Patents by Inventor Thomas West
Thomas West 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: 11981802Abstract: The invention provides a composition comprising a first composition, comprising a first ethylene/alpha-olefin/non-conjugated polyene and a second ethylene ethylene/alpha-olefin/non-conjugated polyene, and wherein the first composition comprises the following property: Mw>1389.6 [g/mole] MV+115,000 g/mole, wherein MV is the Mooney Viscosity (ML 1+4, 125 C), and Mw N is the weight average molecular weight, as determined by conventional GPC.Type: GrantFiled: June 29, 2017Date of Patent: May 14, 2024Assignee: Dow Global Technologies LLCInventors: Colin LiPiShan, Juan C. Tuberquia, Guang Ming Li, Timothy E. Clayfield, Lena T. Nguyen, Edward O. Madenjian, Cory M. Thomas West, Alexandra E. Frankel
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Patent number: 11261319Abstract: A composition composed of at least a first ethylene/?-olefin/nonconjugated polyene interpolymer, which can be used to produce low compression set, foamed rubber materials, articles made from the composition, and methods of producing the composition and articles.Type: GrantFiled: December 26, 2016Date of Patent: March 1, 2022Assignee: Dow Global Technologies LLCInventors: Colin LiPiShan, Juan C. Tuberquia, Teresita Kashyap, Isao Hattori, Tao Han, Cory M. Thomas West
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Patent number: 11219982Abstract: A method and systems for controlling optical transmissivity of a polish pad material are provided. The method and systems may include adjusting control parameters to determine the optical transmissivity of a polish pad material. The control parameters may also include pre-processing controls, casting controls, and/or curing controls. Methods and systems also provided for assembling a polish pad that controls the optical transmissivity of the polish pad. Additionally, a polish pad with a controlled optical transmissivity is provided.Type: GrantFiled: July 5, 2018Date of Patent: January 11, 2022Assignee: Thomas West, Inc.Inventors: Thomas West, Gary Quigley, Pepito Galvez, Peter McKeever, Suli Holani
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Patent number: 11090778Abstract: A method for making a polishing pad includes rotating a cylinder about a central axis. The cylinder encloses in an interior space a polymer mixture. The method also includes forming the polishing pad from at least some of a polymer formed after the polymer mixture has gelled. The rotating of the cylinder may be continued until the polymer has cured. The method may include forming at least two distinct layers in the polishing pad by casting and gelling sequentially at least two different polymer mixtures. A system for manufacturing a polishing pad includes a centrifugal caster adapted to rotate. A polishing pad made by a method is provided.Type: GrantFiled: April 1, 2013Date of Patent: August 17, 2021Assignee: Thomas West, Inc.Inventors: Thomas West, Peter McKeever, Kevin Song, Donald Dietz, Long Nguyen, Matt Richardson
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Publication number: 20210230414Abstract: The invention provides a composition comprising a first composition, comprising a first ethylene/alpha-olefin/non-conjugated polyene and a second ethylene ethylene/alpha-olefin/non-conjugated polyene, and wherein the first composition comprises the following property: Mw>1389.6 [g/mole] MV+115,000 g/mole, wherein MV is the Mooney Viscosity (ML 1+4, 125C), and Mw is the weight average molecular weight, as determined by conventional GPC.Type: ApplicationFiled: June 29, 2017Publication date: July 29, 2021Inventors: Colin LiPiShan, Juan C. Tuberquia, Guang Ming Li, Timothy E. Clayfield, Lena T. Nguyen, Edward O. Madenjian, Cory M. Thomas West, Alexandra E. Frankel
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Patent number: 10746448Abstract: A system includes a refrigerant compressor, an electric motor and configured to drive the refrigerant compressor, and a controller. The controller is configured to operate the compressor in a liquid clearing start mode where electrical current through the motor is prevented from exceeding a predetermined current limit for a period of time not to exceed a predetermined period of time, and is configured to operate the compressor in a run mode in response to determining the motor exceeds a predetermined speed threshold at or before expiration of the predetermined period of time, wherein the run mode does not prevent electrical current through the motor from exceeding said predetermined current limit.Type: GrantFiled: April 24, 2017Date of Patent: August 18, 2020Assignee: Trane International Inc.Inventors: Benjamin James Sykora, Nathan Thomas West, David Marshall Foye, Dennis Myron Beekman, Korwin Jay Anderson, Robert Bakkestuen
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Patent number: 10722997Abstract: A method for making a multilayer polishing pad includes rotating a cylinder about a central axis. The cylinder encloses in an interior space a single polymer mixture that phase separates under centrifugal force. The method also includes forming the polishing pad from at least some of a polymer formed after the polymer mixture has reacted. The method includes forming at least two distinct layers in the polishing pad by casting and gelling sequentially at least two different polymers.Type: GrantFiled: June 5, 2014Date of Patent: July 28, 2020Assignee: Thomas West, Inc.Inventors: Thomas West, Long Nguyen, Gary Quigley, Pepito Galvez, Koli Holani, Kevin Song, Jorge Craik, Matt Richardson, Peter McKeever
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Patent number: 10598551Abstract: Temperature value determination of at least one variable frequency drive component is provided. In one form, a method includes providing a variable frequency drive that includes a first component in thermal communication with a second component in thermal communication with a switching device. A temperature value of the second component is determined using a temperature value of the first component, a power loss characteristic of the drive, and a first characteristic of heat transfer between the first and second components. The method further includes sensing a temperature value of the second component and determining a temperature value for the switching device using the power loss characteristic, a second characteristic of heat transfer between the second component and the switching device, and the greater of the sensed and determined temperature values of the second component. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.Type: GrantFiled: August 6, 2018Date of Patent: March 24, 2020Assignee: Trane International Inc.Inventors: Benjamin James Sykora, Nathan Thomas West
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Publication number: 20190345318Abstract: A composition composed of at least a first ethylene/?-olefin/nonconjugated polyene interpolymer, which can be used to produce low compression set, foamed rubber materials, articles made from the composition, and methods of producing the composition and articles.Type: ApplicationFiled: December 26, 2016Publication date: November 14, 2019Inventors: Colin LiPiShan, Juan C. Tuberquia, Teresita Kashyap, Isao Hattori, Tao Han, Cory M. Thomas West
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Patent number: 10314200Abstract: Operation of a variable frequency in a manner configured to avoid overheating is provided. In one form, a method includes providing a variable frequency drive that includes a switching device in thermal communication with a heat sink including a thermal mass. The method further includes operating the drive in a first mode before active cooling of the heat sink is established and a second mode following the first mode. Operation of the drive in the first mode includes operating the switching device in a first switching frequency mode, and the first switching frequency mode and the thermal mass of the heat sink are selected to provide a temperature of the switching device below a predetermined threshold before active cooling of the heat sink is established. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.Type: GrantFiled: July 17, 2015Date of Patent: June 4, 2019Assignee: Trane International Inc.Inventors: Benjamin James Sykora, Nathan Thomas West, David Marshall Foye, Korwin Jay Anderson
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Patent number: 10295239Abstract: A system includes a refrigerant circuit including a compressor, a condenser, an expander, an electric motor configured to drive the compressor, and a controller configured to control a motor drive to drive the electric motor. The controller is configured to first evaluate whether the compressor is idle based upon a control state of the controller being configured not to operate the motor drive to drive the motor, second, in response to an affirmative evaluation that the compressor is idle, evaluate a risk of undesired or un-commanded compressor rotation based upon a combination of two or more system conditions, each of the two or more system conditions indicating the risk of undesired or un-commanded compressor rotation, and third, in response to an affirmative evaluation of the risk of undesired or un-commanded compressor rotation, control the motor drive to oppose rotation of the compressor.Type: GrantFiled: September 10, 2015Date of Patent: May 21, 2019Assignee: Trane International Inc.Inventors: Nathan Thomas West, Benjamin James Sykora, David Marshall Foye, Dennis Myron Beekman, Korwin Jay Anderson, Robert Bakkestuen
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Patent number: 10240839Abstract: An exemplary system includes a compressor, a condenser, an expander, and an evaporator fluidly coupled to form a vapor-compression circuit, and an electric motor configured to drive the compressor. An inverter having a plurality of switching elements is configured to provide an output voltage to the electric motor through operation of the switching elements. A waste heat recovery circuit is configured to transfer waste heat from the inverter to a load. A controller is configured provide switching commands to the switching elements of the inverter. The controller is further configured to sense a condition of the system, determine a heat production requirement based at least in part upon the system condition, and to vary the number of switching commands per unit time based at least in part upon the heat production requirement.Type: GrantFiled: September 10, 2015Date of Patent: March 26, 2019Assignee: Trane International LLC.Inventors: Benjamin James Sykora, Nathan Thomas West, Pavak Mehta
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Publication number: 20180348063Abstract: Temperature value determination of at least one variable frequency drive component is provided. In one form, a method includes providing a variable frequency drive that includes a first component in thermal communication with a second component in thermal communication with a switching device. A temperature value of the second component is determined using a temperature value of the first component, a power loss characteristic of the drive, and a first characteristic of heat transfer between the first and second components. The method further includes sensing a temperature value of the second component and determining a temperature value for the switching device using the power loss characteristic, a second characteristic of heat transfer between the second component and the switching device, and the greater of the sensed and determined temperature values of the second component. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.Type: ApplicationFiled: August 6, 2018Publication date: December 6, 2018Inventors: Nathan Thomas West, Benjamin James Sykora
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Patent number: 10141733Abstract: Overvoltage protection apparatuses, systems and methods for variable frequency motor drives are disclosed. In an exemplary embodiment, a variable frequency motor drive system including a rectifier, a DC bus electrically coupled with the rectifier, and an inverter electrically coupled with the DC bus is provided. A protection device electrically coupled with the rectifier and configured to interrupt power supply to the system based upon fault conditions is provided. A controller is provided and configured to receive information indicative of a voltage of the DC bus, process the received information to model a condition of at least one component of the variable frequency motor drive, and control the protection device to interrupt power supply to the variable frequency motor drive if the modeled condition meets a fault criterion.Type: GrantFiled: July 9, 2015Date of Patent: November 27, 2018Assignee: Trane International Inc.Inventors: Nathan Thomas West, David Marshall Foye, Korwin Jay Anderson
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Publication number: 20180311791Abstract: A method and systems for controlling optical transmissivity of a polish pad material are provided. The method and systems may include adjusting control parameters to determine the optical transmissivity of a polish pad material. The control parameters may also include pre-processing controls, casting controls, and/or curing controls. Methods and systems also provided for assembling a polish pad that controls the optical transmissivity of the polish pad. Additionally, a polish pad with a controlled optical transmissivity is provided.Type: ApplicationFiled: July 5, 2018Publication date: November 1, 2018Inventors: Thomas West, Gary Quigley, Pepito Galvez, Peter McKeever, Suli Holani
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Patent number: 10101070Abstract: Systems and methods are used to control operation of a rotary compressor of a refrigeration system to limit or prevent movement of rotors due to axial thrust loading resulting from rapid changes in speed of the rotors of the compressor. The operational profile of the motor is controlled to maintain acceleration torque and deceleration torque within predefined limits. The acceleration torque and deceleration torque are maintained within the predefined limits by controlling the speed of the motor, or by controlling the torque applied by the motor to the rotors during acceleration or deceleration.Type: GrantFiled: February 27, 2017Date of Patent: October 16, 2018Assignee: Trane International Inc.Inventors: Nathan Thomas West, Dennis Myron Beekman, David Marshall Foye, Korwin Jay Anderson, Benjamin James Sykora
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Patent number: 10041840Abstract: Temperature value determination of at least one variable frequency drive component is provided. In one form, a method includes providing a variable frequency drive that includes a first component in thermal communication with a second component in thermal communication with a switching device. A temperature value of the second component is determined using a temperature value of the first component, a power loss characteristic of the drive, and a first characteristic of heat transfer between the first and second components. The method further includes sensing a temperature value of the second component and determining a temperature value for the switching device using the power loss characteristic, a second characteristic of heat transfer between the second component and the switching device, and the greater of the sensed and determined temperature values of the second component. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.Type: GrantFiled: July 17, 2015Date of Patent: August 7, 2018Assignee: Trane International Inc.Inventors: Nathan Thomas West, Benjamin James Sykora
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Patent number: 10022842Abstract: A method and systems for controlling optical transmissivity of a polish pad material are provided. The method and systems may include adjusting control parameters to determine the optical transmissivity of a polish pad material. The control parameters may also include pre-processing controls, casting controls, and/or curing controls. Methods and systems also provided for assembling a polish pad that controls the optical transmissivity of the polish pad. Additionally, a polish pad with a controlled optical transmissivity is provided.Type: GrantFiled: February 19, 2015Date of Patent: July 17, 2018Assignee: Thomas West, Inc.Inventors: Thomas West, Gary Quigley, Pepito Galvez, Peter McKeever, Suli Holani
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Patent number: 10003287Abstract: Techniques for motor magnet degradation controls and diagnostics are disclosed. An exemplary technique determines q-axis current, d-axis current, q-axis voltage, and/or d-axis voltage of a permanent magnet motor based upon sensed current and voltage information of the motor. This information is utilized to determine flux information. The flux information is utilized in evaluating collective state conditions of a plurality of motor magnets and evaluating localized state conditions of a subset of the plurality of motor magnets. The evaluations can be used to identify degradation or damage to one or more of the magnets which may occur as a result of elevated temperature conditions, physical degradation, or chemical degradation.Type: GrantFiled: March 6, 2017Date of Patent: June 19, 2018Assignee: Trane International Inc.Inventors: Nathan Thomas West, David Marshall Foye
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Patent number: 9939795Abstract: A controller is configured to generate control signals to control a variable frequency drive coupled with a load. A simulator receives the control signals and processes the control signals. The simulator simulates a variable frequency drive and a load by generating feedback signals based on a model and the control signals. The controller receives the feedback signals from the simulator.Type: GrantFiled: January 24, 2014Date of Patent: April 10, 2018Assignee: Trane International Inc.Inventors: Korwin Jay Anderson, Nathan Thomas West