Patents Assigned to KINETROL LTD
  • Patent number: 11585327
    Abstract: The present invention provides a spring return device comprising a rotatable drive coupling configured for releasably engaging a rotatable drive part on a first side of the device and configured for releasably engaging a rotatable drive part on an opposite second side of the device. A spring is engaged with the drive coupling, and a retainer retains the spring. The drive coupling is rotatable relative to the retainer, wherein rotation of the drive coupling relative to the retainer in a first direction causes mechanical energy to be stored in the spring.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: February 21, 2023
    Assignee: KINETROL LTD
    Inventor: Roger Chapman