Patents by Inventor Courtney L. Crandell

Courtney L. Crandell 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).

  • Patent number: 11990884
    Abstract: A variable capacitor bank includes a conductive housing and a port extending through the housing. An electrical bus is disposed within the conductive housing and coupled to the port. The variable capacitor bank further includes capacitor modules disposed within the housing. Each capacitor module includes a module input electrically coupled to the electrical bus and a switched capacitor branch electrically coupled to the module input, the switched capacitor branch including a capacitor and a switch element in series with the capacitor. In certain implementations, one or more of the capacitor modules may include at least one second switched capacitor branch. The capacitor modules may further include an unswitched, or “floor”, capacitor that provides a minimum or otherwise known capacitance of the capacitor module. Each capacitor module may further be grounded by being electrically coupled to the conductive housing.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: May 21, 2024
    Assignee: AES Global Holdings, Pte. Ltd.
    Inventor: Courtney L. Crandell
  • Publication number: 20210313969
    Abstract: A variable capacitor bank includes a conductive housing and a port extending through the housing. An electrical bus is disposed within the conductive housing and coupled to the port. The variable capacitor bank further includes capacitor modules disposed within the housing. Each capacitor module includes a module input electrically coupled to the electrical bus and a switched capacitor branch electrically coupled to the module input, the switched capacitor branch including a capacitor and a switch element in series with the capacitor. In certain implementations, one or more of the capacitor modules may include at least one second switched capacitor branch. The capacitor modules may further include an unswitched, or “floor”, capacitor that provides a minimum or otherwise known capacitance of the capacitor module. Each capacitor module may further be grounded by being electrically coupled to the conductive housing.
    Type: Application
    Filed: September 4, 2019
    Publication date: October 7, 2021
    Inventor: Courtney L. Crandell
  • Patent number: 10622972
    Abstract: A variable capacitor bank includes a conductive housing and a port extending through the housing. An electrical bus is disposed within the conductive housing and coupled to the port. The variable capacitor bank further includes capacitor modules disposed within the housing. Each capacitor module includes a module input electrically coupled to the electrical bus and a switched capacitor branch electrically coupled to the module input, the switched capacitor branch including a capacitor and a switch element in series with the capacitor. In certain implementations, one or more of the capacitor modules may include at least one second switched capacitor branch. The capacitor modules may further include an unswitched, or “floor”, capacitor that provides a minimum or otherwise known capacitance of the capacitor module. Each capacitor module may further be grounded by being electrically coupled to the conductive housing.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: April 14, 2020
    Assignee: Advanced Energy Industries, Inc.
    Inventor: Courtney L. Crandell
  • Publication number: 20200083868
    Abstract: A variable capacitor bank includes a conductive housing and a port extending through the housing. An electrical bus is disposed within the conductive housing and coupled to the port. The variable capacitor bank further includes capacitor modules disposed within the housing. Each capacitor module includes a module input electrically coupled to the electrical bus and a switched capacitor branch electrically coupled to the module input, the switched capacitor branch including a capacitor and a switch element in series with the capacitor. In certain implementations, one or more of the capacitor modules may include at least one second switched capacitor branch. The capacitor modules may further include an unswitched, or “floor”, capacitor that provides a minimum or otherwise known capacitance of the capacitor module. Each capacitor module may further be grounded by being electrically coupled to the conductive housing.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 12, 2020
    Inventor: Courtney L. Crandell