Patents by Inventor Alan Goetzelman

Alan Goetzelman 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).

  • Spray dampening system having alternate application control
    Patent number: 4815375
    Abstract: A spray dampening system for use in a printing operation including solenoid-operated spray dampening fluid nozzles operated at particular frequencies in relation to the speed of the press. The nozzles are operated in pairs, such that only one of the nozzles of each pair is activated at any one time. The frequency of alternation of activation of the nozzles of each pair is dependent upon the speed of the printing operation.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: March 28, 1989
    Assignee: Ryco Graphic Manufacturing, Inc.
    Inventors: Thomas G. Switall, Michael Schaefges, Alan Goetzelman
  • Variable frequency pulsed spray dampening system
    Patent number: 4649818
    Abstract: A spray dampening control system for use in a planographic printing operation includes solenoid-operated spray dampening fluid nozzles operated at a frequency in accordance with the speed of the press. The press speed is measured and converted in a nonlinear relationship into a frequency applied to the solenoid-operated spray nozzles. Individual nozzle control circuits are provided for further controlling the nozzle pulse characteristics by varying the width of the frequency pulses independently of the frequency. Auxiliary frequency generators are provided for substitution of the primary multifrequency generator, and isolation means between circuit stages are provided for ease of replacement and maintenance.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: March 17, 1987
    Assignee: Ryco Graphic Manufacturing, Inc.
    Inventors: Thomas G. Switall, Michael Schaefges, Alan Goetzelman