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).
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Patent number: 10795324Abstract: 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: GrantFiled: January 7, 2016Date of Patent: October 6, 2020Assignee: Ecolab USA Inc.Inventors: Christopher D. Diller, Louis M. Holzman, Ronald B. Howes, Stephen X. Skaff, Quang Van Dao, Christopher A. Buck
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Publication number: 20160223996Abstract: 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: ApplicationFiled: January 7, 2016Publication date: August 4, 2016Inventors: Christopher D. Diller, Louis M. Holzman, Ronald B. Howes, JR., Stephen X. Skaff, Quang Van Dao, Christopher A. Buck
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Patent number: 9261866Abstract: 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: GrantFiled: May 18, 2012Date of Patent: February 16, 2016Assignee: Ecolab USA Inc.Inventors: Chris D. Diller, Louis M. Holzman, Ronald B. Howes, Jr., Stephen X. Skaff, Quang Van Dao, Christopher A. Buck
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Patent number: 8742883Abstract: 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: GrantFiled: August 25, 2010Date of Patent: June 3, 2014Assignee: Ecolab USA Inc.Inventors: John Thomas Pelkey, Robert Eugene May, Ryan Jacob Urban, Quang Van Dao
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Publication number: 20120296447Abstract: 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: ApplicationFiled: May 18, 2012Publication date: November 22, 2012Applicant: ECOLAB USA INC.Inventors: CHRIS D. DILLER, LOUIS M. HOLZMAN, RONALD B. HOWES, JR., STEPHEN X. SKAFF, QUANG VAN DAO, CHRISTOPHER A. BUCK
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Patent number: 8187540Abstract: 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: GrantFiled: July 21, 2011Date of Patent: May 29, 2012Assignee: Ecolab Inc.Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao
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Publication number: 20120047988Abstract: 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: ApplicationFiled: August 25, 2010Publication date: March 1, 2012Applicant: ECOLAB USA INCInventors: RICHARD JONDALL MEHUS, JOHN THOMAS PELKEY, RYAN JACOB URBAN, QUANG VAN DAO, SCOTT RUSSELL LIMBACK
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Publication number: 20120049999Abstract: 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: ApplicationFiled: August 25, 2010Publication date: March 1, 2012Applicant: ECOLAB USA INCInventors: JOHN THOMAS PELKEY, ROBERT EUGENE MAY, RYAN JACOB URBAN, QUANG VAN DAO
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Publication number: 20110320133Abstract: 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: ApplicationFiled: July 21, 2011Publication date: December 29, 2011Applicant: Ecolab Inc.Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao
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Patent number: 8012421Abstract: 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: GrantFiled: June 24, 2003Date of Patent: September 6, 2011Assignee: Ecolab Inc.Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao
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Publication number: 20040265174Abstract: 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: ApplicationFiled: June 24, 2003Publication date: December 30, 2004Inventors: Richard J. Mehus, Charles A. Hodge, Quang Van Dao