Abstract: A limit control device for filling a liquid storage tank has a hollow upper body, a plunger tube integral with the upper body, a valve mounted in the hollow upper body and capable of moving between an opening position and a closing position, a valve seat arranged in the hollow upper body and whereon the valve is urged to rest in a closing position, a floater vertically mobile in a chamber arranged at least partially inside the plunger tube. The device is characterized in that the floater is integral with a moving element forming a piston, the moving element being displaced by thrust of the liquid acting on one of its ends.

Abstract: It is of the type comprising a body of vertical axis and arranged at least partially in the tank, an interior partition being mounted in the body and delimiting a passageway for the liquid and a chamber to house a float, a valve mounted above the passageway and the float chamber, the valve being capable of moving between an open position and a closed position, and a valve seat, the said float being moved vertically by the rise of the liquid in the tank and acting on the valve via operating means comprising an operating rod, the lower end of which is secured to the float, the other end of the operating rod comprises a ball moving in a groove formed in part of the valve.

Abstract: A filling regulator for a liquid storage tank of the type according to which a float is displaced vertically in the float chamber provided in the body of the regulator. The regulator includes a deflector slanted over the inner wall of the body and installed above the gate at a far enough distance above the float chamber to allow the gate to be positioned in the full-open position. The deflector includes slanted, spaced-apart blades which are joined at their lower ends by a protective base.

Abstract: The overfill device is of the type comprising a filling tube having a vertical axis and disposed in the tank, a butterfly valve disposed in the filling tube and movable between a vertical opening position and a closing position which corresponds to a bearing of the valve on a valve seat provided in the filling tube, and a float connected to the flap valve and capable of shifting the flap valve between the opening and closing positions, and is characterized in that the valve seat is inclined relative to the vertical axis of the filling tube and the valve is mounted on a pivot pin which is disposed between ends of the valve and is eccentric relative to the vertical axis of the filling tube.

Abstract: The overfill device comprises a body (6), a flap valve (7) mounted in the body, a float (8) connected by a lever (9) to the valve, a plunger tube (10) connected to the body (6) and provided with an aperture (11), characterized in that an elastically deformable closure member (13) is mounted in the plunger tube and is applicable against the inner surface parts of the tube located on each side of the aperture by the effect of its own resilience and thereby closes the aperture when the float is located outside the plunger tube. Applications in tanks storing liquid products such as hydrocarbons.

Abstract: A system for displaying a segment as applicable in particular to remote-controlled digital display. A control circuit energizes two stationary series-connected electromagnets with pulses of the same polarity so as to produce a magnetic field in each electromagnet. Under the action of the magnetic field, a single permanent magnet rigidly fixed to the segment is capable of displacement between the electromagnets in order to move the segment from a visible active position to a hidden active position.