Patents Assigned to Liforma Investments NV
  • Overflow preventor
    Patent number: 6490738
    Abstract: An overflow preventer comprising a plug receivable in a drain hole and provided with a valve movable between a first closed position and a second open position, the valve being resiliently biased to the first position while the pressure on the valve is less than a predetermined value.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: December 10, 2002
    Assignee: Liforma Investments NV
    Inventor: Trevor Blaney
  • Overflow preventer
    Patent number: 6279175
    Abstract: An overflow preventer comprising a plug receivable in a drain hole and provided with a valve movable between a first closed position and a second open position, the valve being resiliently biased to the first position while the pressure on the valve is less than a predetermined value.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: August 28, 2001
    Assignee: Liforma Investments NV
    Inventor: Trevor Blaney