Patents Assigned to 7AC Technologies, Inc.
  • Patent number: 10941948
    Abstract: A liquid desiccant air conditioning system includes one or more liquid desiccant tanks.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: March 9, 2021
    Assignees: 7AC Technologies, Inc., Alliance For Sustainable Energy, LLC
    Inventors: Peter F. Vandermeulen, Eric Kozubal, Mark A. Allen, Scott N. Rowe
  • Patent number: 10921001
    Abstract: A liquid desiccant air-conditioning system provides a uniform liquid desiccant flow distribution and wetting out of membranes used in the membrane-modules of the system.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: February 16, 2021
    Assignee: 7AC Technologies, Inc.
    Inventors: Carl Allen, Mark A. Allen, Scott N. Rowe, Mark D. Rosenblum, Peter Luttik
  • Patent number: 10760830
    Abstract: A desiccant air conditioning system for treating an air stream entering a building space, including a conditioner configured to expose the air stream to a liquid desiccant such that the liquid desiccant dehumidifies the air stream in the warm weather operation mode and humidifies the air stream in the cold weather operation mode. The conditioner includes multiple plate structures arranged in a vertical orientation and spaced apart to permit the air stream to flow between the plate structures. Each plate structure includes a passage through which a heat transfer fluid can flow. Each plate structure also has at least one surface across which the liquid desiccant can flow. The system includes a regenerator connected to the conditioner for causing the liquid desiccant to desorb water in the warm weather operation mode and to absorb water in the cold weather operation mode from a return air stream.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 1, 2020
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Arthur Laflamme, Mark Allen, Robert Doody, David Pitcher
  • Patent number: 10753624
    Abstract: Methods and systems are provided for air conditioning, capturing combustion contaminants, desalination, and other processes using liquid desiccants.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 25, 2020
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Jack I. Hanoka
  • Patent number: 10731876
    Abstract: A split liquid desiccant air conditioning system is disclosed for treating an air stream flowing into a space in a building. The split liquid desiccant air-conditioning system is switchable between operating in a warm weather operation mode wherein the system provides cooling and dehumidification, and a cold weather operation mode wherein the system provides heating and humidification, as well as into a mode wherein the system provides heated, dehumidified air to a space.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: August 4, 2020
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 10619895
    Abstract: Liquid desiccant air-conditioning systems cool and dehumidify a space in a building when operating in a cooling operation mode, and heat and humidify the space when operating in a heating operation mode.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: April 14, 2020
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 10619867
    Abstract: A split liquid desiccant air conditioning system is disclosed for treating an air stream flowing into a space in a building. The split liquid desiccant air-conditioning system is switchable between operating in a warm weather operation mode and a cold weather operation mode.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 14, 2020
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 10619868
    Abstract: An air-conditioning system includes a plurality of liquid desiccant in-ceiling units, each installed in a building for treating air in a space in the building. Dedicated outside air systems (DOAS) for providing a stream of treated outside air to the building are also disclosed.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: April 14, 2020
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 10443868
    Abstract: Disclosed are various turbulent, corrosion-resistant heat exchangers used in desiccant air conditioning systems.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 15, 2019
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Mark Allen, Arthur Laflamme
  • Patent number: 10323867
    Abstract: Liquid desiccant air-conditioning systems cool and dehumidify a space in a building when operating in a cooling operation mode, and heat and humidify the space when operating in a heating operation mode.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: June 18, 2019
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 10168056
    Abstract: An air conditioning method includes the steps of: dehumidifying an air stream to be provided to a building space by exposing the air stream to a liquid desiccant in a conditioner; diverting a portion of the air stream dehumidified in the conditioner to an air treatment unit acting as an evaporative chiller to that causes the portion of the dehumidified air stream to absorb water from a water source and thereby cool a heat transfer fluid, and providing the heat transfer fluid cooled in the air treatment unit to the conditioner to cool the air stream to be provided to the building space; and regenerating the liquid desiccant used in the conditioner.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: January 1, 2019
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Jack I. Hanoka
  • Patent number: 10024558
    Abstract: A split liquid desiccant air conditioning system is disclosed for treating an air stream flowing into a space in a building. The split liquid desiccant air-conditioning system is switchable between operating in a warm weather operation mode wherein the system provides cooling and dehumidification, and a cold weather operation mode wherein the system provides heating and humidification, as well as into a mode wherein the system provides heated, dehumidified air to a space.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: July 17, 2018
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 10024601
    Abstract: A system for providing cooling to a building includes a cooling tower for transferring waste heat from the building to the atmosphere and a liquid desiccant system for dehumidifying an air stream entering the cooling tower to increase cooling efficiency of the cooling tower. The liquid desiccant system includes a conditioner and a regenerator. The conditioner utilizes a liquid desiccant for dehumidifying the air stream entering the cooling tower. The regenerator is connected to the conditioner for receiving dilute liquid desiccant from the conditioner, concentrating the dilute liquid desiccant using waste heat from the building, and returning concentrated liquid desiccant to the conditioner.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: July 17, 2018
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 10006648
    Abstract: Methods and systems are provided for air conditioning, capturing combustion contaminants, desalination, and other processes using liquid desiccants.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: June 26, 2018
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Jack I. Hanoka
  • Publication number: 20180163977
    Abstract: A split liquid desiccant air conditioning system is disclosed for treating an air stream flowing into a space in a building. The split liquid desiccant air-conditioning system is switchable between operating in a warm weather operation mode and a cold weather operation mode.
    Type: Application
    Filed: January 25, 2018
    Publication date: June 14, 2018
    Applicant: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Publication number: 20180051897
    Abstract: Disclosed are various turbulent, corrosion-resistant heat exchangers used in desiccant air conditioning systems.
    Type: Application
    Filed: October 31, 2017
    Publication date: February 22, 2018
    Applicant: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Mark Allen, Arthur Laflamme
  • Patent number: 9835340
    Abstract: Disclosed are various turbulent, corrosion-resistant heat exchangers used in desiccant air conditioning systems.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: December 5, 2017
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Mark Allen, Arthur Laflamme
  • Publication number: 20170292722
    Abstract: Methods and systems are disclosed for utilizing liquid desiccant air conditioning systems in connection with existing HVAC equipment to achieve reductions in electricity consumption.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 12, 2017
    Applicant: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 9709285
    Abstract: Methods and systems are disclosed for utilizing liquid desiccant air conditioning systems in connection with existing HVAC equipment to achieve reductions in electricity consumption.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: July 18, 2017
    Assignee: 7AC Technologies, Inc.
    Inventor: Peter F. Vandermeulen
  • Patent number: 9709286
    Abstract: A desiccant air conditioning system for heating an air stream entering a building space includes a conditioner having multiple structures arranged in a substantially vertical orientation. The structures are spaced apart from each other with an air stream gap between each pair of adjacent structures. Each structure has at least one outer surface facing an air stream gap across which a liquid desiccant can flow. An air stream flows through the air stream gaps between the structures such that the liquid desiccant humidifies the air stream. Each structure further includes a separate desiccant collector at a lower end of the at least one outer surface for collecting liquid desiccant that has flowed across the at least one outer surface of the structure. The desiccant collectors are spaced apart from each other to permit airflow therebetween. The conditioner also includes a heat source for heating a heat transfer fluid used to heat the liquid desiccant.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: July 18, 2017
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Jack I. Hanoka