Patents by Inventor Quang Van Dao

Quang Van Dao 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: 10795324
    Abstract: A controlling and monitoring control application associated with one or more work operations of one or more utility devices is disclosed. The controller is programmed for controlling one or more external work operations associated with one or more utility devices. An I/O board is connected in communication with the primary controller having a module with a plurality of device-specific control applications associated with one or more device-specific work operations. The housing of the controller includes one or more cable access points for plugging a cable into the controller. The cable access points are sealed to prevent water from entering into the housing. A mounting bracket assembly provides flexibility for mounting the controller at various orientations and/or positions. The controller also includes a DC control circuit for controlling backlight luminance over the entire dimming ratio.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: October 6, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Christopher D. Diller, Louis M. Holzman, Ronald B. Howes, Stephen X. Skaff, Quang Van Dao, Christopher A. Buck
  • Publication number: 20160223996
    Abstract: A controlling and monitoring control application associated with one or more work operations of one or more utility devices is disclosed. The controller is programmed for controlling one or more external work operations associated with one or more utility devices. An I/O board is connected in communication with the primary controller having a module with a plurality of device-specific control applications associated with one or more device-specific work operations. The housing of the controller includes one or more cable access points for plugging a cable into the controller. The cable access points are sealed to prevent water from entering into the housing. A mounting bracket assembly provides flexibility for mounting the controller at various orientations and/or positions. The controller also includes a DC control circuit for controlling backlight luminance over the entire dimming ratio.
    Type: Application
    Filed: January 7, 2016
    Publication date: August 4, 2016
    Inventors: Christopher D. Diller, Louis M. Holzman, Ronald B. Howes, JR., Stephen X. Skaff, Quang Van Dao, Christopher A. Buck
  • Patent number: 9261866
    Abstract: A controlling and monitoring control application associated with one or more work operations of one or more utility devices is disclosed. The controller is programmed for controlling one or more external work operations associated with one or more utility devices. An I/O board is connected in communication with the primary controller having a module with a plurality of device-specific control applications associated with one or more device-specific work operations. The housing of the controller includes one or more cable access points for plugging a cable into the controller. The cable access points are sealed to prevent water from entering into the housing. A mounting bracket assembly provides flexibility for mounting the controller at various orientations and/or positions. The controller also includes a DC control circuit for controlling backlight luminance over the entire dimming ratio.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: February 16, 2016
    Assignee: Ecolab USA Inc.
    Inventors: Chris D. Diller, Louis M. Holzman, Ronald B. Howes, Jr., Stephen X. Skaff, Quang Van Dao, Christopher A. Buck
  • Patent number: 8742883
    Abstract: A method and system provides for monitoring, troubleshooting and acquiring diagnostics information from an aspirating dispensing system (10). The dispensing system (10) uses an aspirator (12) with a plurality of liquid inlet ports and a flow meter (30) connected in liquid communication with at least one of the liquid inlet ports and a liquid source. The system monitors, troubleshoots and acquires diagnostics information from one or more components of the dispensing system by monitoring operation of the flow meter (30).
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: June 3, 2014
    Assignee: Ecolab USA Inc.
    Inventors: John Thomas Pelkey, Robert Eugene May, Ryan Jacob Urban, Quang Van Dao
  • Publication number: 20120296447
    Abstract: A controlling and monitoring control application associated with one or more work operations of one or more utility devices is disclosed. The controller is programmed for controlling one or more external work operations associated with one or more utility devices. An I/O board is connected in communication with the primary controller having a module with a plurality of device-specific control applications associated with one or more device-specific work operations. The housing of the controller includes one or more cable access points for plugging a cable into the controller. The cable access points are sealed to prevent water from entering into the housing. A mounting bracket assembly provides flexibility for mounting the controller at various orientations and/or positions. The controller also includes a DC control circuit for controlling backlight luminance over the entire dimming ratio.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Applicant: ECOLAB USA INC.
    Inventors: CHRIS D. DILLER, LOUIS M. HOLZMAN, RONALD B. HOWES, JR., STEPHEN X. SKAFF, QUANG VAN DAO, CHRISTOPHER A. BUCK
  • Patent number: 8187540
    Abstract: A concentration monitor for monitoring a concentration of a plurality of use solutions, each of the plurality of use solutions being, at least, a concentrate in a diluent, each of the plurality of use solutions having a resistivity which varies as a function of both temperature and an amount of the concentrate contained in a given amount of the diluent. A resistivity probe is adapted for use with at least one of the plurality of use solutions for taking a measurement related to the resistivity of the at least one of the plurality of use solutions. A temperature sensor is adapted for use with the at least one of the plurality of use solutions for taking a measurement related to the temperature of the at least one of the plurality of use solutions.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: May 29, 2012
    Assignee: Ecolab Inc.
    Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao
  • Publication number: 20120047988
    Abstract: A method, apparatus and system provides for accurately measuring and calibrating liquid products dispensed from a dispenser. A liquid diluent enters an aspirator assembly (12). A liquid product is drawn from a product container through a flow meter (36) into the aspirator assembly (12), wherein liquid product and diluent are mixed to dispense at the outlet of the aspirator (14). The flow meter (36) monitors the amount of liquid product drawn into and dispensed from the aspirator (14).
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Applicant: ECOLAB USA INC
    Inventors: RICHARD JONDALL MEHUS, JOHN THOMAS PELKEY, RYAN JACOB URBAN, QUANG VAN DAO, SCOTT RUSSELL LIMBACK
  • Publication number: 20120049999
    Abstract: A method and system provides for monitoring, troubleshooting and acquiring diagnostics information from an aspirating dispensing system (10). The dispensing system (10) uses an aspirator (12) with a plurality of liquid inlet ports and a flow meter (30) connected in liquid communication with at least one of the liquid inlet ports and a liquid source. The system monitors, troubleshoots and acquires diagnostics information from one or more components of the dispensing system by monitoring operation of the flow meter (30).
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Applicant: ECOLAB USA INC
    Inventors: JOHN THOMAS PELKEY, ROBERT EUGENE MAY, RYAN JACOB URBAN, QUANG VAN DAO
  • Publication number: 20110320133
    Abstract: A concentration monitor for monitoring a concentration of a plurality of use solutions, each of the plurality of use solutions being, at least, a concentrate in a diluent, each of the plurality of use solutions having a resistivity which varies as a function of both temperature and an amount of the concentrate contained in a given amount of the diluent. A resistivity probe is adapted for use with at least one of the plurality of use solutions for taking a measurement related to the resistivity of the at least one of the plurality of use solutions. A temperature sensor is adapted for use with the at least one of the plurality of use solutions for taking a measurement related to the temperature of the at least one of the plurality of use solutions.
    Type: Application
    Filed: July 21, 2011
    Publication date: December 29, 2011
    Applicant: Ecolab Inc.
    Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao
  • Patent number: 8012421
    Abstract: A concentration monitor for monitoring a concentration of a plurality of use solutions, each of the plurality of use solutions being, at least, a concentrate in a diluent, each of the plurality of use solutions having a resistivity which varies as a function of both temperature and an amount of the concentrate contained in a given amount of the diluent. A resistivity probe is adapted for use with at least one of the plurality of use solutions for taking a measurement related to the resistivity of the at least one of the plurality of use solutions. A temperature sensor is adapted for use with the at least one of the plurality of use solutions for taking a measurement related to the temperature of the at least one of the plurality of use solutions.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: September 6, 2011
    Assignee: Ecolab Inc.
    Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao
  • Publication number: 20040265174
    Abstract: A concentration monitor for monitoring a concentration of a plurality of use solutions, each of the plurality of use solutions being, at least, a concentrate in a diluent, each of the plurality of use solutions having a resistivity which varies as a function of both temperature and an amount of the concentrate contained in a given amount of the diluent. A resistivity probe is adapted for use with at least one of the plurality of use solutions for taking a measurement related to the resistivity of the at least one of the plurality of use solutions. A temperature sensor is adapted for use with the at least one of the plurality of use solutions for taking a measurement related to the temperature of the at least one of the plurality of use solutions.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 30, 2004
    Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao