Patents by Inventor Mingwei Shan
Mingwei Shan 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: 11820750Abstract: The present disclosure generally relates to the field of biological control of Ectropis. oblique and Ectropis grisescens as pests in tea plantations, and in particular to a high efficient sex pheromone lures for E. oblique and E. grisescens. By combinating (3Z,6Z,9Z)-octadecatriene with two different configurations of (3Z,9Z)-6,7-epoxy-octadecadiene and (3Z,6Z)-9,10-epoxy-octadecadiene, high efficient sex pheromone lures were obtained. The high efficient sex pheromone lures have significantly improved trapping effect on E. oblique and E. grisescens.Type: GrantFiled: February 22, 2023Date of Patent: November 21, 2023Assignee: CHANGZHOU UNIVERSITYInventors: Xin Chen, Ke Chen, Xueyuan Zhang, Chengfang Zhang, Jianlong Bi, Yanqiang Jin, Mingwei Shan, Shuai Zhao, Mingcheng Qian
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Publication number: 20230202995Abstract: The present disclosure generally relates to the field of biological control of Ectropis. oblique and Ectropis grisescens as pests in tea plantations, and in particular to a high efficient sex pheromone lures for E. oblique and E. grisescens. By combinating (3Z,6Z,9Z)-octadecatriene with two different configurations of (3Z,9Z)-6,7-epoxy-octadecadiene and (3Z,6Z)-9,10-epoxy-octadecadiene, high efficient sex pheromone lures were obtained. The high efficient sex pheromone lures have significantly improved trapping effect on E. oblique and E. grisescens.Type: ApplicationFiled: February 22, 2023Publication date: June 29, 2023Applicant: CHANGZHOU UNIVERSITYInventors: Xin CHEN, Ke CHEN, Xueyuan ZHANG, Chengfang ZHANG, Jianlong BI, Yanqiang JIN, Mingwei SHAN, Shuai ZHAO, Mingcheng QIAN
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Publication number: 20210385915Abstract: A system to warm contents in a tray is provided. The system includes an induction heating system a resting surface, and a temperature detector disposed upon the resting surface such that a pan that is disposed upon the resting surface contacts the temperature detector. The temperature detector includes an RTD and associated wiring, a first housing that receives the RTD, and a grommet disposed around the first housing. The temperature detector additionally includes a cylindrical second housing that supports and receives a portion of the first housing therewith and through a first end of the second housing. The grommet includes an arcuate portion that is biased in a direction upwardly from the resting surface, the arcuate portion comprises a central opening through which the first housing extends, wherein the central opening defines an inner circular surface that is disposed between the first and second housings.Type: ApplicationFiled: June 8, 2021Publication date: December 9, 2021Inventors: Steven L. Yoder, Gabrielle Davis, Mingwei Shan
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Patent number: 10477624Abstract: Systems and methods of quasi-resonant induction heating are provided. In particular, an induction heating system having a quasi-resonant topology can have a quasi-resonant inverter. The inverter can include an induction heating coil configured to inductively head a load with a magnetic field, and a power supply circuit configured to supply a power signal to the induction heating coil. The inverter can further include a first switching element and a second switching element coupled in parallel with the first switching element. The inverter can further include a resonant capacitor coupled in parallel with the induction heating coil. The inverter can further include one or more control devices configured to control operation of the first and second switching elements to regulate an amount of current provided to the induction coil based at least in part on a desired operating frequency associated with the quasi-resonant inverter.Type: GrantFiled: April 13, 2016Date of Patent: November 12, 2019Assignee: Haier US Appliance Solutions, Inc.Inventors: Scott Michael Gelber, William Hull Bicknell, Mingwei Shan
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Publication number: 20170303345Abstract: Systems and methods of quasi-resonant induction heating are provided. In particular, an induction heating system having a quasi-resonant topology can have a quasi-resonant inverter. The inverter can include an induction heating coil configured to inductively head a load with a magnetic field, and a power supply circuit configured to supply a power signal to the induction heating coil. The inverter can further include a first switching element and a second switching element coupled in parallel with the first switching element. The inverter can further include a resonant capacitor coupled in parallel with the induction heating coil. The inverter can further include one or more control devices configured to control operation of the first and second switching elements to regulate an amount of current provided to the induction coil based at least in part on a desired operating frequency associated with the quasi-resonant inverter.Type: ApplicationFiled: April 13, 2016Publication date: October 19, 2017Inventors: Scott Michael Gelber, William Hull Bicknell, Mingwei Shan
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Patent number: 9596721Abstract: The present disclosure provides systems and methods for protecting switching elements in an induction heating system. A switching power loss associated with a switching element of the induction heating system can be calculated and an operating frequency of the induction heating system can be adjusted based upon the switching power loss. According to one aspect, the switching power loss can be classified into one of a plurality of threat zones based upon the magnitude of the switching power loss and the operating frequency can be adjusted based upon the threat zone into which the switching power loss is classified. According to another aspect, the switching power loss can be calculated based at least in part on a duty cycle of an output signal. The duty cycle of the output signal can provide an indication of the proximity of the operating frequency of the induction heating system to resonance.Type: GrantFiled: January 14, 2013Date of Patent: March 14, 2017Assignee: Haier US Appliance Solutions, Inc.Inventors: Mingwei Shan, Gregory Francis Gawron, Sr., Daniel Vincent Brosnan, John Michael Kulp, Jr.
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Publication number: 20160095168Abstract: Systems and methods for detecting vessel presence for an induction heating apparatus are disclosed. A detector circuit generates an output signal based on a feedback signal corresponding to a signal, such as current, flowing through an induction heating coil. The output signal has low frequency components that are averaged over multiple integer periods and compared to a reference value to determine the presence or absence of a vessel on the induction heating coil.Type: ApplicationFiled: September 30, 2014Publication date: March 31, 2016Inventors: Mingwei Shan, Gregory Francis Gawron, SR., William Hull Bicknell, John Michael Kulp, JR.
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Patent number: 9198233Abstract: A method for operating an induction cooktop having multiple induction heating coils includes monitoring a characteristic of the heating coils indicative of audible noise generated by simultaneous operation of multiple induction heating coils. Upon indication of audible noise from the monitored characteristic, an operating characteristic of at least one of the induction heating coils is varied so as to change the audible noise into a pre-defined, stored audible noise pattern that is desirous to a consumer or user of the cooktop.Type: GrantFiled: June 9, 2011Date of Patent: November 24, 2015Assignee: General Electric CompanyInventors: Daniel Vincent Brosnan, Gregory Francis Gawron, Sr., Mingwei Shan, John Michael Kulp, Jr., Mariano Pablo Filippa
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Patent number: 9155130Abstract: An induction cooktop appliance system and method for controlling the induction cooktop appliance based on a cookware position is provided. A variable power signal can be applied to an induction coil from an inverter. The power signal can be driven at a test frequency and an operating frequency. An electrical signal can be detected across a shunt resistor based on the test frequency and a cookware position can be determined based on the electrical signal. The operating frequency supplied to the induction coil can be modified based on determined cookware position.Type: GrantFiled: May 29, 2012Date of Patent: October 6, 2015Assignee: General Electric CompanyInventors: Mingwei Shan, Gregory Francis Gawron, Daniel Vincent Brosnan, John Michael Kulp, Jr.
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Patent number: 9066373Abstract: A system and method of controlling an induction cooking appliance based on a feedback signal. A feedback signal sampling time interval may be triggered when a power control signal has a magnitude of zero. The feedback signal sample may be used to calculate a status factor and the appliance may be controlled based on the calculated status factor.Type: GrantFiled: February 8, 2012Date of Patent: June 23, 2015Assignee: General Electric CompanyInventors: John Michael Kulp, Jr., Gregory Francis Gawron, Sr., Daniel Vincent Brosnan, Mingwei Shan
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Patent number: 8853991Abstract: A system and method of detecting phase angle in an inverter is provided. A shunt resistor is coupled to a controller which is part of an inverter circuit and a phase angle may be directly derived from the detected voltage across the shunt resistor. The detected shunt voltage may be used to adjust the power delivery from the inverter to the load.Type: GrantFiled: January 31, 2012Date of Patent: October 7, 2014Assignee: General Electric CompanyInventors: Mingwei Shan, William Hull Bicknell, Eric K. Watson, Richard D. Suel, II
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Publication number: 20140197160Abstract: The present disclosure provides systems and methods for protecting switching elements in an induction heating system. A switching power loss associated with a switching element of the induction heating system can be calculated and an operating frequency of the induction heating system can be adjusted based upon the switching power loss. According to one aspect, the switching power loss can be classified into one of a plurality of threat zones based upon the magnitude of the switching power loss and the operating frequency can be adjusted based upon the threat zone into which the switching power loss is classified. According to another aspect, the switching power loss can be calculated based at least in part on a duty cycle of an output signal. The duty cycle of the output signal can provide an indication of the proximity of the operating frequency of the induction heating system to resonance.Type: ApplicationFiled: January 14, 2013Publication date: July 17, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Mingwei Shan, Gregory Francis Gawron, SR., Daniel Vincent Brosnan, John Michael Kulp, JR.
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Publication number: 20140014647Abstract: An induction heating system includes an induction heating coil operable to inductively heat a load with a magnetic field; a detector for detecting a current through the coil and providing a current signal representative of the current; and a controller with a memory in communication with a processor. The memory includes program instructions for execution by the processor to detect a presence of the load on the induction heating coil based on a characteristic of the current signal; determine a resonant frequency of the system with the load from a characteristic of the current signal; determine operational performance characteristics of the system; and output an indication of the operational performance characteristics of the system.Type: ApplicationFiled: July 12, 2012Publication date: January 16, 2014Inventors: Daniel Vincent Brosnan, Gregory Francis Gawron, SR., John Michael Kulp, JR., Mingwei Shan
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Publication number: 20130320000Abstract: An induction cooktop appliance system and method for controlling the induction cooktop appliance based on a cookware position is provided. A variable power signal can be applied to an induction coil from an inverter. The power signal can be driven at a test frequency and an operating frequency. An electrical signal can be detected across a shunt resistor based on the test frequency and a cookware position can be determined based on the electrical signal. The operating frequency supplied to the induction coil can be modified based on determined cookware position.Type: ApplicationFiled: May 29, 2012Publication date: December 5, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Mingwei Shan, Gregory Francis Gawron, Daniel Vincent Brosnan, John Michael Kulp, JR.
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Publication number: 20130200069Abstract: A system and method of controlling an induction cooking appliance based on a feedback signal. A feedback signal sampling time interval may be triggered when a power control signal has a magnitude of zero. The feedback signal sample may be used to calculate a status factor and the appliance may be controlled based on the calculated status factor.Type: ApplicationFiled: February 8, 2012Publication date: August 8, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: John Michael Kulp, JR., Gregory Francis Gawron, SR., Daniel Vincent Brosnan, Mingwei Shan
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Publication number: 20130194851Abstract: A system and method of detecting phase angle in an inverter is provided. A shunt resistor is coupled to a controller which is part of an inverter circuit and a phase angle may be directly derived from the detected voltage across the shunt resistor. The detected shunt voltage may be used to adjust the power delivery from the inverter to the load.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Mingwei Shan, William Hull Bicknell, Eric K. Watson, Richard D. Suel, II
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Patent number: D978604Type: GrantFiled: June 12, 2020Date of Patent: February 21, 2023Assignee: COOKTEK INDUCTION SYSTEMS LLCInventors: Steven L. Yoder, Gabrielle Davis, Mingwei Shan
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Patent number: D1027545Type: GrantFiled: January 24, 2023Date of Patent: May 21, 2024Assignee: COOKTEK INDUCTION SYSTEMS LLCInventors: Steven L. Yoder, Gabrielle Davis, Mingwei Shan
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Patent number: D1027555Type: GrantFiled: January 24, 2023Date of Patent: May 21, 2024Assignee: COOKTEK INDUCTION SYSTEMS LLCInventors: Steven L. Yoder, Gabrielle Davis, Mingwei Shan
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Patent number: D1028617Type: GrantFiled: January 24, 2023Date of Patent: May 28, 2024Assignee: COOKTEK INDUCTION SYSTEMS LLCInventors: Steven L. Yoder, Gabrielle Davis, Mingwei Shan