Patents Assigned to Dandelion Energy, Inc.
  • Patent number: 12241664
    Abstract: A blower and heat exchanger component of a heat pump, includes physically moveable interface blocks located at the corners. The blocks are relocatable to different corner locations on the unit, to allow a same blower/heat exchanger component to adapt to an existing duct being located on either side (e.g., by installing the component rotated within the installation space as appropriate). Active interface block(s) moveable to different corners afford access to power connection and/or data connections and status display features. Blank blocks occupy the corner locations left vacant by relocation of active blocks to the side of the unit serving as the front for a particular installation. The moveable corner blocks afford access to the unit for power and data connection, and status display, irrespective of orientation as installed relative to an existing ducting layout of a building.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: March 4, 2025
    Assignee: DANDELION ENERGY, INC.
    Inventors: John Dunn, Kathleen Hannun, Dung Duc Nguyen, Paul Ingemi
  • Patent number: 12152795
    Abstract: An electrical interface selectively places a heat pump and a backup temperature control device in alternative electrical communication with a single power feed. A compressor of the heat pump may be in selective electrical communication with the power feed via a normally open relay. Removal of a control voltage results in opening of the normal open relay, and closing of a normally closed relay to place the backup temperature control device in selective electrical communication with the power feed. For a ground source heat pump, a ground loop pump may also be in selective electrical communication with the power feed (e.g., via a normally closed relay).
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: November 26, 2024
    Assignee: DANDELION ENERGY, INC.
    Inventors: Paul Ingemi, Dung Duc Nguyen, John Dunn
  • Patent number: 11940221
    Abstract: A multi-stacked heat exchanger comprises a first heat exchanger and a second heat exchanger. A first end of the first heat exchanger receives a first fluid in a first conduit flowing in a first direction within a plane. A first end of the second heat exchanger receives the first fluid from the first heat exchanger in a second direction flowing opposite to the first direction within the plane. A flow of a second fluid is communicated through the second heat exchanger and then through the first heat exchanger, in a second direction orthogonal to the first direction. The second fluid is in thermal communication with the first fluid in the second heat exchanger and then in the first heat exchanger. By doubling the flowed first fluid back upon itself, embodiments achieve counterflow between the first fluid and second fluid within a compact space.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: March 26, 2024
    Assignee: DANDELION ENERGY, INC.
    Inventor: John Dunn
  • Patent number: 11454092
    Abstract: In some embodiments, a method operates a heat pump that uses a ground loop to perform heating or cooling in a site. During the operating of the heat pump over a time period: the method measures a first series of measurements of a ground loop water flow rate by the heat pump; a second series of measurements of a ground loop fluid temperature for the heat pump; and measures a third series of measurements of a local soil or deep earth temperature. The first measurement, the second measurement, and the third measurement are outputted where a ground loop thermal resistance value is calculated for the heat pump based on the first measurement, the second measurement, and the third measurement.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: September 27, 2022
    Assignee: Dandelion Energy, Inc.
    Inventors: Rajeev James Quazi, Ryan Joseph Carda, Brian Lee Zimmerly
  • Patent number: 10641051
    Abstract: The technology relates to systems and methods for creating openings in ground material in order to install ground loops for geothermal heating and cooling applications. As an example, a system for creating an opening in ground material may include a first drill head configured as a pipe pulling drill head and a second drill head configured for attachment with a boring tool. When attached to an end of a pipe, the first drill head is configured to pull the pipe into the opening in ground material. The second drill head may include a drilling portion and an opening opposite of the drilling portion, the opening including a first chamber that tapers towards a second chamber. The first drill head also includes a drilling end configured for a locking fit within the second chamber.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: May 5, 2020
    Assignee: Dandelion Energy, Inc.
    Inventors: Raymond Louis Gradwohl, Jacques Gagne
  • Patent number: 10316588
    Abstract: A pipe shaker apparatus is configured to shake within a pipe and cause the pipe to vibrate. The pipe shaker apparatus includes a rotor having an offset mass. The offset mass is offset from a longitudinal axis through a first end piece of the rotor at a first end of the rotor and a second end piece of the rotor at a second end of the rotor. The pipe shaker apparatus also includes a tubular body having first and second ends. First and second end caps are arranged at first and second ends of the tubular body such that air is able to pass through the first end cap, enter the tubular body, cause the rotor to rotate, and exit the tubular body through the second end cap. The rotor is arranged such that rotation of the rotor by the air cases the offset mass to shake the pipe shaker apparatus.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: June 11, 2019
    Assignee: Dandelion Energy, Inc.
    Inventors: Kenneth Robertson, Bruce Allen Eisenhauer, Jr., Luuk Sasse