Patents Assigned to Rota Limited
  • Patent number: 6607054
    Abstract: There is provided a sealing device with a support portion and a sealing member. The support portion has a cover plate and a peripheral wall. In the center of the support portion is a central boss which is provided with a blind hole. The boss also has an arm which can be rotated about the boss due to a retaining plate. The blind hole in the boss can be used for receiving stems of various equipment, such as bars, railings, or ladders.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: August 19, 2003
    Assignee: Rota Limited
    Inventor: John Sidney Lindfield