Patents by Inventor Keith HOLDSTOCK

Keith HOLDSTOCK 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).

  • Power management of a battery of a stair lift system
    Patent number: 11780708
    Abstract: A lift system comprises a rail and a carriage assembly comprising a seat or platform for supporting a person to be conveyed along the rail, drive means arranged to engage the rail and controllable to drive the carriage assembly along the rail, energy storage means arranged to power the drive means, input means operable by a user to provide an input signal indicative of a desired movement of the carriage assembly along the rail, and control means arranged to receive the input signal and control the drive means in response to the input signal. The system includes charging means arranged to charge the energy storage means when the carriage assembly is at a first charging position on the rail.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: October 10, 2023
    Assignee: ACORN MOBILITY SERVICES LIMITED
    Inventors: John Stewart Jakes, Keith Holdstock
  • POWER MANAGEMENT OF A BATTERY OF A STAIR LIFT SYSTEM
    Publication number: 20220135376
    Abstract: A lift system comprises a rail and a carriage assembly comprising a seat or platform for supporting a person to be conveyed along the rail, drive means arranged to engage the rail and controllable to drive the carriage assembly along the rail, energy storage means arranged to power the drive means, input means operable by a user to provide an input signal indicative of a desired movement of the carriage assembly along the rail, and control means arranged to receive the input signal and control the drive means in response to the input signal. The system includes charging means arranged to charge the energy storage means when the carriage assembly is at a first charging position on the rail.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Inventors: John Stewart JAKES, Keith HOLDSTOCK
  • Power management of a battery of a stair lift system
    Patent number: 11254541
    Abstract: A lift system comprises a rail (1) and a carriage assembly (2) comprising a seat (21) or platform (21) for supporting a person to be conveyed along the rail (1), drive means arranged to engage the rail (1) and controllable to drive the carriage assembly (2) along the rail (1), energy storage means arranged to power the drive means, input means operable by a user to provide an input signal indicative of a desired movement of the carriage assembly (2) along the rail (1), and control means arranged to receive the input signal and control the drive means in response to the input signal. The system includes charging means arranged to charge the energy storage means when the carriage assembly (2) is at a first charging position on the rail (1).
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 22, 2022
    Assignee: ACORN MOBILITY SERVICES LIMITED
    Inventors: John Stewart Jakes, Keith Holdstock
  • POWER MANAGEMENT OF A BATTERY OF A STAIR LIFT SYSTEM
    Publication number: 20190047825
    Abstract: A lift system comprises a rail (1) and a carriage assembly (2) comprising a seat (21) or platform (21) for supporting a person to be conveyed along the rail (1), drive means arranged to engage the rail (1) and controllable to drive the carriage assembly (2) along the rail (1), energy storage means arranged to power the drive means, input means operable by a user to provide an input signal indicative of a desired movement of the carriage assembly (2) along the rail (1), and control means arranged to receive the input signal and control the drive means in response to the input signal. The system includes charging means arranged to charge the energy storage means when the carriage assembly (2) is at a first charging position on the rail (1).
    Type: Application
    Filed: September 29, 2016
    Publication date: February 14, 2019
    Inventors: John Stewart JAKES, Keith HOLDSTOCK