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).

  • Publication number: 20230313797
    Abstract: 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: Application
    Filed: April 10, 2023
    Publication date: October 5, 2023
    Applicant: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Kevin Olsen
  • Patent number: 11655820
    Abstract: 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: Grant
    Filed: February 3, 2021
    Date of Patent: May 23, 2023
    Assignee: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Kevin Olsen
  • Patent number: 11614086
    Abstract: 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: Grant
    Filed: December 29, 2017
    Date of Patent: March 28, 2023
    Assignee: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Douglas S. Olsen
  • Publication number: 20220090829
    Abstract: 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: Application
    Filed: January 3, 2020
    Publication date: March 24, 2022
    Applicant: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Douglas S. Olsen, Brian Callan
  • Publication number: 20210239118
    Abstract: 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: Application
    Filed: February 3, 2021
    Publication date: August 5, 2021
    Applicant: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Kevin Olsen
  • Publication number: 20200300247
    Abstract: 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: Application
    Filed: June 1, 2020
    Publication date: September 24, 2020
    Applicant: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Douglas S. Olsen
  • Patent number: 10670017
    Abstract: 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: Grant
    Filed: December 1, 2014
    Date of Patent: June 2, 2020
    Assignee: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Douglas S. Olsen
  • Publication number: 20190338772
    Abstract: 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: Application
    Filed: December 29, 2017
    Publication date: November 7, 2019
    Applicant: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Douglas S. Olsen
  • Publication number: 20160305431
    Abstract: 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: Application
    Filed: December 1, 2014
    Publication date: October 20, 2016
    Applicant: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, Douglas S. Olsen
  • Patent number: 7789202
    Abstract: 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: Grant
    Filed: September 26, 2007
    Date of Patent: September 7, 2010
    Assignee: Aspen Compressor, LLC.
    Inventors: Kang P. Lee, William Gronemeyer
  • Patent number: 7780890
    Abstract: 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: Grant
    Filed: June 13, 2007
    Date of Patent: August 24, 2010
    Assignee: Aspen Aerogels, Inc.
    Inventors: Kang P Lee, George L Gould, William Gronemeyer, Christopher John Stepanian
  • Patent number: 7560062
    Abstract: 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: Grant
    Filed: July 12, 2005
    Date of Patent: July 14, 2009
    Assignee: Aspen Aerogels, Inc.
    Inventors: George L. Gould, Je Kyun Lee, Christopher J. Stepanian, Kang P. Lee
  • Patent number: 7399439
    Abstract: 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: Grant
    Filed: June 23, 2004
    Date of Patent: July 15, 2008
    Assignee: Aspen Aerogels, Inc.
    Inventors: Kang P. Lee, George L. Gould, William Gronemeyer, Christopher John Stepanian
  • Publication number: 20080087315
    Abstract: 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: Application
    Filed: October 12, 2007
    Publication date: April 17, 2008
    Applicant: ASPEN SYSTEMS, INC.
    Inventors: Glenn I. Deming, Timothy R. Membrino, Roger Wood, Douglas S. Olsen, Kang P. Lee, S. Ronald Wysk
  • Publication number: 20080078618
    Abstract: 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: Application
    Filed: September 26, 2007
    Publication date: April 3, 2008
    Applicant: ASPEN COMPRESSOR, LLC
    Inventors: Kang P. Lee, William Gronemeyer
  • Patent number: 7309416
    Abstract: 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: Grant
    Filed: July 11, 2003
    Date of Patent: December 18, 2007
    Assignee: Aspen Products Group, Inc.
    Inventors: Mark D. Fokema, Wendell E. Rhine, Neng Ye, Kang P. Lee, Jennifer P. Gordon
  • Patent number: 6994842
    Abstract: 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: Grant
    Filed: December 21, 2001
    Date of Patent: February 7, 2006
    Assignee: Aspen Aerogels, Inc.
    Inventors: Kang P. Lee, George L. Gould
  • Patent number: 6989123
    Abstract: 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: Grant
    Filed: February 18, 2005
    Date of Patent: January 24, 2006
    Assignee: Aspen Aerogels, Inc.
    Inventors: Kang P. Lee, George L. Gould, William Gronemeyer, Christopher John Stepanian
  • Publication number: 20040087670
    Abstract: 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: Application
    Filed: July 16, 2003
    Publication date: May 6, 2004
    Inventors: Kang P. Lee, Redouane Begag, Zlatko Altiparmakov
  • Patent number: 6729042
    Abstract: A method is described for enhancing mass and heat transport of fluids in a fine pore structure through an appropriate modulation of the fluid pressure. For example, in an air drying process for a porous material that contains liquid, the air pressure is modulated throughout the volume of the drying chamber. Alternatively, the fluid pressure is modulated in a process stream. As an example, this method can be used for rapid drying of any open porous substances ranging from small pored materials such as aerogels and xerogels, to larger pored substances or articles such as industrial articles, agricultural articles (e.g., densely stacked vegetables, coffee beans, hops and other grains), paper-based products, thin films, pharmaceuticals, cloth, and clothing.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: May 4, 2004
    Assignee: Aspen Systems, Inc.
    Inventor: Kang P. Lee