Patents Assigned to Marais SA
  • Method for propelling a cable or the like into a duct
    Patent number: 6402123
    Abstract: Method and device for propelling a cable or the like into a duct. According to the invention, said cable (2) is propelled into the duct (3) by the combined action of a flow of a pressurized liquid (14) and of a stream of pressurized gas (12), the pressure of said gas being greater than the pressure of said liquid.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: June 11, 2002
    Assignee: Marais SA
    Inventor: Daniel Rivard