vaporization below the surface temperature of the web; heater means for heating the liquid to a temperature slightly below its temperature of vaporization; and sprayer means for spraying the heated liquid onto the surface of the web.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: September 23, 1997
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Robert R. Murray, Stephen P. Fraczek, Dale H. Jackson
  • Device for the identification of a flexible roller shell
    Patent number: 5323704
    Abstract: A device for the identification of a roller shell includes a microchip incorporated into a flexible material roller shell for printing presses. A scanning device excites the microchip for emitting signals permitting a definite identification of the microchip and of the roller shell.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: June 28, 1994
    Assignee: Heidelberg-Harris GmbH
    Inventor: Stephen P. Fraczek
  • Method and apparatus for setting respective positions of ink keys
    Patent number: 5138944
    Abstract: Adjustable ink keys are adjusted to move associated portions of a doctor blade relative to associated portions of an ink roll of a printing unit. Each portion of the doctor blade is moved into contact with the associated portion of the ink roll. Each portion of the doctor blade is then moved a predetermined amount away from the associated portion of the ink roll after the portion of the doctor blade has moved into contact with the portion of the ink roll. A measured value associated with the position of the associated ink key is stored in memory. The stored measured value is indicative of the position of the associated ink key after the portion of the doctor blade has moved the predetermined amount away from the portion of the ink roll. The stored measured value corresponds to the lithographic zero position of the ink key.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: August 18, 1992
    Assignee: Heidelberg Harris Inc.
    Inventors: Michael R. Rancourt, Eduardo M. Barreda, Stephen P. Fraczek