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).

  • Patent number: 11905943
    Abstract: 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: Grant
    Filed: November 30, 2021
    Date of Patent: February 20, 2024
    Assignee: Fluke Corporation
    Inventors: Fudong Xu, Hui Wang, Shounan Luo
  • Publication number: 20220170806
    Abstract: 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: Application
    Filed: November 30, 2021
    Publication date: June 2, 2022
    Inventors: Fudong Xu, Hui Wang, Shaolin Xia, Songnan Fan, Shounan Luo
  • Publication number: 20220170456
    Abstract: 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: Application
    Filed: November 30, 2021
    Publication date: June 2, 2022
    Inventors: Fudong Xu, Hui Wang, Shounan Luo
  • Publication number: 20210265110
    Abstract: 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: Application
    Filed: June 28, 2019
    Publication date: August 26, 2021
    Inventors: Shounan Luo, Fang Li
  • Patent number: 10203356
    Abstract: 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: Grant
    Filed: September 2, 2016
    Date of Patent: February 12, 2019
    Assignee: Fluke Corporation
    Inventors: Fang Li, Wei Huang, Shounan Luo
  • Patent number: 9739800
    Abstract: 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: Grant
    Filed: September 22, 2015
    Date of Patent: August 22, 2017
    Assignee: Fluke Corporation
    Inventor: Shounan Luo
  • Publication number: 20170059626
    Abstract: 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: Application
    Filed: September 2, 2016
    Publication date: March 2, 2017
    Inventors: Fang Li, Wei Huang, Shounan Luo
  • Patent number: 9300339
    Abstract: 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: Grant
    Filed: June 25, 2013
    Date of Patent: March 29, 2016
    Assignee: Danaher (Shanghai) Industrial Instrumentation Technologies R&D Co., Ltd.
    Inventors: Shounan Luo, Junlong Sheng, Tao Zhong
  • Publication number: 20160084879
    Abstract: 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: Application
    Filed: September 22, 2015
    Publication date: March 24, 2016
    Inventor: Shounan Luo
  • Publication number: 20140070813
    Abstract: 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: Application
    Filed: June 25, 2013
    Publication date: March 13, 2014
    Inventors: Shounan Luo, Junlong Sheng, Tao Zhong
  • Patent number: 7659710
    Abstract: 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: Grant
    Filed: October 20, 2008
    Date of Patent: February 9, 2010
    Assignee: Fluke Corporation
    Inventors: Shounan Luo, Wang Yong
  • Publication number: 20090039870
    Abstract: 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: Application
    Filed: October 20, 2008
    Publication date: February 12, 2009
    Applicant: Fluke Corporation
    Inventors: Shounan Luo, Wang Yong
  • Patent number: 7439726
    Abstract: 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: Grant
    Filed: April 27, 2006
    Date of Patent: October 21, 2008
    Assignee: Fluke Corporation
    Inventors: Shounan Luo, Wang Yong
  • Patent number: 7312603
    Abstract: 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: Grant
    Filed: May 25, 2007
    Date of Patent: December 25, 2007
    Assignee: Fluke Corporation
    Inventors: Shounan Luo, Wang Yong
  • Publication number: 20070252579
    Abstract: 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: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Inventors: Shounan Luo, Wang Yong
  • Publication number: 20070252578
    Abstract: 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: Application
    Filed: May 25, 2007
    Publication date: November 1, 2007
    Inventors: Shounan Luo, Wang Yong