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).
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Patent number: 11478804Abstract: 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: GrantFiled: January 9, 2019Date of Patent: October 25, 2022Assignee: K-Rain Manufacturing Corp.Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Richard Zhang
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Patent number: 10418965Abstract: 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: GrantFiled: April 19, 2017Date of Patent: September 17, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Weiming Feng, Kai Huang, Xingong Xu, Rui Hao, Yuhao Fu
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Publication number: 20190143360Abstract: 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: ApplicationFiled: January 9, 2019Publication date: May 16, 2019Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Richard Zhang
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Patent number: 10232387Abstract: 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: GrantFiled: February 18, 2015Date of Patent: March 19, 2019Inventors: Carl L.C. Kah, Jr., Carl L.C. Kah, III, Weiming Feng
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Patent number: 10220405Abstract: 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: GrantFiled: November 19, 2015Date of Patent: March 5, 2019Assignee: K-Rain Manufacturing Corp.Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Richard Zhang
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Publication number: 20170302248Abstract: 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: ApplicationFiled: April 19, 2017Publication date: October 19, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Weiming FENG, Kai HUANG, Xingong XU, Rui HAO, Yuhao FU
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Publication number: 20160074896Abstract: 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: ApplicationFiled: November 19, 2015Publication date: March 17, 2016Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Richard Zhang
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Patent number: 9248459Abstract: 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: GrantFiled: January 5, 2009Date of Patent: February 2, 2016Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Frederick A. Hall
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Patent number: 9192956Abstract: 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: GrantFiled: November 14, 2011Date of Patent: November 24, 2015Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng, Richard Zhang
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Publication number: 20150158036Abstract: 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: ApplicationFiled: February 18, 2015Publication date: June 11, 2015Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng
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Patent number: 8991730Abstract: 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: GrantFiled: December 16, 2011Date of Patent: March 31, 2015Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
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Patent number: 8628027Abstract: 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: GrantFiled: December 19, 2008Date of Patent: January 14, 2014Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
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Publication number: 20120153051Abstract: 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: ApplicationFiled: December 16, 2011Publication date: June 21, 2012Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng
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Publication number: 20120118405Abstract: 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: ApplicationFiled: November 14, 2011Publication date: May 17, 2012Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Richard Zhang
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Publication number: 20090173803Abstract: 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: ApplicationFiled: January 5, 2009Publication date: July 9, 2009Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng, Frederick A. Hall
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Publication number: 20090173804Abstract: 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: ApplicationFiled: December 19, 2008Publication date: July 9, 2009Inventors: Carl L.C. Kah, JR., Carl L.C. Kah, III, Weiming Feng
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Patent number: D615152Type: GrantFiled: April 16, 2009Date of Patent: May 4, 2010Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
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Patent number: D628272Type: GrantFiled: March 15, 2010Date of Patent: November 30, 2010Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng
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Patent number: D636459Type: GrantFiled: October 27, 2010Date of Patent: April 19, 2011Inventors: Carl L. C. Kah, Jr., Carl L. C. Kah, III, Weiming Feng