Patents by Inventor Raymond Connolly

Raymond Connolly 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).

  • Printhead-integrated ink level sensor with central clearing resistor
    Patent number: 10532579
    Abstract: The present subject matter relates to printhead-integrated ink level sensor (PILS) system. In an example implementation, the PILS system includes a sense capacitor plate in a fluid sensing chamber to sense a level of fluid in the fluid sensing chamber. The fluid sensing chamber is in fluid communication with a fluid reservoir of the printhead to receive fluid from the fluid reservoir. The sense capacitor plate includes at least one slot. The PILS system further includes at least one central clearing resistor and at least one peripheral clearing resistor to clear the fluid sensing chamber of the fluid. The central clearing resistor is provided in the at least one slot of the sense capacitor plate. The at least one peripheral resistor is provided in the fluid sensing chamber surrounding the sense capacitor plate.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 14, 2020
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Boon Bing Ng, Patrick Leonard, Raymond Connolly
  • Print head sensing chamber circulation
    Patent number: 10449776
    Abstract: A print head has a fluid slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A circulation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the circulation passage.
    Type: Grant
    Filed: September 8, 2018
    Date of Patent: October 22, 2019
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Alexander Govyadinov, Adam L. Ghozeil, Boon Bing Ng, Patrick Leonard, Raymond Connolly
  • PRINT HEAD SENSING CHAMBER CIRCULATION
    Publication number: 20190001695
    Abstract: A print head has a fluid slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A circulation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the circulation passage.
    Type: Application
    Filed: September 8, 2018
    Publication date: January 3, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Alexander Govyadinov, Adam L. Ghozeil, Boon Bing Ng, Patrick Leonard, Raymond Connolly
  • PRINTHEAD-INTEGRATED INK LEVEL SENSOR WITH CENTRAL CLEARING RESISTOR
    Publication number: 20180354271
    Abstract: The present subject matter relates to printhead-integrated ink level sensor (PILS) system. In an example implementation, the PILS system includes a sense capacitor plate in a fluid sensing chamber to sense a level of fluid in the fluid sensing chamber. The fluid sensing chamber is in fluid communication with a fluid reservoir of the printhead to receive fluid from the fluid reservoir. The sense capacitor plate includes at least one slot. The PILS system further includes at least one central clearing resistor and at least one peripheral clearing resistor to clear the fluid sensing chamber of the fluid. The central clearing resistor is provided in the at least one slot of the sense capacitor plate. The at least one peripheral resistor is provided in the fluid sensing chamber surrounding the sense capacitor plate.
    Type: Application
    Filed: November 10, 2015
    Publication date: December 13, 2018
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Boon Bing Ng, Patrick Leonard, Raymond Connolly
  • Print head sensing chamber circulation
    Patent number: 10099484
    Abstract: A print head has an ink slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A recirculation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the recirculation passage.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: October 16, 2018
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Alexander Govyadinov, Adam L Ghozeil, Boon Bing Ng, Patrick Leonard, Raymond Connolly
  • PRINT HEAD SENSING CHAMBER CIRCULATION
    Publication number: 20170313093
    Abstract: A print head has an ink slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A recirculation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the recirculation passage.
    Type: Application
    Filed: October 30, 2014
    Publication date: November 2, 2017
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Alexander Govyadinov, Adam L Ghozeil, Boon Bing Ng, Patrick Leonard, Raymond Connolly