Patents by Inventor Chi Han Cheng

Chi Han Cheng 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: 20250207696
    Abstract: A pipeline structure includes a connection pipe and a flow controller. The connection pipe includes inflow and outflow passages and an accommodation part that is located therebetween and has upper and lower flow chambers in fluid communication with each other, first and second inlet channels and an outlet channel. The first inlet channel is in fluid communication with the inflow passage and the upper flow chamber, and is formed by a side wall standing at the inflow passage. The second inlet channel is in fluid communication with the inflow passage and the lower flow chamber. The outlet channel is in fluid communication with the lower flow chamber and the outflow passage. The flow controller enables or interrupts fluid communications between the upper and lower flow chambers and between the second inlet channel and the lower flow chamber.
    Type: Application
    Filed: December 21, 2023
    Publication date: June 26, 2025
    Applicant: YUAN MEI CORP.
    Inventor: CHI-HAN CHENG
  • Publication number: 20250043884
    Abstract: An anti-blockage pipeline structure includes a connection pipe and a flow controller. The connection pipe includes inflow and outflow passages and an accommodation part that is located therebetween and has upper and lower flow chambers in fluid communication with each other, first and second inlet channels and an outlet channel. The first inlet channel is in fluid communication with the inflow passage and the upper flow chamber, and has an opening size increasing from the inflow passage. The second inlet channel is in fluid communication with the inflow passage and the lower flow chamber, and has an opening size greater than that of the first inlet channel. The outlet channel is in fluid communication with the lower flow chamber and the outflow passage. The flow controller enables or interrupts fluid communications between the upper and lower flow chambers and between the second inlet channel and the lower flow chamber.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 6, 2025
    Applicant: YUAN MEI CORP.
    Inventor: Chi-Han CHENG
  • Patent number: 12083547
    Abstract: A sprinkler includes a base, a tubular body disposed on the base, at least one control assembly mounted to the tubular body, and at least one nozzle set which has a plurality of nozzles aligned in a row and is disposed on the tubular body. The control assembly includes at least one push portion mounted with at least one connecting member which is pivotally connected to at least one guiding member with a plurality of sliding slots. The sliding slots are inserted by the nozzles for allowing the nozzles to be moved back and forth selectively. By movement of the push portion in an axial direction of the tubular body caused by manual operation, the guiding member is also moved radially to drive at least one of the nozzles to incline in turn.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: September 10, 2024
    Assignee: YUAN MEI CORP.
    Inventor: Chi-Han Cheng
  • Patent number: 11919017
    Abstract: A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.
    Type: Grant
    Filed: March 10, 2023
    Date of Patent: March 5, 2024
    Assignee: YUAN MEI CORP.
    Inventor: Chi-Han Cheng
  • Patent number: 11813628
    Abstract: A water spray gun for control of an outflow of water and adjustment of the amount of the outflow is revealed. The water spray gun includes a handle portion, a pipe portion connected to the handle portion and used for spraying water, and a control device arranged at the position where the pipe portion meets the handle portion. The control device comprises a press part and a rotary control member. The amount of the water outflow is controlled by the rotary control member. The amount of the outflow sprayed out from the pipe portion at respective stages is continuously controlled and regulated by the control device.
    Type: Grant
    Filed: December 11, 2022
    Date of Patent: November 14, 2023
    Assignee: YUAN-MEI CORP.
    Inventor: Chi-Han Cheng
  • Publication number: 20230201854
    Abstract: A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.
    Type: Application
    Filed: March 10, 2023
    Publication date: June 29, 2023
    Inventor: CHI-HAN CHENG
  • Patent number: 11673154
    Abstract: An oscillating range adjusting module with modular design for being mounted into a sprinkler is revealed. The oscillating range adjusting module which includes a first adjusting unit and a second adjusting unit is located between a water-in control module and an oscillation driving module. During assembly, the first adjusting unit is fitted on an inlet tube of a water-in control module. After an O-ring being connected to the first adjusting unit, the second adjusting unit is mounted on the inlet tube and connected to the first adjusting unit by at least one fastener of the second adjusting unit engaged with at least one connection surface of the first adjusting unit. Lastly a water inlet of the oscillation driving module is connected to the second adjusting unit. Thereby, a modular assembly of the oscillating range adjusting module between the oscillation driving module and the water-in control module is achieved.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: June 13, 2023
    Assignee: YUAN-MEI CORP.
    Inventor: Chi-Han Cheng
  • Patent number: 11642684
    Abstract: A water spray gun for control of an outflow of water and adjustment of the amount of the outflow is revealed. The water spray gun includes a handle portion, a pipe portion connected to the handle portion and used for spraying water, and a control device arranged at the position where the pipe portion meets the handle portion. The control device comprises a press part and a rotary control member. The amount of the water outflow is controlled by the rotary control member. The amount of the outflow sprayed out from the pipe portion at respective stages is continuously controlled and regulated by the control device.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 9, 2023
    Assignee: YUAN-MEI CORP.
    Inventor: Chi-Han Cheng
  • Publication number: 20230116308
    Abstract: A water spray gun for control of an outflow of water and adjustment of the amount of the outflow is revealed. The water spray gun includes a handle portion, a pipe portion connected to the handle portion and used for spraying water, and a control device arranged at the position where the pipe portion meets the handle portion. The control device comprises a press part and a rotary control member. The amount of the water outflow is controlled by the rotary control member. The amount of the outflow sprayed out from the pipe portion at respective stages is continuously controlled and regulated by the control device.
    Type: Application
    Filed: December 11, 2022
    Publication date: April 13, 2023
    Inventor: CHI-HAN CHENG
  • Patent number: 11623235
    Abstract: A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: April 11, 2023
    Inventor: Chi-Han Cheng
  • Publication number: 20230008209
    Abstract: A sprinkler includes a base, a tubular body disposed on the base, at least one control assembly mounted to the tubular body, and at least one nozzle set which has a plurality of nozzles aligned in a row and is disposed on the tubular body. The control assembly includes at least one push portion mounted with at least one connecting member which is pivotally connected to at least one guiding member with a plurality of sliding slots. The sliding slots are inserted by the nozzles for allowing the nozzles to be moved back and forth selectively. By movement of the push portion in an axial direction of the tubular body caused by manual operation, the guiding member is also moved radially to drive at least one of the nozzles to incline in turn.
    Type: Application
    Filed: September 9, 2021
    Publication date: January 12, 2023
    Inventor: Chi-Han Cheng
  • Publication number: 20210387219
    Abstract: A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.
    Type: Application
    Filed: June 10, 2020
    Publication date: December 16, 2021
    Inventor: CHI-HAN CHENG
  • Publication number: 20210362176
    Abstract: A water spray gun for control of an outflow of water and adjustment of the amount of the outflow is revealed. The water spray gun includes a handle portion, a pipe portion connected to the handle portion and used for spraying water, and a control device arranged at the position where the pipe portion meets the handle portion. The control device comprises a press part and a rotary control member. The amount of the water outflow is controlled by the rotary control member. The amount of the outflow sprayed out from the pipe portion at respective stages is continuously controlled and regulated by the control device.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 25, 2021
    Inventor: CHI-HAN CHENG
  • Publication number: 20210260610
    Abstract: An oscillating range adjusting module with modular design for being mounted into a sprinkler is revealed. The oscillating range adjusting module which includes a first adjusting unit and a second adjusting unit is located between a water-in control module and an oscillation driving module. During assembly, the first adjusting unit is fitted on an inlet tube of a water-in control module. After an O-ring being connected to the first adjusting unit, the second adjusting unit is mounted on the inlet tube and connected to the first adjusting unit by at least one fastener of the second adjusting unit engaged with at least one connection surface of the first adjusting unit. Lastly a water inlet of the oscillation driving module is connected to the second adjusting unit. Thereby, a modular assembly of the oscillating range adjusting module between the oscillation driving module and the water-in control module is achieved.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 26, 2021
    Inventor: CHI-HAN CHENG
  • Patent number: D920473
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: May 25, 2021
    Assignee: YUAN-MEI CORP.
    Inventor: Chi-Han Cheng
  • Patent number: D932597
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: October 5, 2021
    Assignee: YUAN MEI CORP.
    Inventor: Chi Han Cheng
  • Patent number: D997298
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: August 29, 2023
    Assignee: YUAN MEI CORP.
    Inventor: Chi-Han Cheng
  • Patent number: D997300
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: August 29, 2023
    Assignee: YUAN MEI CORP.
    Inventor: Chi-Han Cheng
  • Patent number: D1000584
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: October 3, 2023
    Assignee: YUAN MEI CORP.
    Inventor: Chi Han Cheng
  • Patent number: D1077986
    Type: Grant
    Filed: January 30, 2024
    Date of Patent: June 3, 2025
    Assignee: YUAN MEI CORP.
    Inventor: Chi-Han Cheng