Patents by Inventor Charles P. Coleman

Charles P. Coleman 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: 6996442
    Abstract: An impending fault of a component operated within a closed-loop control system can be detected. The close-loop control system is disabled. An actuator of the closed-loop control system is operated at one or more test values. A sensor reading of the actuator is taken while that actuator is operated at the one or more test values. A warning is generated if an impending fault condition is detected. An impending fault condition may be detected if the component operates at a value exceeding a maximum defined operating value, if the component operates at a value below a minimum defined operating value, or if an operating range that is narrower than a defined full operating range for the component is detected.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: February 7, 2006
    Assignee: Xerox Corporation
    Inventors: Debbie S. Wickham, Mark A. Scheuer, Charles P. Coleman, Ashok V. Godambe
  • Patent number: 6892317
    Abstract: By using monitoring data, feedback data, and pooling of failure data from a plurality of electronic devices, real-time failure prediction and diagnoses of electronic systems operating in a network environment can be achieved. First, the diagnostic system requests data on the state of a machine and/or its components and collections thereof as part of the machine's normal operation. Secondly, real-time processing of the data either at the machine site or elsewhere in the distributed network allows for predicting or diagnosing system failures. Having determined and/or predicted a system failure, a communication to one or more remote observers in the network allows the remote observers to view the diagnostic information and/or required action to repair the failure.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: May 10, 2005
    Assignee: Xerox Corporation
    Inventors: Meera Sampath, Charles P. Coleman, Tracy E. Thieret, Ronald M. Rockwell, Charles B. Duke
  • Publication number: 20040139112
    Abstract: An impending fault of a component operated within a closed-loop control system can be detected. The close-loop control system is disabled. An actuator of the closed-loop control system is operated at one or more test values. A sensor reading of the actuator is taken while that actuator is operated at the one or more test values. A warning is generated if an impending fault condition is detected. An impending fault condition may be detected if the component operates at a value exceeding a maximum defined operating value, if the component operates at a value below a minimum defined operating value, or if an operating range that is narrower than a defined full operating range for the component is detected.
    Type: Application
    Filed: January 15, 2003
    Publication date: July 15, 2004
    Applicant: XEROX CORPORATION
    Inventors: Debbie S. Wickham, Mark A. Scheuer, Charles P. Coleman, Ashok V. Godambe
  • Patent number: 6318841
    Abstract: The silicon fluid ejector of the present invention includes an electrostatically actuated micromachined positive displacement mechanism consisting of a piston, piston containment structure, piston retraction mechanism and an ejection orifice. These features provide for very low cost of production, high reliability and “on demand” drop size modulation. The fluid ejector mechanism can be easily produced via monolithic batch fabrication based on the common production technique of surface micromachining.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: November 20, 2001
    Assignee: Xerox Corporation
    Inventors: Charles P. Coleman, Arthur M. Gooray, George J. Roller, Kathleen A. Feinberg
  • Patent number: 6127198
    Abstract: The silicon fluid ejector of the present invention includes an electrostatically actuated micromachined positive displacement mechanism consisting of a piston, piston containment structure, piston retraction mechanism and an ejection orifice. These features provide for very low cost of production, high reliability and "on demand" drop size, modulation. The fluid ejector mechanism can be easily produced via monolithic batch fabrication based on the common production technique of surface micromachining.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: October 3, 2000
    Assignee: Xerox Corporation
    Inventors: Charles P. Coleman, Arthur M. Gooray, George J. Roller, Kathleen A. Feinberg
  • Patent number: 5546732
    Abstract: A packaging system indexes a pouch web, packaging web, and base web for forming a bag with an attached pouch enclosing an article such as literature or a merchandising sample. The preferred apparatus attaches the pouch web to the packaging web to form a pocket that opens adjacent respective edges while the base web remains unattached. An article is dispensed into the pocket with each indexing movement of the webs and the pocket then sealed inboard of the bag section edges to form a pouch enclosing the article. A bag handling mechanism holds and conveys the bags for accumulation into a bundle.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: August 20, 1996
    Assignee: Dennis Garberg & Associates, Inc.
    Inventors: Charles P. Coleman, Dennis D. Garberg, Thomas J. Butler