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).

  • Patent number: 10599121
    Abstract: An irrigation controller is revealed. The irrigation controller includes a user interface presenting information to users, easily-operated by buttons and allowing users to program irrigation related information directly. The user interface is composed of a round display, a plurality of program keys, and a selective key. An indicator and programmable information zones are shown on the round display. There are at least six programmable information zones. The information zone is selected by a single selective key. The indicator is moved in one direction in a circular path.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: March 24, 2020
    Assignee: YUAN-MEI CORP.
    Inventors: King-Yuan Wang, Chi-Han Cheng
  • Patent number: 10464078
    Abstract: A sprinkler structure contains: an accommodation tube, multiple water outflow zones, multiple grooved partitions, multiple first water gathering zones, and multiple second water gathering zones. Each first water gathering zone has a first inlet, and each second water gathering zone has a second inlet, the accommodation tube includes multiple first guide orifices and multiple second guide orifices. Each first guide orifice communicates with the accommodation tube, and each second guide orifice communicates with the accommodation tube, hence a control bar is rotatably connected and horizontally moves in each first guide orifice and each second guide orifice. The control bar further includes an inflow chamber and a receiving portion for housing a stop element, such that the stop element abuts against each first water gathering zone and each second water gathering zone. The control bar further includes two seal rings, and the accommodation tube further includes an elongated lid.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: November 5, 2019
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Publication number: 20190299226
    Abstract: A control structure capable of adjusting water volume and controlling water supply contains: a body, a fixer, a valve stem, an adjuster, and a controller. The body includes a water outflow segment for connecting with a watering tool, an accommodation groove for accommodating the fixer and the valve stem. The fixer includes a flexible retaining rib, and the valve stem includes an inlet communicating with the water outflow segment, a fixing rib, an opening communicating with the inlet, and a guiding column. The guiding column has a seal ring. The fixing rib retains with the flexible retaining rib so as to limit a rotation of the adjuster along the body. The adjuster includes a threaded orifice screwing with a screwing section of the controller, an inflow aperture fitting with the guiding column, and a shoulder formed beside the inflow aperture. The controller is coupled with a water supply pipe.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 3, 2019
    Applicant: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Publication number: 20190240681
    Abstract: A sprinkler structure contains: an accommodation tube, multiple water outflow zones, multiple grooved partitions, multiple first water gathering zones, and multiple second water gathering zones. Each first water gathering zone has a first inlet, and each second water gathering zone has a second inlet, the accommodation tube includes multiple first guide orifices and multiple second guide orifices. Each first guide orifice communicates with the accommodation tube, and each second guide orifice communicates with the accommodation tube, hence a control bar is rotatably connected and horizontally moves in each first guide orifice and each second guide orifice. The control bar further includes an inflow chamber and a receiving portion for housing a stop element, such that the stop element abuts against each first water gathering zone and each second water gathering zone. The control bar further includes two seal rings, and the accommodation tube further includes an elongated lid.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 8, 2019
    Applicant: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: 10232385
    Abstract: A single or dual sided direction-controllable sprinkler comprises two rotatable trigger portions slidably disposed on a main body. When one trigger portion is limited by a fastener, the two trigger portions have the same rotational position, and when the one trigger portion is not limited by the fastener, the rotational positions of the two trigger portions are controlled independently. The fastener is selectively connected to allow the user to selectively control one of the trigger portions or both of the trigger portions together so that various water sprinkling modes are available.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: March 19, 2019
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Publication number: 20180339302
    Abstract: A single or dual sided direction-controllable sprinkler comprises two rotatable trigger portions slidably disposed on a main body. When one trigger portion is limited by a fastener, the two trigger portions have the same rotational position, and when the one trigger portion is not limited by the fastener, the rotational positions of the two trigger portions are controlled independently. The fastener is selectively connected to allow the user to selectively control one of the trigger portions or both of the trigger portions together so that various water sprinkling modes are available.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 29, 2018
    Applicant: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D769742
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: October 25, 2016
    Assignee: Yuan Mei Corp.
    Inventors: Chi-Han Cheng, Richard K. Boyle
  • Patent number: D770918
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: November 8, 2016
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D772083
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: November 22, 2016
    Assignee: Yuan Mei Corp.
    Inventors: Chi-Han Cheng, Richard K. Boyle
  • Patent number: D792944
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 25, 2017
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D792945
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 25, 2017
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D799007
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: October 3, 2017
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D823142
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: July 17, 2018
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D829572
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: October 2, 2018
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D837664
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: January 8, 2019
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D849192
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 21, 2019
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D851209
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: June 11, 2019
    Assignee: Yuan Mei Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D874256
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 4, 2020
    Assignee: Yuan Mei. Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D874257
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 4, 2020
    Assignee: Yuan Mei. Corp.
    Inventor: Chi-Han Cheng
  • Patent number: D875517
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 18, 2020
    Assignee: Yuan Mei. Corp.
    Inventor: Chi-Han Cheng