Patents by Inventor John Zhou
John Zhou 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: 11035357Abstract: Method and system for controlling a compressor and a supply fan in a heating, ventilating and air conditioning (HVAC) system are disclosed. The system includes a compressor having a startup state and a running state, a supply fan, and a controller configured to control the compressor and the supply fan in the HVAC system. The compressor and the supply fan are controlled based on a dehumidification map and/or an efficiency map. The system also includes a cooling coil configured to receive a fluid in heat exchange relationship with refrigerant from an evaporator to cool air. The supply fan is configured to deliver the cooled air from the cooling coil to a conditioned space as supply air.Type: GrantFiled: October 2, 2017Date of Patent: June 15, 2021Assignee: TRANE INTERNATIONAL INC.Inventors: John Zhou, Roger J. Voorhis, Thomas J. Clanin
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Patent number: 10775069Abstract: A heating, ventilation, and air conditioning (“HVAC”) system and a method for controlling the HVAC system. The HVAC system includes a compressor and a variable speed discharge fan. The method includes determining, with a controller, a low fan capacity setting based on an operation of the compressor. The method also includes maintaining a discharge fan capacity at the low fan capacity setting, and varying a coil discharge air temperature between a low discharge air temperature limit and a high discharge air temperature limit. The method further includes when the coil discharge air temperature reaches the low discharge air temperature limit, varying the discharge fan capacity between the low fan capacity setting and a high fan capacity setting so as to maintain a space temperature at a space temperature setpoint, while maintaining the coil discharge air temperature at the low discharge air temperature limit.Type: GrantFiled: February 4, 2019Date of Patent: September 15, 2020Assignee: TRANE INTERNATIONAL INC.Inventors: John Zhou, Thomas J. Clanin
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Publication number: 20190242609Abstract: Methods to regulate a discharge fan and a coil of a HVAC system are described. The method may include regulating a discharge air temperature of the cooling/heating coil of the HVAC system while maintain the discharge fan at a low capacity setting. The method may also include maintaining the coil at a low discharge air temperature (or a high discharge air temperature) setting, while varying a fan capacity of the discharge fan. The method may include a discharge capacity boost that includes decreasing (or elevating) the discharge air temperature limit of the coil beyond the low discharge air temperature (or the high discharge air temperature) limit. The methods as described herein may be applicable to a HVAC system that has variable airflow capability.Type: ApplicationFiled: February 4, 2019Publication date: August 8, 2019Inventors: John ZHOU, Thomas J. CLANIN
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Patent number: 10197300Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a fan with a variable fan capacity; a coil with a variable discharge air temperature; and a controller configured to control the variable fan capacity of the fan and the variable discharge air temperature of the coil. The controller is configured to vary the variable capacity of the fan to maintain a space temperature at a space temperature setpoint while maintaining the variable discharge air temperature of the coil at a low discharge air temperature limit. The controller is configured to vary the variable discharge air temperature between a high discharge air temperature limit and the low discharge air temperature limit to maintain the space temperature at the space temperature setpoint while maintaining the variable capacity of the fan at a low fan capacity setting.Type: GrantFiled: May 15, 2017Date of Patent: February 5, 2019Assignee: TRANE INTERNATIONAL INC.Inventors: John Zhou, Thomas J. Clanin
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Publication number: 20180087498Abstract: A system and method for controlling a system that includes a variable speed compressor are described. The method can provide improved accuracy in the control of a system, for example, a heating, ventilating, and air condition (HVAC) system that includes a variable speed compressor, and can reduce a compressor cycling frequency of the compressor when a required capacity is below a minimum capacity of the compressor.Type: ApplicationFiled: October 2, 2017Publication date: March 29, 2018Inventors: John ZHOU, Roger J. VOORHIS, Thomas J. CLANIN
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Patent number: 9777724Abstract: A system and method for controlling a system that includes a variable speed compressor are described. The method can provide improved accuracy in the control of a system, for example, a heating, ventilating, and air condition (HVAC) system that includes a variable speed compressor, and can reduce a compressor cycling frequency of the compressor when a required capacity is below a minimum capacity of the compressor.Type: GrantFiled: December 20, 2013Date of Patent: October 3, 2017Assignee: TRANE INTERNATIONAL INC.Inventors: John Zhou, Roger J. Voorhis, Thomas J. Clanin
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Publication number: 20170248340Abstract: Methods to regulate a discharge fan and a coil of a HVAC system are described. The method may include regulating a discharge air temperature of the cooling/heating coil of the HVAC system while maintain the discharge fan at a low capacity setting. The method may also include maintaining the coil at a low discharge air temperature (or a high discharge air temperature) setting, while varying a fan capacity of the discharge fan. The method may include a discharge capacity boost that includes decreasing (or elevating) the discharge air temperature limit of the coil beyond the low discharge air temperature (or the high discharge air temperature) limit. The methods as described herein may be applicable to a HVAC system that has variable airflow capability.Type: ApplicationFiled: May 15, 2017Publication date: August 31, 2017Inventors: John ZHOU, Thomas J. CLANIN
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Patent number: 9651321Abstract: A method for regulating a discharge fan and a coil of a heating, ventilation, and air conditioning (“HVAC”) system includes maintaining a discharge fan capacity at a low fan capacity setting and varying a coil discharge air temperature between a low discharge air temperature limit and a high discharge air temperature limit. The method also includes, when the coil discharge air temperature reaches the low discharge air temperature limit, varying a fan speed of the variable speed discharge fan between a low fan speed setting and a high fan speed setting so as to maintain a space temperature at a space temperature setpoint set for a space, while maintaining the coil discharge air temperature at the low discharge air temperature limit.Type: GrantFiled: November 11, 2013Date of Patent: May 16, 2017Assignee: TRANE INTERNATIONAL INC.Inventors: John Zhou, Thomas J. Clanin
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Patent number: 9495702Abstract: A method, system, and computer program product for updating an auction monitor display with highlighting or emphasis in the form of graphic data change indicators. The method commences by capturing a first set of auction variables, the auction variables pertaining to an ecommerce auction involving a plurality of auction participants in the ecommerce auction. Then, for ongoing real-time display, the method introduces a delay of a variable duration of time, the variable duration of time based on the length of time before the end of the auction. At various points within each delay period, the method captures a second set of auction variables which are compared to the first set of auction variables to identify a candidate set of changed auction variables for emphasis. The determination of the manner of emphasis is based on the changed auction variable and characteristics of the type of change of the changed auction variable.Type: GrantFiled: September 20, 2011Date of Patent: November 15, 2016Assignee: ORACLE INTERNATIONAL CORPORATIONInventors: Manish Srivastava, German Bertot, Matthew Sherman, Ramesh Kumar Reddy Jooturu Chinna, Gyanesh Hari Dwivedi, John Zhou
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Publication number: 20150337831Abstract: A system and method for controlling a system that includes a variable speed compressor are described. The method can provide improved accuracy in the control of a system, for example, a heating, ventilating, and air condition (HVAC) system that includes a variable speed compressor, and can reduce a compressor cycling frequency of the compressor when a required capacity is below a minimum capacity of the compressor.Type: ApplicationFiled: December 20, 2013Publication date: November 26, 2015Inventors: John ZHOU, Roger J. VOORHIS, Thomas J. CLANIN
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Publication number: 20140131009Abstract: Methods to regulate a discharge fan and a coil of a HVAC system are described. The method may include regulating a discharge air temperature of the cooling/heating coil of the HVAC system while maintain the discharge fan at a low capacity setting. The method may also include maintaining the coil at a low discharge air temperature (or a high discharge air temperature) setting, while varying a fan capacity of the discharge fan. The method may include a discharge capacity boost that includes decreasing (or elevating) the discharge air temperature limit of the coil beyond the low discharge air temperature (or the high discharge air temperature) limit. The methods as described herein may be applicable to a HVAC system that has variable airflow capability.Type: ApplicationFiled: November 11, 2013Publication date: May 15, 2014Applicant: TRANE INTERNATIONAL INC.Inventors: John ZHOU, Thomas J. CLANIN
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Publication number: 20130073409Abstract: A method, system, and computer program product for updating an auction monitor display with highlighting or emphasis in the form of graphic data change indicators. The method commences by capturing a first set of auction variables, the auction variables pertaining to an ecommerce auction involving a plurality of auction participants in the ecommerce auction. Then, for ongoing real-time display, the method introduces a delay of a variable duration of time, the variable duration of time based on the length of time before the end of the auction. At various points within each delay period, the method captures a second set of auction variables which are compared to the first set of auction variables to identify a candidate set of changed auction variables for emphasis. The determination of the manner of emphasis is based on the changed auction variable and characteristics of the type of change of the changed auction variable.Type: ApplicationFiled: September 20, 2011Publication date: March 21, 2013Inventors: Manish SRIVASTAVA, German BERTOT, Matthew SHERMAN, Ramesh Kumar Reddy Jooturu Chinna, Gyanesh Hari DWIVEDI, John ZHOU
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Publication number: 20080234423Abstract: A method of forming a composite panel or board includes the step of adding phyllosilicate clay to a thermosetting resin and natural fibres. The natural fibres include hardwood fibre, softwood fibre, grain straw, hemp fibre, kenaf fibre, bagasse fibre, palm fibre, canola straw fibre, flax straw fibre, rapeseed straw fibre, wheat straw fibre, oat straw fibre, barley straw fibre, rice straw fibre or rye straw fibre. The thermosetting resin may include phenol formaldehyde, urea formaldehyde, melamine formaldehyde, melamine urea formaldehyde, or methylenediphenyl diisocynanate. The phyllosilicate clay may include nanoparticulate clay and may include natural, modified or synthetic forms of sodium montmorillonite, montmorillonite, nontronite, beidellite, volkonskoite, laponite, hectorite, saponite, sauconite, magadite, kenyaite, stevensite, vermiculite, halloysite, or hydrotactite.Type: ApplicationFiled: March 20, 2008Publication date: September 25, 2008Applicant: ALBERTA RESEARCH COUNCIL INC.Inventors: Sunguo WANG, Hua QIU, John ZHOU, Rob WELLWOOD
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Publication number: 20070069186Abstract: A conductive polymer of polyaniline (PANi), tetracyanoquinodimethane (TCNQ) and a transferrin family member. The conductive polymer can be used in conductometric assays, including biosensor devices. One particular transferrin family member provided in the polymer is lactoferrin.Type: ApplicationFiled: September 22, 2006Publication date: March 29, 2007Applicant: Board of Trustees of Michigan State UniversityInventors: Evangelyn Alocilja, John Zhou