Patents Assigned to Subscan Systems Ltd.
  • Pipeline vehicle
    Patent number: 4537136
    Abstract: The vehicle has front and rear sets of wheels (24) carried on sprung arms (20). Each wheel can be locked by a clutch (26). One set of wheels is locked while a ram (32) is operated, causing the other set of wheels to roll forward. The main body (10) of the vehicle can be rotated relative to the wheels (24) by means of a motor (48) operating via a drive belt (50). The interior of the body (10) is pressurized with inert gas, suitably nitrogen exhausted from the propulsion system which is vented by a one-way valve 38.
    Type: Grant
    Filed: January 25, 1983
    Date of Patent: August 27, 1985
    Assignee: Subscan Systems Ltd.
    Inventor: Brian Douglas