Patents by Inventor Christopher R. DENNEY

Christopher R. DENNEY 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).

  • Floating evaporator saturated suction temperature systems and methods
    Patent number: 11668495
    Abstract: Systems and methods are provided and include first and second case controllers for first and second refrigeration cases. The first case controller receives a first air temperature value of the first refrigeration case and communicates the first air temperature value to the second case controller. The second case controller receives a second air temperature value, determine an evaporator saturated suction temperature (SST) value, controls an evaporator pressure regulator based on a comparison of the evaporator SST value with an evaporator SST setpoint, determines an air temperature control value, determines whether the air temperature control value is within a predetermined range of an air temperature setpoint, and adjusts the evaporator SST setpoint in response to the air temperature control value being outside of the predetermined range of the air temperature setpoint.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: June 6, 2023
    Assignee: Emerson Digital Cold Chain, Inc.
    Inventors: Christopher A. Tarbell, Gregory S. Mickelson, Christopher R. Denney
  • Floating evaporator saturated suction temperature systems and methods
    Patent number: 11525606
    Abstract: Systems and methods are provided and include a case controller for a refrigeration case of a refrigeration system. The case controller is configured to: determine an evaporator saturated suction temperature (SST) of an evaporator of the refrigeration case; control an evaporator pressure regulator of the refrigeration system based on a comparison of the evaporator SST with an evaporator saturated suction temperature (SST) setpoint; receive an air temperature value from an air temperature sensor associated with the refrigeration case; determine whether the air temperature value is within a predetermined range of an air temperature setpoint; and adjust the SST setpoint in response to the air temperature value being outside of the predetermined range of the air temperature setpoint.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: December 13, 2022
    Assignee: Emerson Digital Cold Chain, Inc.
    Inventors: Christopher A. Tarbell, Gregory S. Mickelson, Christopher R. Denney
  • Floating Evaporator Saturated Suction Temperature Systems And Methods
    Publication number: 20220325921
    Abstract: Systems and methods are provided and include first and second case controllers for first and second refrigeration cases. The first case controller receives a first air temperature value of the first refrigeration case and communicates the first air temperature value to the second case controller. The second case controller receives a second air temperature value, determine an evaporator saturated suction temperature (SST) value, controls an evaporator pressure regulator based on a comparison of the evaporator SST value with an evaporator SST setpoint, determines an air temperature control value, determines whether the air temperature control value is within a predetermined range of an air temperature setpoint, and adjusts the evaporator SST setpoint in response to the air temperature control value being outside of the predetermined range of the air temperature setpoint.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 13, 2022
    Applicant: Emerson Digital Cold Chain, Inc.
    Inventors: Christopher A. TARBELL, Gregory MICKELSON, Christopher R. DENNEY
  • Floating Evaporator Saturated Suction Temperature Systems And Methods
    Publication number: 20210095898
    Abstract: Systems and methods are provided and include a case controller for a refrigeration case of a refrigeration system. The case controller is configured to: determine an evaporator saturated suction temperature (SST) of an evaporator of the refrigeration case; control an evaporator pressure regulator of the refrigeration system based on a comparison of the evaporator SST with an evaporator saturated suction temperature (SST) setpoint; receive an air temperature value from an air temperature sensor associated with the refrigeration case; determine whether the air temperature value is within a predetermined range of an air temperature setpoint; and adjust the SST setpoint in response to the air temperature value being outside of the predetermined range of the air temperature setpoint.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 1, 2021
    Applicant: Emerson Climate Technologies Retail Solutions, Inc.
    Inventors: Christopher A. TARBELL, Gregory MICKELSON, Christopher R. DENNEY