Patents by Inventor William C. Silliman

William C. Silliman 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).

  • Thermostatic expansion valves and methods of control
    Patent number: 11874038
    Abstract: A method of operating a refrigeration system is provided. The method includes activating an evaporator heater, monitoring a pressure differential within the refrigeration system, when the pressure differential reaches a predetermined value, deactivating the evaporator heater, and activating one or more evaporator fans, after deactivating the evaporator heater, to cause a thermostatic expansion valve to open.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: January 16, 2024
    Assignee: CARRIER CORPORATION
    Inventors: Douglas Auyer, Gilbert B. Hofsdal, William C. Silliman, Raymond L. Senf, Jr.
  • THERMOSTATIC EXPANSION VALVES AND METHODS OF CONTROL
    Publication number: 20230009585
    Abstract: A method of operating a refrigeration system is provided. The method includes activating an evaporator heater, monitoring a pressure differential within the refrigeration system, when the pressure differential reaches a predetermined value, deactivating the evaporator heater, and activating one or more evaporator fans, after deactivating the evaporator heater, to cause a thermostatic expansion valve to open.
    Type: Application
    Filed: June 27, 2022
    Publication date: January 12, 2023
    Inventors: Douglas Auyer, Gilbert B. Hofsdal, William C. Silliman, Raymond L. Senf, JR.
  • Thermostatic expansion valves and methods of control
    Patent number: 11371763
    Abstract: A method of operating a refrigeration system is provided. The method includes activating an evaporator heater (306), monitoring a pressure differential within the refrigeration system (308), when the pressure differential reaches a predetermined value (310), deactivating the evaporator heater (312), and activating one or more evaporator fans (314), after deactivating the evaporator heater, to cause a thermostatic expansion valve to open.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: June 28, 2022
    Assignee: CARRIER CORPORATION
    Inventors: Douglas Auyer, Gilbert B. Hofsdal, William C. Silliman, Raymond L. Senf, Jr.
  • SELF VALIDATION OF CONTROLLER INTERNAL CIRCUITS
    Publication number: 20210223302
    Abstract: Systems and methods for testing circuit operations are provided. Aspects include a circuit comprising a power source, a switching element, and a load. A sensing element is arranged between the switching element and the load and the sensing element is communicatively coupled to a microcontroller, wherein the microcontroller is configured to perform a diagnostic operation for the circuit comprising obtaining, from the sensing element, first sensor data associated with the load responsive to operating the switching element, wherein the first sensor data comprises electrical values associated with the load, obtaining, from the sensing element, second sensor data associated with an output of the switching element, wherein the second sensor data comprises electrical values associated with the output of the switching element, and analyzing the first sensor data and the second sensor data to determine a fault condition for the circuit.
    Type: Application
    Filed: September 9, 2019
    Publication date: July 22, 2021
    Inventors: William C. Silliman, Gilbert B. Hofsdal, Daniel L. Waser, Aryn Shapiro
  • THERMOSTATIC EXPANSION VALVES AND METHODS OF CONTROL
    Publication number: 20190056161
    Abstract: A method of operating a refrigeration system is provided. The method includes activating an evaporator heater (306), monitoring a pressure differential within the refrigeration system (308), when the pressure differential reaches a predetermined value (310), deactivating the evaporator heater (312), and activating one or more evaporator fans (314), after deactivating the evaporator heater, to cause a thermostatic expansion valve to open.
    Type: Application
    Filed: August 3, 2016
    Publication date: February 21, 2019
    Inventors: Douglas Auyer, Gilbert B. Hofsdal, William C. Silliman, Raymond L. Senf, Jr.