Abstract: The invention relates to an escape valve for a timepiece including an outlet channel arranged to be capable of being in fluid communication with the interior of a case of the timepiece when the valve is in an open configuration to evacuate an excess of fluid. The valve includes a tube to be fixed in the case of the timepiece and a valve head provided with a cover and an axial skirt adapted to be placed in different axial positions, a pressure control module separate from the valve head arranged in the interior of a fluid conduit provided in the tube and axial guide elements by screwing defined in the valve head and the tube playing a part in the control of the displacement of the valve head relative to tube in the different axial positions, blocking elements preventing a disassociation between the valve head and the tube.

Abstract: A crown head for a timepiece includes a cap, a tube secured in a timepiece case, a central pipe engaged with the tube, and a safety valve with a discharge channel in fluid communication with the inside of the case when the valve is in an open configuration, to discharge excess fluid. The safety valve also includes a piston fitted inside the central pipe and an elastic member to cooperate with the piston, which can be displaced axially according to the pressure variations inside the case. The crown head also includes a blockage which prevents separation of the cap and the tube. The blockage includes a shoulder arranged on the inner wall of the tube, and includes a support surface against which part of the piston can abut, and a rim provided at the base of the central pipe to abut against a shoulder on the piston.

Abstract: A safety valve for a timepiece, particularly for a diving watch, including a discharge channel arranged to be able to be in fluid communication with the inside of a case of the timepiece when the valve is in an open configuration, in order to discharge excess fluid, particularly a gaseous fluid, the valve having a tube and a valve head provided with a cover and an axial skirt placed in various axial positions relative to the tube, and a pressure control module arranged inside a fluid duct provided in the tube and sliding axial guiding elements participating in controlling the movement of the valve head relative to the tube in the various axial positions, the safety valve including blocking elements preventing disconnection between the valve head and the tube and included in an outer or inner wall of the tube and in the valve head.

Abstract: An automatic safety valve for timepieces includes a valve head housed inside a tube. The valve head includes a lip seal disposed around a core and arranged so that a lip is squeezed against a wall of an outlet channel to disengage from the area to allow pressure compensation between the interior and exterior of a case during excess pressure inside the case, and pressed against the area to seal the interior of the case during excess pressure outside the case. The safety valve further includes an additional sealing element inside the outlet channel. The additional sealing element includes a membrane that is permeable to gases and to establish fluid communication from the interior of the case towards the exterior, when the internal pressure exceeds a predetermined value, and impermeable to liquids flowing from outside the case towards the interior of the case.

Abstract: The invention relates to a safety valve for a timepiece, particularly for a diving watch, comprising a discharge channel arranged to be able to be in fluid communication with the inside of a case of said timepiece when said valve is in an open configuration, in order to discharge excess fluid, particularly a gaseous fluid, said valve comprising: a tube intended to be fastened in the case of the timepiece, as well as a valve head provided with a cover and an axial skirt that is capable of being placed in various axial positions relative to said tube; a pressure control module separate from the valve head arranged inside a fluid duct provided in the tube, as well as sliding axial guiding elements defined in the valve head and the tube participating in controlling the movement of the valve head relative to the tube in the various axial positions, said safety valve comprising blocking elements preventing disconnection between the valve head and said tube, said blocking elements being included in an outer or i

Abstract: The invention relates to an escape valve for a timepiece including an outlet channel arranged to be capable of being in fluid communication with the interior of a case of the timepiece when the valve is in an open configuration to evacuate an excess of fluid. The valve includes a tube to be fixed in the case of the timepiece and a valve head provided with a cover and an axial skirt adapted to be placed in different axial positions, a pressure control module separate from the valve head arranged in the interior of a fluid conduit provided in the tube and axial guide elements by screwing defined in the valve head and the tube playing a part in the control of the displacement of the valve head relative to tube in the different axial positions, blocking elements preventing a disassociation between the valve head and the tube.

Abstract: The invention relates to a crown head for a timepiece, comprising a cap, a tube which is designed to be secured in a case of the timepiece, and a central pipe which is designed to be engaged with the tube, the central pipe and the cap forming an assembly which can be placed in different axial positions relative to the tube, the crown head also comprising a safety valve comprising a discharge channel which is designed to be able to be in fluid communication with the inside of the case when the valve is in an open configuration, in order to discharge excess fluid, the said safety valve also comprising a piston fitted inside the central pipe and an elastic member designed to cooperate with the piston, which is configured to be displaced axially according to the pressure variations inside the case, the crown head also comprising blocking means which prevent separation of the cap and the tube.

Abstract: The invention concerns an automatic safety valve for timepieces, particularly for dive watches, the valve including a valve head housed inside a tube intended to be fixed inside a case of the timepiece, the valve head including an outlet channel arranged to be capable of fluid communication with the inside of the case via a passage provided in said tube, when the pressure inside the case exceeds the pressure outside the case, in order to evacuate excess fluid, said valve head including a central core fixedly mounted inside said outlet channel, a lip seal having an annular base region and lip, the lip seal being disposed around said core and arranged so that the lip is squeezed against an area of a wall of the outlet channel, in order, on one hand, to be able to disengage from said area to allow pressure compensation between the interior of the case and the exterior of the case in the event of excess pressure inside the case, and on the other hand, pressed against said area to ensure the sealing of the interio