Patents by Inventor Chong Wang Kwak

Chong Wang Kwak 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).

  • Publication number: 20240151563
    Abstract: Some embodiments provide an irrigation flow sensor system, comprising: a housing forming a fluid channel to cooperate with conduits of an irrigation system; a paddle wheel device with at least a first blade of a set of the blades comprises a magnetic element; the paddle wheel device is positioned with at least a portion of the blades extends into the fluid channel as the blades rotate about an axis; a magnetic sensor proximate a pathway of the magnetic element as it rotates configured to provide a sensor output every time the magnetic element passes the magnetic sensor; a switch coupled to the magnetic sensor and a current loop, wherein the switch in an activate state is configured to temporarily change the current in the current loop in response to the sensor output, with a rate of change in current corresponding to a flow rate of the fluid flowing.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Steven D. Geerligs, Russell Churchill, Randy R. Montgomery, Chong Wang Kwak, Joseph G. Porrazzo, Jr., Michael A. Landis, Angel Reyes Archundia
  • Patent number: 11874149
    Abstract: Some embodiments provide an irrigation flow sensor system, comprising: a housing forming a fluid channel to cooperate with conduits of an irrigation system; a paddle wheel device with at least a first blade of a set of the blades comprises a magnetic element; the paddle wheel device is positioned with at least a portion of the blades extends into the fluid channel as the blades rotate about an axis; a magnetic sensor proximate a pathway of the magnetic element as it rotates configured to provide a sensor output every time the magnetic element passes the magnetic sensor; a switch coupled to the magnetic sensor and a current loop, wherein the switch in an activate state is configured to temporarily change the current in the current loop in response to the sensor output, with a rate of change in current corresponding to a flow rate of the fluid flowing.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: January 16, 2024
    Assignee: Rain Bird Corporation
    Inventors: Steven D. Geerligs, Russell Churchill, Randy R. Montgomery, Chong Wang Kwak, Joseph G. Porrazzo, Jr., Michael A. Landis, Angel Reyes Archundia
  • Patent number: 11277973
    Abstract: Several embodiments provide cycle and soak irrigation control units, comprising: a housing; a plurality of pairs of actuation line connectors comprising input connectors to couple with output actuation lines of a separate irrigation controller, and output connectors to couple with actuatable devices; a plurality of electrical pathways each coupling a respective input connector to a corresponding output connector and allowing an activation signal to be passed; at least one switch configured to selectively allow or interrupt activation signals to pass to a corresponding output connector; and a timing control circuit controlling the switch, based on an application of an activation signal on an input connector, a duration of a series of cycle-on timings during which the activation signal is emitted from the output connector to activate an actuatable device and soak-off timings during which the activation signal is prevented from being emitted deactivating the actuatable device.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: March 22, 2022
    Assignee: Rain Bird Corporation
    Inventors: Randy R. Montgomery, John E. Price, Chong Wang Kwak, Samuel C. Walker, David Charles Belongia
  • Publication number: 20210333135
    Abstract: Some embodiments provide an irrigation flow sensor system, comprising: a housing forming a fluid channel to cooperate with conduits of an irrigation system; a paddle wheel device with at least a first blade of a set of the blades comprises a magnetic element; the paddle wheel device is positioned with at least a portion of the blades extends into the fluid channel as the blades rotate about an axis; a magnetic sensor proximate a pathway of the magnetic element as it rotates configured to provide a sensor output every time the magnetic element passes the magnetic sensor; a switch coupled to the magnetic sensor and a current loop, wherein the switch in an activate state is configured to temporarily change the current in the current loop in response to the sensor output, with a rate of change in current corresponding to a flow rate of the fluid flowing.
    Type: Application
    Filed: April 27, 2021
    Publication date: October 28, 2021
    Inventors: Steven D. Geerligs, Russell Churchill, Randy R. Montgomery, Chong Wang Kwak, Joseph G. Porrazzo, JR., Michael A. Landis
  • Patent number: 10980120
    Abstract: There is provided a compact printed circuit board. The compact printed circuit board has a flexible rigid printed circuit board connector with a rigid printed circuit board attached at each end of the connector. The printed circuit board can then be folded into a compact, overlying configuration. As such, the compact printed circuit board has a smaller footprint than a standard rectangular printed circuit board, while maintaining the same or having increased micro-electronics and functionality. The compact configuration allows the folded printed circuit board to be integrated with a solenoid used in the control of a valve or sprinkler of an irrigation system.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: April 13, 2021
    Assignee: Rain Bird Corporation
    Inventors: Chong Wang Kwak, John James Wlassich
  • Patent number: 10871242
    Abstract: A solenoid is provided having an improved connection arrangement. The solenoid includes external wires that are coupled to internal solenoid components via terminals. Further, a sealed solenoid is provided having a housing overmolded onto a solenoid subassembly. External wires can be coupled to the solenoid after overmolding. The solenoid may also include a cavity for receiving at least one of electrical component. The solenoid may also include a powdered metal core.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 22, 2020
    Assignee: Rain Bird Corporation
    Inventors: Kevin James Markley, Troy Lynn Roney, John James Wlassich, Randy Ray Montgomery, Chong Wang Kwak
  • Patent number: 10801642
    Abstract: A solenoid is provided having an improved connection arrangement. The solenoid includes external wires that are coupled to internal solenoid components via terminals. Further, a sealed solenoid is provided having a housing overmolded onto a solenoid subassembly. External wires can be coupled to the solenoid after overmolding. The solenoid may also include a cavity for receiving at least one of electrical component. The solenoid may also include a powdered metal core.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 13, 2020
    Assignee: Rain Bird Corporation
    Inventors: Kevin James Markley, Troy Lynn Roney, John James Wlassich, Randy Ray Montgomery, Chong Wang Kwak
  • Publication number: 20200037509
    Abstract: Several embodiments provide cycle and soak irrigation control units, comprising: a housing; a plurality of pairs of actuation line connectors comprising input connectors to couple with output actuation lines of a separate irrigation controller, and output connectors to couple with actuatable devices; a plurality of electrical pathways each coupling a respective input connector to a corresponding output connector and allowing an activation signal to be passed; at least one switch configured to selectively allow or interrupt activation signals to pass to a corresponding output connector; and a timing control circuit controlling the switch, based on an application of an activation signal on an input connector, a duration of a series of cycle-on timings during which the activation signal is emitted from the output connector to activate an actuatable device and soak-off timings during which the activation signal is prevented from being emitted deactivating the actuatable device.
    Type: Application
    Filed: October 1, 2019
    Publication date: February 6, 2020
    Inventors: Randy R. Montgomery, John E. Price, Chong Wang Kwak, Samuel C. Walker, David Charles Belongia
  • Patent number: 10462977
    Abstract: Several embodiments provide cycle and soak irrigation control units, comprising: a housing; a plurality of pairs of actuation line connectors comprising input connectors to couple with output actuation lines of a separate irrigation controller, and output connectors to couple with actuatable devices; a plurality of electrical pathways each coupling a respective input connector to a corresponding output connector and allowing an activation signal to be passed; at least one switch configured to selectively allow or interrupt activation signals to pass to a corresponding output connector; and a timing control circuit controlling the switch, based on an application of an activation signal on an input connector, a duration of a series of cycle-on timings during which the activation signal is emitted from the output connector to activate an actuatable device and soak-off timings during which the activation signal is prevented from being emitted deactivating the actuatable device.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 5, 2019
    Assignee: Rain Bird Corporation
    Inventors: Randy R. Montgomery, John E. Price, Chong Wang Kwak, Samuel C. Walker, David Charles Belongia
  • Publication number: 20190297797
    Abstract: In some embodiments, systems and methods provide a water flow controlled irrigation system, comprising: an irrigation water flow sensor system comprising: a housing comprising a pipe nesting surface configured to be positioned adjacent with an irrigation pipe; an acoustic sensor secured with the housing proximate the pipe nesting surface; a sensor control circuit configured to receive acoustic data, and identify when a change in detected acoustic data is consistent with a first predefined acoustic pattern; and a flow indicator output communicatively coupled with the sensor control circuit and configured to further coupled with a separate irrigation controller that is configured to control irrigation valves of the irrigation system in accordance with an irrigation schedule, and wherein the sensor control circuit is configured to activate a first flow notification from the flow indicator output when the change in detected acoustic data is consistent with the first predefined acoustic pattern.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 3, 2019
    Inventors: Harvey J. Nickerson, Steven W. Weiler, Chong Wang Kwak, Steven D. Geerligs, Anderson I. Micu
  • Publication number: 20190082629
    Abstract: Several embodiments provide cycle and soak irrigation control units, comprising: a housing; a plurality of pairs of actuation line connectors comprising input connectors to couple with output actuation lines of a separate irrigation controller, and output connectors to couple with actuatable devices; a plurality of electrical pathways each coupling a respective input connector to a corresponding output connector and allowing an activation signal to be passed; at least one switch configured to selectively allow or interrupt activation signals to pass to a corresponding output connector; and a timing control circuit controlling the switch, based on an application of an activation signal on an input connector, a duration of a series of cycle-on timings during which the activation signal is emitted from the output connector to activate an actuatable device and soak-off timings during which the activation signal is prevented from being emitted deactivating the actuatable device.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 21, 2019
    Inventors: Randy R. Montgomery, John E. Price, Chong Wang Kwak, Samuel C. Walker, David Charles Belongia
  • Publication number: 20180368261
    Abstract: There is provided a compact printed circuit board. The compact printed circuit board has a flexible rigid printed circuit board connector with a rigid printed circuit board attached at each end of the connector. The printed circuit board can then be folded into a compact, overlying configuration. As such, the compact printed circuit board has a smaller footprint than a standard rectangular printed circuit board, while maintaining the same or having increased micro-electronics and functionality. The compact configuration allows the folded printed circuit board to be integrated with a solenoid used in the control of a valve or sprinkler of an irrigation system.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Inventors: Chong Wang Kwak, John James Wlassich
  • Publication number: 20180279566
    Abstract: There is provided an irrigation system with a plurality of solenoid valves. The solenoid valves each include a wireless transceiver that communicates with one another to form a mesh network. The solenoids can include sensors that gather data to be communicated over the wireless mesh network to a controller. The solenoids can also include a signal generator to activate passive sensors remote from the solenoid to collect data and transmit the data to the solenoid for communication over the wireless mesh network to a controller. The data can be related to environmental conditions or security about the irrigation system.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventors: John James Wlassich, Randy Ray Montgomery, Chong Wang Kwak
  • Publication number: 20170370495
    Abstract: A solenoid is provided having an improved connection arrangement. The solenoid includes external wires that are coupled to internal solenoid components via terminals. Further, a sealed solenoid is provided having a housing overmolded onto a solenoid subassembly. External wires can be coupled to the solenoid after overmolding. The solenoid may also include a cavity for receiving at least one of electrical component. The solenoid may also include a powdered metal core.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 28, 2017
    Inventors: Kevin James Markley, Troy Lynn Roney, John James Wlassich, Randy Ray Montgomery, Chong Wang Kwak