Movable shutter for a fluid conduit

A movable shutter for a fluid conduit including:

• two half-bodies having a space therebetween, with each half-body having a tube having a flange at a first end and a plate at a second end, each of the plates having a bearing surface, wherein the half-bodies cooperate to form a fluid conduit,
• a gate in the form of a body defined by two flat facing longitudinal surfaces, each of which is located respectively opposite the bearing surface of the plates, the gate having a solid portion and a portion that is pierced by an opening whose edges are flush with each of the longitudinal surfaces, the gate being mounted movably between the bearing surfaces in the space between the two half-bodies, between:
• a closed position in which the solid portion closes the fluid conduit so as to prevent the flow of fluid between the two half-bodies;
• and
• an open position in which the pierced portion is placed in the center of the fluid conduit so as to allow the flow of fluid between the two half-bodies,
• a locking mechanism suitable for keeping the plates in:
• a position in which they are separated, in which the bearing surface of the plates is spaced apart from the respective longitudinal surface of the gate, so as to allow the gate to be shifted between the closed and open positions;
• and
• a position in which they are close together, in which the bearing surfaces clamp together, in a leakproof manner, the body of the gate so as to hold the gate in the open position or in the closed position, with each of the bearing surfaces coming into close contact with the respective longitudinal surface of the gate,
• at least one protruding element made of a rigid material, with the protruding element being configured such that in the close-together position, the space between the two bearing surfaces of the plates is less than the combined thickness of the body and of the protruding element, such that if the gate is not properly positioned in the space between the two half-bodies, in the closed position or in the open position, the protruding element forms an obstacle that keeps the bearing surface of at least one plate away from the respective longitudinal surface, and such that the locking mechanism cannot keep the plates in the position in which they are close together and in which they clamp the body in a leakproof manner,
• wherein the protruding element is provided on at least one of the longitudinal surfaces of the body of the gate, the protruding element is located between the solid portion and the pierced portion of the body, such that if the gate is positioned in such a way that the protruding element is located in the space between the two bearing surfaces of the plates, the protruding element maintains a space between the longitudinal surface on which it is located and the respective bearing surface, and
• wherein the protruding element is in the shape of an hourglass, with two straight sides that are parallel to the longitudinal edges of the body of the gate, with the straight sides being linked by two curved sides.

A movable shutter for a fluid conduit including:

• two half-bodies cooperating to form a fluid conduit and having a space therebetween, with each of the half-bodies having a tube having a flange at a first end and a plate at a second end, each of the plates having a bearing surface,
• a gate in the form of a body defined by two facing longitudinal surfaces, each of which is located respectively opposite the bearing surface of the plates, the gate having a solid portion and a portion having an opening whose edges are flush with the longitudinal surfaces, the gate being mounted movably between the bearing surfaces in the space between the two half-bodies, between:
• a closed position in which the solid portion closes the fluid conduit so as to prevent the flow of fluid between the two half-bodies;
• and
• an open position in which the opening is placed in the fluid conduit so as to allow the flow of fluid between the two half-bodies,
• the plates being locked in:
• a position in which they are separated, in which the bearing surface of the plates is spaced apart from the respective longitudinal surface of the gate, so as to allow the gate to be shifted between the closed and open positions;
• and
• a position in which they are close together, in which the bearing surfaces clamp together, in a leakproof manner, the body of the gate so as to hold the gate in the open position or in the closed position, with each of the bearing surfaces coming into contact with the respective longitudinal surface of the gate,
• at least one protruding element made of a rigid material, with the protruding element being configured such that in the close-together position, the space between the two bearing surfaces of the plates is less than the combined thickness of the body and of the protruding element, such that if the gate is not properly positioned in the space between the two half-bodies, in the closed position or in the open position, the protruding element forms an obstacle that keeps the bearing surface of at least one plate away from the respective longitudinal surface, and such that the plates cannot be kept in the position in which they are close together and in which they clamp the body in a leakproof manner,
• wherein the protruding element is provided on at least one of the longitudinal surfaces of the body of the gate, the protruding element is located between the solid portion and the opening of the body, such that if the gate is positioned in such a way that the protruding element is located in the space between the two bearing surfaces of the plates, the protruding element maintains a space between the longitudinal surface on which it is located and the respective bearing surface, and
• wherein the protruding element is positioned at the center of the body of the gate.