Patents by Inventor Weiming Feng

Weiming Feng 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: 11478804
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: October 25, 2022
    Assignee: K-Rain Manufacturing Corp.
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Richard Zhang
  • Patent number: 10418965
    Abstract: A positioning method includes: emitting an interrogator signal from an electronic device; detecting, by the electronic device, a response signal that is generated and emitted by a sensor among a plurality of sensors, in response to the interrogator signal; and acquire location information about the sensor by identifying the sensor based on the detected response signal. The response signal is generated based on transduction of the interrogator signal.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: September 17, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Weiming Feng, Kai Huang, Xingong Xu, Rui Hao, Yuhao Fu
  • Publication number: 20190143360
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Richard Zhang
  • Patent number: 10232387
    Abstract: An irrigation sprinkler and sprinkler nozzle assembly including a self contained pressure regulator and flow control ring, which can be assembled with a desired spray deflector, shrub bubbler or rotating stream distributor on the top of the nozzle assembly. The pressure regulator housing is incorporated into the center of the nozzle assembly and includes a reference pressure chamber connected to atmospheric pressure with a spring bias enclosed to bias a pressure responsive movable member that is connected to an upstream pressure balanced flow throttling valve. A combination deflector pop-up pressure regulating mechanism housed in the filter of the nozzle housing assembly is also shown.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: March 19, 2019
    Inventors: Carl L.C. Kah, Jr., Carl L.C. Kah, III, Weiming Feng
  • Patent number: 10220405
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 5, 2019
    Assignee: K-Rain Manufacturing Corp.
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Richard Zhang
  • Publication number: 20170302248
    Abstract: A positioning method includes: emitting an interrogator signal from an electronic device; detecting, by the electronic device, a response signal that is generated and emitted by a sensor among a plurality of sensors, in response to the interrogator signal; and acquire location information about the sensor by identifying the sensor based on the detected response signal. The response signal is generated based on transduction of the interrogator signal.
    Type: Application
    Filed: April 19, 2017
    Publication date: October 19, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Weiming FENG, Kai HUANG, Xingong XU, Rui HAO, Yuhao FU
  • Publication number: 20160074896
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 17, 2016
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Richard Zhang
  • Patent number: 9248459
    Abstract: A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes a nozzle housing with an inlet for pressurized water and an outlet downstream of the inlet, a rotatable arc of coverage adjustment ring mounted on the housing such that rotation of the arc of coverage adjustment ring extends and reduces an arcuate exit opening, a range adjustment ring, or upstream flow area adjustment ring is also provided with an upstream flow area throttling element that increases or decreases the flow area as the range adjustment ring is rotated.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: February 2, 2016
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Frederick A. Hall
  • Patent number: 9192956
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: November 24, 2015
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Richard Zhang
  • Publication number: 20150158036
    Abstract: An irrigation sprinkler and sprinkler nozzle assembly including a self contained pressure regulator and flow control ring, which can be assembled with a desired spray deflector, shrub bubbler or rotating stream distributor on the top of the nozzle assembly. The pressure regulator housing is incorporated into the center of the nozzle assembly and includes a reference pressure chamber connected to atmospheric pressure with a spring bias enclosed to bias a pressure responsive movable member that is connected to an upstream pressure balanced flow throttling valve. A combination deflector pop-up pressure regulating mechanism housed in the filter of the nozzle housing assembly is also shown.
    Type: Application
    Filed: February 18, 2015
    Publication date: June 11, 2015
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng
  • Patent number: 8991730
    Abstract: An irrigation sprinkler and sprinkler nozzle assembly including a self contained pressure regulator and flow control ring, which can be assembled with a desired spray deflector, shrub bubbler or rotating stream distributor on the top of the nozzle assembly. The pressure regulator housing is incorporated into the center of the nozzle assembly and includes a reference pressure chamber connected to atmospheric pressure with a spring bias enclosed to bias a pressure responsive movable member that is connected to an upstream pressure balanced flow throttling valve. A combination deflector pop-up pressure regulating mechanism housed in the filter of the nozzle housing assembly is also shown.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 31, 2015
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
  • Patent number: 8628027
    Abstract: An oscillating nozzle sprinkler with adjustable arc of coverage in accordance with an embodiment of the present application includes a nozzle, a nozzle drive mechanism operable to drive the nozzle through a set arc of coverage, an arc set mechanism coupled to the nozzle drive mechanism and operable to adjust the set arc of coverage for the nozzle drive mechanism; and a flow control mechanism operable to vary a nozzle flow area through which water flows through the nozzle and out of the sprinkler, the flow control mechanism coupled to the arc set mechanism such that the flow area is adjusted with the arc of coverage.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 14, 2014
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
  • Publication number: 20120153051
    Abstract: An irrigation sprinkler and sprinkler nozzle assembly including a self contained pressure regulator and flow control ring, which can be assembled with a desired spray deflector, shrub bubbler or rotating stream distributor on the top of the nozzle assembly. The pressure regulator housing is incorporated into the center of the nozzle assembly and includes a reference pressure chamber connected to atmospheric pressure with a spring bias enclosed to bias a pressure responsive movable member that is connected to an upstream pressure balanced flow throttling valve. A combination deflector pop-up pressure regulating mechanism housed in the filter of the nozzle housing assembly is also shown.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng
  • Publication number: 20120118405
    Abstract: A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.
    Type: Application
    Filed: November 14, 2011
    Publication date: May 17, 2012
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Richard Zhang
  • Publication number: 20090173803
    Abstract: A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes a nozzle housing with an inlet for pressurized water and an outlet downstream of the inlet, a rotatable arc of coverage adjustment ring mounted on the housing such that rotation of the arc of coverage adjustment ring extends and reduces an arcuate exit opening, a range adjustment ring, or upstream flow area adjustment ring is also provided with an upstream flow area throttling element that increases or decreases the flow area as the range adjustment ring is rotated.
    Type: Application
    Filed: January 5, 2009
    Publication date: July 9, 2009
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Frederick A. Hall
  • Publication number: 20090173804
    Abstract: An oscillating nozzle sprinkler with adjustable arc of coverage in accordance with an embodiment of the present application includes a nozzle, a nozzle drive mechanism operable to drive the nozzle through a set arc of coverage, an arc set mechanism coupled to the nozzle drive mechanism and operable to adjust the set arc of coverage for the nozzle drive mechanism; and a flow control mechanism operable to vary a nozzle flow area through which water flows through the nozzle and out of the sprinkler, the flow control mechanism coupled to the arc set mechanism such that the flow area is adjusted with the arc of coverage.
    Type: Application
    Filed: December 19, 2008
    Publication date: July 9, 2009
    Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng
  • Patent number: D615152
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: May 4, 2010
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
  • Patent number: D628272
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: November 30, 2010
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
  • Patent number: D636459
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: April 19, 2011
    Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng