Patents by Inventor William Stewart
William Stewart 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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Publication number: 20200039323Abstract: A vapor injection heat pump includes a compressor, a first valve directing a refrigerant of the compressor to a first or second heat exchanger dependent upon a mode of operation, an expansion device receiving the refrigerant from at least one of the heat exchangers, a vapor generator receiving an expanded liquid/vapor refrigerant mix from the first expansion device and directing a vapor component to a first input port of the compressor and a liquid component to at least one of the second heat exchanger and a third heat exchanger, via controlling a second valve, a second expansion device, a third expansion device, and a third valve. A second input of the compressor receives an output refrigerant from at least one of the second heat exchanger and the third heat exchanger dependent upon the mode of operation.Type: ApplicationFiled: October 9, 2019Publication date: February 6, 2020Inventors: Jing He, Loren John Lohmeyer, III, Manfred Koberstein, William Stewart Johnston, Angelo Patti
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Patent number: 10465952Abstract: A vapor injection heat pump includes a coolant loop and a refrigerant loop. The refrigerant loop includes a compressor, a valve directing a refrigerant of the compressor to a first or second heat exchanger dependent upon a mode of operation, an expansion device receiving the refrigerant from at least one of the heat exchangers, a separator receiving an expanded liquid/vapor refrigerant mix from the expansion device and directing a vapor component to a first input port of the compressor and a liquid component to a second valve. The second valve directs the liquid component to the heat exchangers, dependent upon the mode, and an accumulator receives an output refrigerant of the heat exchangers dependent upon the mode and directs a vapor component to a second input port of the compressor. A control module controls a pump in the coolant loop and the first and second valves dependent upon the mode.Type: GrantFiled: November 2, 2017Date of Patent: November 5, 2019Assignee: Ford Global Technologies, LLCInventors: Jing He, Loren John Lohmeyer, III, Manfred Koberstein, William Stewart Johnston, Angelo Patti
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Publication number: 20190291540Abstract: A vehicle thermal management system including an electric powertrain, a single thermal loop, and a controller is provided. The electric powertrain includes a high voltage battery. The single thermal loop is for managing thermal conditions of the high voltage battery and a vehicle cabin and may include a climate control system, a blower, and a front evaporator in fluid communication with the vehicle cabin. The controller is programmed to, responsive to detection of a climate control system off request, output a command to direct the blower to push air through a heater core to the vehicle cabin at a predetermined temperature such that a temperature within the vehicle cabin is maintained at a predetermined temperature and refrigerant continues to flow through the front evaporator. The system may include a vehicle cabin temperature sensor and an ambient temperature sensor, each in electrical communication with the controller.Type: ApplicationFiled: March 21, 2018Publication date: September 26, 2019Applicant: Ford Global Technologies, LLCInventors: Alan Gutowski, Curtis Mark Jones, William Stewart Johnston, Manfred Koberstein
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Patent number: 10405712Abstract: A cleaning apparatus for use in explosive atmospheres is disclosed, the cleaning apparatus being configured to conduct to earth any electrostatic charges generated in the components of the apparatus thereby preventing electrostatic discharge. The apparatus comprises a flexible hose member comprised of an electrically conductive material and having first and second open ends, the hose member being suitable for attachment at its first end to a port of an associated suction unit to mechanically and electrically couple said hose thereto; and a substantially rigid tubular pole member comprised of an electrically conductive material and having first and second open ends, said pole member being mechanically and electrically coupled at said first end to the second end of said hose member.Type: GrantFiled: September 23, 2016Date of Patent: September 10, 2019Assignee: SPACE VAC TECHNOLOGIES GROUP LIMITEDInventors: Andrew Collar, William Stewart Prince
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Patent number: 10403946Abstract: A climate-control system for a vehicle includes a refrigerant subsystem having a chiller and an electronic expansion valve (EXV) arranged to selectively route refrigerant to the chiller. The vehicle further includes a coolant subsystem having conduit arranged to circulate coolant through a traction battery and the chiller. The coolant subsystem further includes a first temperature sensor configured to measure coolant circulating into an inlet side of the chiller and a second temperature sensor configured to measure coolant circulating out of an outlet side of the chiller. A vehicle controller is configured to, in response to the battery exceeding a threshold temperature and cabin air conditioning being requested, command opening of the EXV to a predetermined position and adjust the position based on a measured coolant temperature difference between the first temperature sensor and the second temperature sensor.Type: GrantFiled: June 14, 2016Date of Patent: September 3, 2019Assignee: Ford Global Technologies, LLCInventors: Ali Jalilevand, Jan Xu, Steven L. Lambert, William Stewart Johnston, Timothy Van Evans, Mark C. Evans
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Publication number: 20190226737Abstract: A vehicle heat pump system including a thermal loop, an eight-way valve, and a controller is provided. The thermal loop includes a compressor, a first portion, and a second portion. The first portion includes an outside heat exchanger. The second portion includes a cabin heat exchanger. The eight-way valve is downstream of the compressor and has a first position in which refrigerant flows within the portions in a cooling mode and a second position in which refrigerant flows within the portions in a heating mode. The controller switches the eight-way valve between the first and second positions. The outside heat exchanger operates as a condenser in the cooling mode and the eight-way valve directs refrigerant flow from the outside heat exchanger to the cabin heat exchanger.Type: ApplicationFiled: January 23, 2018Publication date: July 25, 2019Applicant: Ford Global Technologies, LLCInventors: Jing He, Loren John Lohmeyer, William Stewart Johnston, Angelo Patti
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Patent number: 10350966Abstract: A vehicle heating and cooling system includes a compressor(s) for compressing a fluid in a cycle including at least two compressions, and a control module for controlling the compressor dependent upon an ambient condition. The module controls a power of the compressor by adjusting a motor speed driving the compressor and/or a pressure drop of the fluid moving through expansion devices. The pressure drop is controlled by changing a size of an opening in the expansion devices. A related method includes compressing a fluid in a first and a second compression cycle, determining an ambient temperature, sensing a temperature of the fluid outlet from a first heat exchanger, sensing a temperature and a pressure of the fluid outlet from a second heat exchanger, calculating a desired power of the compressor based thereon, and adjusting a parameter of the compressor dependent upon the calculated desired power of the compressor.Type: GrantFiled: August 11, 2015Date of Patent: July 16, 2019Assignee: Ford Global Technologies, LLCInventors: Jing He, Debasish Dhar, William Stewart Johnston, Loren John Lohmeyer, III
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Patent number: 10331896Abstract: In a general aspect, a method of generating a protected implementation of an algorithm includes: expanding an original source code implementing the algorithm into a single set of real operations; combining each real operation using real data with the real data it uses, to obtain a combination represented in a way which uses an actual real data fragment in a form different from an original form; producing a set of duplicated and mutated decoy operations representing an alternative implementation of the algorithm, applied to decoy data; combining the set of decoy operations with the set of real operations including the combinations, to obtain an implementation where the decoy operations interact with the real operations and the real data processed by the real operations, such that a real data flow of in the implementation is difficult to analyze; and transforming the implementation into a resulting code that can be executed.Type: GrantFiled: July 18, 2016Date of Patent: June 25, 2019Assignee: INSIDE SECUREInventor: Neil William Stewart
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Patent number: 10308633Abstract: This invention provides novel processes for the preparation of compounds such as 3-[(1S,2S)-2-hydroxycyclohexyl]-6-[(6-methylpyridin-3-yl)methyl]benzo[h]-quinazolin-4(3H)-one, salts and derivatives thereof. The compounds synthesized by the processes of the invention are useful for treating Alzheimer's disease and other diseases (e.g., cognitive impairment, schizophrenia, pain disorders, and sleep disorders) mediated by the muscarinic M1 receptor.Type: GrantFiled: September 26, 2016Date of Patent: June 4, 2019Assignees: Merck Sharp & Dohme Corp., Merck Sharp & Dohme LimitedInventors: Qinghao Chen, Shane W. Krska, Lushi Tan, Peter E. Maligres, Jeremy Scott, Carl Baxter, Gavin William Stewart, Andrew Gibb
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Publication number: 20190143787Abstract: A method for defogging a window of a vehicle includes steps of determining a risk of window fogging and automatically selecting a climate control system operating mode according to that determined risk of window fogging. The climate control system operating mode is selected from: an outside air mode, an air-conditioning mode, and a defrost mode. A controller determines the risk of window fogging according to one or more inputs, and the same or a different controller may automatically select the climate control system operating mode.Type: ApplicationFiled: November 15, 2017Publication date: May 16, 2019Inventors: Alan Gutowski, Manfred Koberstein, William Stewart Johnston
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Publication number: 20190128573Abstract: A vapor injection heat pump includes a coolant loop and a refrigerant loop. The refrigerant loop includes a compressor, a valve directing a refrigerant of the compressor to a first or second heat exchanger dependent upon a mode of operation, an expansion device receiving the refrigerant from at least one of the heat exchangers, a separator receiving an expanded liquid/vapor refrigerant mix from the expansion device and directing a vapor component to a first input port of the compressor and a liquid component to a second valve. The second valve directs the liquid component to the heat exchangers, dependent upon the mode, and an accumulator receives an output refrigerant of the heat exchangers dependent upon the mode and directs a vapor component to a second input port of the compressor. A control module controls a pump in the coolant loop and the first and second valves dependent upon the mode.Type: ApplicationFiled: November 2, 2017Publication date: May 2, 2019Inventors: Jing He, Loren John Lohmeyer, III, Manfred Koberstein, William Stewart Johnston, Angelo Patti
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Publication number: 20190118613Abstract: A vehicular climate control system may include a coolant subsystem configured to circulate coolant between an engine, a thermal generator, and a cabin heat exchanger, and a controller. The controller may be configured to, responsive to an air inlet temperature of the heat exchanger exceeding a threshold, retard engine spark timing to increase heat generation. The threshold may be defined by a quotient of (i) a difference between a discharge temperature target and the air inlet temperature and (ii) a thermal effectiveness parameter that is based on an air flow rate and a coolant flow rate.Type: ApplicationFiled: October 19, 2017Publication date: April 25, 2019Inventors: Franco Ragazzi, James George Gebbie, Donald Peter Schneider, III, Alan Douglas Wallington, William Stewart Johnston
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Publication number: 20190111761Abstract: A method of operating a vehicle climate system when an ambient temperature is below a threshold temperature is provided. In response to an ambient temperature being less than a threshold temperature, a controller is adapted to operate a blower motor at a voltage that depends on whether the vehicle is in charge sustain mode or charge deplete mode. In response to an ambient temperature being greater than a threshold temperature, the controller is adapted to operate the blower motor at a voltage that does not depend on whether in the charge sustain or charge deplete modes.Type: ApplicationFiled: October 12, 2017Publication date: April 18, 2019Inventors: Jasbir JAGLAN, William Stewart JOHNSTON, Alan Douglas WALLINGTON, Curtis Mark JONES, Chris George OEHRING, Mark G. SMITH
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Patent number: 10222383Abstract: The present invention provides methods and compositions for detecting Mycoplasma exposure in a subject.Type: GrantFiled: January 27, 2017Date of Patent: March 5, 2019Assignee: Advanced Animal Diagnostics, Inc.Inventors: Robert L. Campbell, Melissa E. Langer, Jasper N. Pollard, Robert L. Cheek, Kevin G. Dolan, W. William Stewart, Stefano Bresolin, John Richard Sink, Tobias M. Heineck, Laura A. Black, Nathan F. Pope, Lauren K. Parker, Erik J. Jensen, Jorge Carlos Correa, Reha O. Azizoglu
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Publication number: 20190032508Abstract: An optical monitoring system includes a controller configured to determine a predicted status of a component based on an operational time of a rotary machine and an individual model. The controller is also configured to receive a first signal indicative of an infrared spectrum image of the component from one or more cameras. Further, the controller is configured to determine a current status of the component based on the first signal and compare the current status to the predicted status of the component. Additionally, the controller is configured to update the predicted status of the component such that the predicted status matches the current status of the component and update at least one parameter of the individual model of the component based on the comparison.Type: ApplicationFiled: July 26, 2017Publication date: January 31, 2019Inventors: Guanghua Wang, Daniel Endecott Osgood, William Stewart, Jason Edward Dees, Eric John Ruggiero
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Patent number: 10139095Abstract: Embodiments of a lamp that utilizes a reflector and a light source with light-emitting diode (LED) devices to generate an optical intensity distribution substantially similar to that of a conventional incandescent light bulb. These embodiments utilize an operation configuration with parameters that define relationships between components of the lamp to generate the optical intensity distribution. These parameters can, in one example, set out the position of the reflector relative to the light source as well as the ratio between dimensions of the reflector and the light source. In one embodiment, the reflector is in position relative to the light source to form a blocking area proximate the light source that defines a part of the lamp that does not diffuse light.Type: GrantFiled: November 10, 2014Date of Patent: November 27, 2018Assignee: GE Lighting Solutions, LLCInventors: Benjamin Lee Yoder, William Stewart Johnson, Roderick Fitzgerald Rebman, Glenn Howard Kuenzler, Mark J. Mayer, Jeyachandrabose Chinniah
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Patent number: 10095663Abstract: A system and process are disclosed for providing users with page previews during page loading events, such that the delay experienced before the display of page content is reduced. The previews may include screenshots of the pages or of portions thereof, and may be generated periodically and cached by the system for delivery to user devices. The process of generating and delivering the previews via the Internet or some other network may be implemented partly or wholly within an intermediary system that sits logically between the user devices and content servers. The process may be used with existing browsers without the need for any browser modifications, or may be used with a “preview-aware” browser that includes special program code for providing page previews.Type: GrantFiled: March 15, 2013Date of Patent: October 9, 2018Assignee: Amazon Technologies, Inc.Inventors: Rohit Krishna Kumar, Scott Zachary Bressler, Ivan King Yu Sham, Ian William Stewart, Brett Richard Taylor, Peter Frank Hill, Aakarsh Nair, Steven Michael Reddie, Patrick Joseph Armstrong, Samuel John Young, Ameet Nirmal Vaswani, Andrew Lynch Hayden
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Publication number: 20180285704Abstract: Surgical articles, such as sponges, are provided in a pack which contains individual surgical articles having UHF RFID or other electronic labels which provide both (a) unique identification information for each article as well as (b) unique identification information for all articles in the pack. Prior to the surgical procedure, the labels are scanned and the identification information for all articles in the pack uploaded to a processor to create a list of available individual surgical articles. At the end of the surgical procedure, the surgical articles are collected and the electronic labels read and compared to the initial list to determine if there are any unaccounted individual surgical articles. The UHF RFID tag may then be used to determine a location of the unaccounted article outside the patient's body.Type: ApplicationFiled: April 3, 2018Publication date: October 4, 2018Inventors: Brian E. Stewart, William Stewart, Jan Svoboda
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Publication number: 20180265043Abstract: A proximity switch assembly with humidity sensing is provided that includes a proximity sensor providing an activation field and control circuitry monitoring a signal responsive to the activation field, determining a switch activation based on the signal, and determining a humidity value based on the signal.Type: ApplicationFiled: March 14, 2017Publication date: September 20, 2018Inventors: Stuart C. Salter, Pietro Buttolo, Manfred Koberstein, Paul Kenneth Dellock, William Stewart Johnston, Todd Jared Konet
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Publication number: 20180265493Abstract: This invention provides novel processes for the preparation of compounds such as 3-[(1S,2S)-2-hydroxycyclohexyl]-6-[(6-methylpyridin-3-yl)methyl]benzo[h]-quinazolin-4(3H)-one, salts and derivatives thereof. The compounds synthesized by the processes of the invention are useful for treating Alzheimer's disease and other diseases (e.g., cognitive impairment, schizophrenia, pain disorders, and sleep disorders) mediated by the muscarinic M1 receptor.Type: ApplicationFiled: September 26, 2016Publication date: September 20, 2018Applicants: Merck Sharp & Dohme Corp., Merck Sharp & Dohme Limited.Inventors: Qinghao Chen, Shane W. Krska, Lushi Tan, Peter E. Maligres, Jeremy Scott, Carl Baxter, Gavin William Stewart, Andrew Gibb