Patents Assigned to Joysun Ltd.
  • Support and hoist systems
    Patent number: 5934437
    Abstract: A support generally comprisinga mast component,a boom component extending forwardly from the mast component,and a stabilizing component for maintaining the support in a working disposition. The support may be used in conjunction with a lifting pole for forming a hoist system. The support and hoist system may be used to support or raise and lower an object such as a chute for debris.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: August 10, 1999
    Assignee: Joysun Ltd.
    Inventors: Andrew Philip Anson, Henry Vandelinde