Patents by Inventor Kang P. Lee
Kang P. Lee 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: 11994321Abstract: The present disclosure relates to a new breed of high performance compressors and associated vapor compression systems that can be used in wide ranging refrigeration, cooling and heating applications with significantly increased compressor isentropic efficiency, motor efficiency, reliability and longevity of the motor, the compressor pump and the system as a whole, as well as COP, heating capacity, and SEER of the new vapor compression systems utilizing the new high performance compressors. The design philosophy and modifications to the current configuration of rolling piston rotary compressor to arrive at the high-performance version of the same type will be readily applicable to other types of vapor compression compressors with only minor changes opening the way for adoption of the new design philosophy by the entire compressor industry resulting in serious reduction of carbon footprint for air conditioners, heat pumps and refrigerators worldwide.Type: GrantFiled: January 3, 2020Date of Patent: May 28, 2024Assignee: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Douglas S. Olsen, Brian Callan
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Publication number: 20230313797Abstract: This disclosure describes new horizontal roller-piston/vane type rotary compressors with novel features such as new lubricating oil circuit designs to provide reliable oil lubrication, and increase tiltability during operation. Also new multi-pump configurations of horizontal compressors are introduced in order to significantly increase redundancy, reliability, and turn down ratio. Rotary compressors may be configured with subsets of the disclosed features to configure those compressors for specific applications.Type: ApplicationFiled: April 10, 2023Publication date: October 5, 2023Applicant: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Kevin Olsen
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Patent number: 11655820Abstract: This disclosure describes new horizontal roller-piston/vane type rotary compressors with novel features such as new lubricating oil circuit designs to provide reliable oil lubrication, and increase tiltability during operation. Also new multi-pump configurations of horizontal compressors are introduced in order to significantly increase redundancy, reliability, and turn down ratio. Rotary compressors may be configured with subsets of the disclosed features to configure those compressors for specific applications.Type: GrantFiled: February 3, 2021Date of Patent: May 23, 2023Assignee: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Kevin Olsen
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Patent number: 11614086Abstract: Aspects described herein relate generally to rotary compressors that incorporate a flywheel within to significantly reduce the compressor vibration and drive torque ripples as well as to achieve a higher overall electro-mechanical efficiency and potentially lower combined costs of BLDC rotary compressors and their drive electronics.Type: GrantFiled: December 29, 2017Date of Patent: March 28, 2023Assignee: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Douglas S. Olsen
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Publication number: 20220090829Abstract: The present disclosure relates to a new breed of high performance compressors and associated vapor compression systems that can be used in wide ranging refrigeration, cooling and heating applications with significantly increased compressor isentropic efficiency, motor efficiency, reliability and longevity of the motor, the compressor pump and the system as a whole, as well as COP, heating capacity, and SEER of the new vapor compression systems utilizing the new high performance compressors. The design philosophy and modifications to the current configuration of rolling piston rotary compressor to arrive at the high-performance version of the same type will be readily applicable to other types of vapor compression compressors with only minor changes opening the way for adoption of the new design philosophy by the entire compressor industry resulting in serious reduction of carbon footprint for air conditioners, heat pumps and refrigerators worldwide.Type: ApplicationFiled: January 3, 2020Publication date: March 24, 2022Applicant: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Douglas S. Olsen, Brian Callan
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Publication number: 20210239118Abstract: This disclosure describes new horizontal roller-piston/vane type rotary compressors with novel features such as new lubricating oil circuit designs to provide reliable oil lubrication, and increase tiltability during operation. Also new multi-pump configurations of horizontal compressors are introduced in order to significantly increase redundancy, reliability, and turn down ratio. Rotary compressors may be configured with subsets of the disclosed features to configure those compressors for specific applications.Type: ApplicationFiled: February 3, 2021Publication date: August 5, 2021Applicant: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Kevin Olsen
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Publication number: 20200300247Abstract: The present disclosure relates to a low noise, compact rotary compressor configured to damp noise and vibration generated from internal components. The compressor may include a stator holder coupled to the stator and the pump, providing physical separation between the stator and the casing. The compressor may also include a pump holder coupled to the pump and the casing, providing physical separation between the pump and the casing. Additional damping components may be placed at various coupling points within and around the stator holder and/or pump holder. The suction line connection may also be configured to reduce noise and vibration. Aspects of the present disclosure may be applicable for reducing the noise and vibration in a number of fluid displacement devices and BLDC motors.Type: ApplicationFiled: June 1, 2020Publication date: September 24, 2020Applicant: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Douglas S. Olsen
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Patent number: 10670017Abstract: The present disclosure relates to a low noise, compact rotary compressor configured to damp noise and vibration generated from internal components. The compressor may include a stator holder coupled to the stator and the pump, providing physical separation between the stator and the casing. The compressor may also include a pump holder coupled to the pump and the casing, providing physical separation between the pump and the casing. Additional damping components may be placed at various coupling points within and around the stator holder and/or pump holder. The suction line connection may also be configured to reduce noise and vibration. Aspects of the present disclosure may be applicable for reducing the noise and vibration in a number of fluid displacement devices and BLDC motors.Type: GrantFiled: December 1, 2014Date of Patent: June 2, 2020Assignee: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Douglas S. Olsen
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Publication number: 20190338772Abstract: Aspects described herein relate generally to rotary compressors that incorporate a flywheel within to significantly reduce the compressor vibration and drive torque ripples as well as to achieve a higher overall electro-mechanical efficiency and potentially lower combined costs of BLDC rotary compressors and their drive electronics.Type: ApplicationFiled: December 29, 2017Publication date: November 7, 2019Applicant: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Douglas S. Olsen
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Publication number: 20160305431Abstract: The present disclosure relates to a low noise, compact rotary compressor configured to damp noise and vibration generated from internal components. The compressor may include a stator holder coupled to the stator and the pump, providing physical separation between the stator and the casing. The compressor may also include a pump holder coupled to the pump and the casing, providing physical separation between the pump and the casing. Additional damping components may be placed at various coupling points within and around the stator holder and/or pump holder. The suction line connection may also be configured to reduce noise and vibration. Aspects of the present disclosure may be applicable for reducing the noise and vibration in a number of fluid displacement devices and BLDC motors.Type: ApplicationFiled: December 1, 2014Publication date: October 20, 2016Applicant: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, Douglas S. Olsen
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Patent number: 7789202Abstract: Disclosed is a pressurized internal oil management system, comprising an oil dam, at least one oil separator, at least one oil collection manifold, at least one oil pump, and one or more paths for returning the separated oil; said system integrated within the casing of a fluid displacement device to supply adequate lubrication regardless of orientations under zero to full gravity, and methods and applications related thereto. Fluid displacement devices useful herein include oil lubricated rotary or reciprocating machinery, such as compressors, expanders, pumps and engines, in the casing of which exists one or more drive mechanisms that can be utilized to operate the oil management system, in most cases without even increasing the size of the casing.Type: GrantFiled: September 26, 2007Date of Patent: September 7, 2010Assignee: Aspen Compressor, LLC.Inventors: Kang P. Lee, William Gronemeyer
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Patent number: 7780890Abstract: The present invention provides various methods for producing gel sheets in a continuous fashion. The embodiments of the present invention help reduce the time of producing gel sheets that is suitable for industrial manufacturing. Such gel sheets are used in manufacturing aerogel blankets used in a variety of applications including thermal and acoustic insulation.Type: GrantFiled: June 13, 2007Date of Patent: August 24, 2010Assignee: Aspen Aerogels, Inc.Inventors: Kang P Lee, George L Gould, William Gronemeyer, Christopher John Stepanian
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Patent number: 7560062Abstract: This invention discloses improvements that can be achieved in thermal or mechanical performance of aerogel composites via densification. Densified aerogels and aerogel composites can display higher compressive strength, modulus, flexural strength, and maintains or insubstantially increases the thermal conductivity relative to the pre-densified form. In the special case of fiber reinforced aerogel composites densification via mechanical compression can prove highly beneficial.Type: GrantFiled: July 12, 2005Date of Patent: July 14, 2009Assignee: Aspen Aerogels, Inc.Inventors: George L. Gould, Je Kyun Lee, Christopher J. Stepanian, Kang P. Lee
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Patent number: 7399439Abstract: The present invention provides various methods for producing gel sheets in a continuous fashion. The embodiments of the present invention help reduce the time of producing gel sheets that is suitable for industrial manufacturing. Such gel sheets are used in manufacturing aerogel blankets used in a variety of applications including thermal and acoustic insulation.Type: GrantFiled: June 23, 2004Date of Patent: July 15, 2008Assignee: Aspen Aerogels, Inc.Inventors: Kang P. Lee, George L. Gould, William Gronemeyer, Christopher John Stepanian
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Publication number: 20080087315Abstract: Disclosed is a thermoelectric fan for use with radiant heaters, particularly catalytic heaters. The thermoelectric fan of the present invention comprises a housing sub-assembly coupled to a thermal plate sub-assembly, the housing sub-assembly comprising a shrouded circulating air moving member, such as a fan blade, powered solely by the conversion of heat from a separate heater into electricity via an integrated thermoelectric module. Also disclosed is a self-powered fan that can safely perform in hazardous atmospheres while converting radiant heat to circulate air. The thermoelectric fan of the present invention ensures that the air within the space to be heated is more effectively distributed and temperature gradients are minimized. Also disclosed are methods for assembling, installing and safe operation of the thermoelectric fan.Type: ApplicationFiled: October 12, 2007Publication date: April 17, 2008Applicant: ASPEN SYSTEMS, INC.Inventors: Glenn I. Deming, Timothy R. Membrino, Roger Wood, Douglas S. Olsen, Kang P. Lee, S. Ronald Wysk
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Publication number: 20080078618Abstract: Disclosed is a pressurized internal oil management system, comprising an oil dam, at least one oil separator, at least one oil collection manifold, at least one oil pump, and one or more paths for returning the separated oil; said system integrated within the casing of a fluid displacement device to supply adequate lubrication regardless of orientations under zero to full gravity, and methods and applications related thereto. Fluid displacement devices useful herein include oil lubricated rotary or reciprocating machinery, such as compressors, expanders, pumps and engines, in the casing of which exists one or more drive mechanisms that can be utilized to operate the oil management system, in most cases without even increasing the size of the casing.Type: ApplicationFiled: September 26, 2007Publication date: April 3, 2008Applicant: ASPEN COMPRESSOR, LLCInventors: Kang P. Lee, William Gronemeyer
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Patent number: 7309416Abstract: Sulfur is removed from a hydrocarbon fuel via contact with a desulfurization agent; the desulfurization agent is then regenerated (wherein sulfur is released) by exposing it to oxygen. The sulfur removal and regeneration processes each can be carried out at relatively moderate temperatures, e.g., from 300 to 600° C., and pressure, e.g., about 0.79 to about 3.5 MPa; and the desulfurization agent can include a transition metal oxide, such as molybdenum oxide. The process can also include the additional steps of cracking the hydrocarbon, separating high-boiling and low-boiling fractions from the reaction product and contacting the lower-boiling fraction with a secondary desulfurization agent.Type: GrantFiled: July 11, 2003Date of Patent: December 18, 2007Assignee: Aspen Products Group, Inc.Inventors: Mark D. Fokema, Wendell E. Rhine, Neng Ye, Kang P. Lee, Jennifer P. Gordon
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Patent number: 6994842Abstract: Drugs in the form of very fine highly porous aerogel particles are delivered to a patient via inhalation. The aerogel particles are either an aerogelized form of a pharmaceutical or deposited upon aerogel particles produced from a non-inorganic oxide carrier matrix material, e.g. a sugar or carbohydrate. The aerogel particles are readily dissolvable by the pulmonary surfactant present in the lungs of a mammal.Type: GrantFiled: December 21, 2001Date of Patent: February 7, 2006Assignee: Aspen Aerogels, Inc.Inventors: Kang P. Lee, George L. Gould
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Patent number: 6989123Abstract: The present invention provides various methods for producing gel sheets in a continuous fashion. The embodiments of the present invention help reduce the time of producing gel sheets that is suitable for industrial manufacturing. Such gel sheets are used in manufacturing aerogel blankets used in a variety of applications including thermal and acoustic insulation.Type: GrantFiled: February 18, 2005Date of Patent: January 24, 2006Assignee: Aspen Aerogels, Inc.Inventors: Kang P. Lee, George L. Gould, William Gronemeyer, Christopher John Stepanian
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Publication number: 20040087670Abstract: Methods of more rapidly producing aerogel products by means of a rapid solvent exchange of solvent inside wet gels with supercritical CO2 by injecting supercritical, rather than liquid, CO2 into an extractor that has been pre-heated and pre-pressurized to substantially supercritical conditions or above. Preferably, pressure waves are applied to the supercritical CO2 to enhance the solvent exchange. The rapid solvent exchange process is followed by depressurization, optionally with a gas exchange. Preferably, pressure waves are used to speed up the depressurization. The process greatly reduces the time for forming aerogel products.Type: ApplicationFiled: July 16, 2003Publication date: May 6, 2004Inventors: Kang P. Lee, Redouane Begag, Zlatko Altiparmakov