Patents by Inventor Shounan Luo
Shounan Luo 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: 11905943Abstract: A multi-stage electric gas pump includes a driving mechanism and an eccentric shaft including a main body having a longitudinal axis, a first eccentric portion, and a second eccentric portion, wherein the first eccentric portion and the second eccentric portion are fixed on the main body. The eccentric shaft is driven by the driving mechanism to produce a first circular movement of the first eccentric portion around the longitudinal axis and a second circular movement of the second eccentric portion around the longitudinal axis, wherein the second circular movement is synchronized with the first circular movement. The multi-stage electric gas pump further includes a first cylinder, a second cylinder, and a third cylinder. The cylinders in three stages are driven by the eccentric shaft so as to achieve three-stage pressurization of gas.Type: GrantFiled: November 30, 2021Date of Patent: February 20, 2024Assignee: Fluke CorporationInventors: Fudong Xu, Hui Wang, Shounan Luo
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Publication number: 20220170806Abstract: A pressure measurement device is configured to adjust a gas pressure in an external gas cavity that is fluidly coupled thereto and measure the adjusted gas pressure in the external gas cavity. The pressure measurement device includes a port, a pressure control module, a port pressure sensor, and a gas discharging port. The pressure measurement device is fluidly coupled to the external gas cavity through the port. The pressure control module is coupled to the port through a gas passage and configured to operably provide pressurized gas to the external gas cavity or draw gas from the external gas cavity. The port pressure sensor is coupled to the port and configured to measure a gas pressure at the port. The gas discharging port is coupled to the port and the pressure control module, and configured to operably discharge gas from the port or the pressure control module to an external environment.Type: ApplicationFiled: November 30, 2021Publication date: June 2, 2022Inventors: Fudong Xu, Hui Wang, Shaolin Xia, Songnan Fan, Shounan Luo
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Publication number: 20220170456Abstract: A multi-stage electric gas pump includes a driving mechanism and an eccentric shaft including a main body having a longitudinal axis, a first eccentric portion, and a second eccentric portion, wherein the first eccentric portion and the second eccentric portion are fixed on the main body. The eccentric shaft is driven by the driving mechanism to produce a first circular movement of the first eccentric portion around the longitudinal axis and a second circular movement of the second eccentric portion around the longitudinal axis, wherein the second circular movement is synchronized with the first circular movement. The multi-stage electric gas pump further includes a first cylinder, a second cylinder, and a third cylinder. The cylinders in three stages are driven by the eccentric shaft so as to achieve three-stage pressurization of gas.Type: ApplicationFiled: November 30, 2021Publication date: June 2, 2022Inventors: Fudong Xu, Hui Wang, Shounan Luo
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Publication number: 20210265110Abstract: A current transformer includes first and second transformer assemblies that each respectively comprise first and second groups of stacked iron core components. A first interface and a second interface are defined at an end of the first transformer assembly. A third interface and a fourth interface are defined at an end of the second transformer assembly. At least one of the first interface and the second interface is detachably connected with at least one of the third interface and the fourth interface. When the first and second transformer assemblies are connected with each other, the first and second groups of iron core components are combined to form a plurality of closed ring-shaped iron cores, and coils are respectively wound on at least two closed ring-shaped iron cores. An enclosed area defined between the first and second transformer assemblies causes induced current to be generated in at least one coil.Type: ApplicationFiled: June 28, 2019Publication date: August 26, 2021Inventors: Shounan Luo, Fang Li
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Patent number: 10203356Abstract: A portable measurement device includes an elongated body, a stationary portion fixedly mounted to a distal end, and a movable jaw movably mounted to the distal end and movable between a closed position and an open position. In the closed position, the movable jaw and the stationary portion form a closed loop with an inner diameter of less than or equal to 10 mm. Alternatively, at least one of the movable jaw and the stationary portion has a cross-sectional diameter of less than or equal to 5 mm. In the open position, the movable jaw and the stationary portion define a gap allowing a wire under test to pass therethrough into the loop. A switch drives the movable jaw between the closed and open positions. A measurement circuit electrically coupled to the stationary portion and the movable jaw to receive and measure a sensing current generated by the closed loop.Type: GrantFiled: September 2, 2016Date of Patent: February 12, 2019Assignee: Fluke CorporationInventors: Fang Li, Wei Huang, Shounan Luo
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Patent number: 9739800Abstract: The present application relates to a clamp meter and a clamp probe that can be matched for use with the clamp meter. The clamp meter comprises a main meter body having an interfacing connector and one or more clamp probes, wherein each of the clamp probes is detachably connectable to the interfacing connector of the main meter body. Each of the clamp probes has a converting unit that converts a signal measured by the clamp probe to an output measurement signal within a predetermined measurement range of the main meter body, and each of the clamp probes has an identity indicator readable by the main meter body. As the clamp meter according to the present application can be matched with a plurality of clamp probes having different measurement ranges, a user only needs to purchase one main meter body and one or more clamp probes of different models to meet various measuring needs. This can enhance the flexibility and extendibility of the usage of a clamp meter, as well as reduce the user's financial burden.Type: GrantFiled: September 22, 2015Date of Patent: August 22, 2017Assignee: Fluke CorporationInventor: Shounan Luo
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Publication number: 20170059626Abstract: A portable measurement device includes an elongated body, a stationary portion fixedly mounted to a distal end, and a movable jaw movably mounted to the distal end and movable between a closed position and an open position. In the closed position, the movable jaw and the stationary portion form a closed loop with an inner diameter of less than or equal to 10 mm. Alternatively, at least one of the movable jaw and the stationary portion has a cross-sectional diameter of less than or equal to 5 mm. In the open position, the movable jaw and the stationary portion define a gap allowing a wire under test to pass therethrough into the loop. A switch drives the movable jaw between the closed and open positions. A measurement circuit electrically coupled to the stationary portion and the movable jaw to receive and measure a sensing current generated by the closed loop.Type: ApplicationFiled: September 2, 2016Publication date: March 2, 2017Inventors: Fang Li, Wei Huang, Shounan Luo
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Patent number: 9300339Abstract: A wireless handle for a battery tester, comprising a wireless signal transmitting/receiving means capable of exchanging information with a battery tester through wireless communication; an information input means; an information output means; and a signal processing and control means, wherein the wireless signal transmitting/receiving means, the information input means, and the information output means are coupled with the signal processing and control means. The wireless handle enables an operator to control some functions of the battery tester and/or monitor detected information remotely during the process of testing, which can increase efficiency of the testing and avoid any disturbance of the testing circuits caused by the information input means and the information output means.Type: GrantFiled: June 25, 2013Date of Patent: March 29, 2016Assignee: Danaher (Shanghai) Industrial Instrumentation Technologies R&D Co., Ltd.Inventors: Shounan Luo, Junlong Sheng, Tao Zhong
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Publication number: 20160084879Abstract: The present application relates to a clamp meter and a clamp probe that can be matched for use with the clamp meter. The clamp meter comprises a main meter body having an interfacing connector and one or more clamp probes, wherein each of the clamp probes is detachably connectable to the interfacing connector of the main meter body. Each of the clamp probes has a converting unit that converts a signal measured by the clamp probe to an output measurement signal within a predetermined measurement range of the main meter body, and each of the clamp probes has an identity indicator readable by the main meter body. As the clamp meter according to the present application can be matched with a plurality of clamp probes having different measurement ranges, a user only needs to purchase one main meter body and one or more clamp probes of different models to meet various measuring needs. This can enhance the flexibility and extendibility of the usage of a clamp meter, as well as reduce the user's financial burden.Type: ApplicationFiled: September 22, 2015Publication date: March 24, 2016Inventor: Shounan Luo
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Publication number: 20140070813Abstract: A wireless handle for a battery tester, comprising a wireless signal transmitting/receiving means capable of exchanging information with a battery tester through wireless communication; an information input means; an information output means; and a signal processing and control means, wherein the wireless signal transmitting/receiving means, the information input means, and the information output means are coupled with the signal processing and control means. The wireless handle enables an operator to control some functions of the battery tester and/or monitor detected information remotely during the process of testing, which can increase efficiency of the testing and avoid any disturbance of the testing circuits caused by the information input means and the information output means.Type: ApplicationFiled: June 25, 2013Publication date: March 13, 2014Inventors: Shounan Luo, Junlong Sheng, Tao Zhong
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Patent number: 7659710Abstract: A current clamp meter having a current meter body and a detachable current clamp. The current meter body and the current clamp are configured so that the current clamp is detachable from the current meter body and the meter is operable with the current clamp either attached to the current meter body or detached from the current meter body.Type: GrantFiled: October 20, 2008Date of Patent: February 9, 2010Assignee: Fluke CorporationInventors: Shounan Luo, Wang Yong
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Publication number: 20090039870Abstract: A current clamp meter having a current meter body and a detachable current clamp. The current meter body and the current clamp are configured so that the current clamp is detachable from the current meter body and the meter is operable with the current clamp either attached to the current meter body or detached from the current meter body.Type: ApplicationFiled: October 20, 2008Publication date: February 12, 2009Applicant: Fluke CorporationInventors: Shounan Luo, Wang Yong
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Patent number: 7439726Abstract: A current clamp meter having a current meter body and a detachable current clamp. The current meter body and the current clamp are configured so that the current clamp is detachable from the current meter body and the meter is operable with the current clamp either attached to the current meter body or detached from the current meter body.Type: GrantFiled: April 27, 2006Date of Patent: October 21, 2008Assignee: Fluke CorporationInventors: Shounan Luo, Wang Yong
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Patent number: 7312603Abstract: A current clamp meter having a current meter body and a detachable current clamp. The current meter body and the current clamp are configured so that the current clamp is detachable from the current meter body and the meter is operable with the current clamp either attached to the current meter body or detached from the current meter body.Type: GrantFiled: May 25, 2007Date of Patent: December 25, 2007Assignee: Fluke CorporationInventors: Shounan Luo, Wang Yong
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Publication number: 20070252579Abstract: A current clamp meter having a current meter body and a detachable current clamp. The current meter body and the current clamp are configured so that the current clamp is detachable from the current meter body and the meter is operable with the current clamp either attached to the current meter body or detached from the current meter body.Type: ApplicationFiled: April 27, 2006Publication date: November 1, 2007Inventors: Shounan Luo, Wang Yong
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Publication number: 20070252578Abstract: A current clamp meter having a current meter body and a detachable current clamp. The current meter body and the current clamp are configured so that the current clamp is detachable from the current meter body and the meter is operable with the current clamp either attached to the current meter body or detached from the current meter body.Type: ApplicationFiled: May 25, 2007Publication date: November 1, 2007Inventors: Shounan Luo, Wang Yong