Abstract: A pump comprising a tubular body delimiting internally a metering chamber and comprising an inlet orifice, an inlet valve, a stem mounted so as to be able to move inside the body and comprising an actuation tube delimiting an outlet duct, an insert assembled to the actuation tube and comprising a base placed inside the metering chamber and facing the inlet orifice, and a discharge orifice, an annular piston mounted so as to slide inside the body and on the stem, the piston and the base comprising annular surfaces suitable for forming a discharge valve, a ball-and-socket joint being arranged between the insert and the actuation tube.

Abstract: The invention relates to a pump intended to be mounted on a vial in such a way as to allow the distribution of a liquid contained in said vial, wherein the internal surface of body incorporates means of air exhaust that are arranged to, in a portion of the compression stroke, break the friction contact of piston on said surface in such a way as to allow air to escape from the dosing chamber to the exterior of body.

Abstract: The invention concerns a nozzle for spraying a product, comprising a cylindro-conical body (10) having an axial channel (12) delimited at its upper end by a transverse wall (18) having a spraying orifice (20). An axial core (24) is arranged in the channel (12) and its upper end (24A) is located opposite the transverse wall (18) for delimiting therewith a spraying chamber (21). A communication between the lower end (12B) of the channel and the spraying chamber is provided between the core and the channel wall, whereof the lower end is capable of communication with a reservoir containing the product to be sprayed. The core (24) includes means forming a catching flange (26) having a catching edge (28) facing the lower end of the core and co-operating with the channel wall (13) to maintain the core in said channel.

Abstract: A dispenser for chemically unstable products that result from mixing at least two liquid and/or semiliquid components, the dispenser being of the type comprising an outer housing (1) containing at least two hermetically sealed compartments (11, 12) each containing a liquid component, the compartments being provided with respective extractor members (21, 22) suitable for being actuated simultaneously and together by a single pushbutton (3) and suitable for delivering into separate delivery ducts (31, 32) formed inside said pushbutton (3) and opening to the outside via at least one ejector orifice (31a, 32a), the dispenser being characterized in that each of said compartments (11, 12) is defined transversely by the bottom (10) of the outer housing (1) and by an internal bushing (41, 42) for supporting its extractor member (21, 22), and laterally by the wall of an internal tubular element (51, 52) whose ends are fixed in leakproof manner respectively to said bushing and to the bottom (10) of said housing (1).

Abstract: The invention relates to a pump of the type comprising a cylindro-conical body (1) defining a metering chamber (10) closed at its bottom portion by an inlet valve (11) and at its top portion by a moving piston (2) co-operating with resilient return means (3) while being carried axially by a nozzle tube (4) having a top end that projects outside the pump body and having a bottom end that is provided with at least one delivery orifice (40), the pump being characterized in that said piston (2) is slidably mounted firstly about the tube (4) between a closure position closing the delivery orifice (40) and an open position in which said orifice is fully open, and secondly in sealed peripheral contact with the inside wall of said chamber (10) between a top end-of-stroke abutment and a bottom end-of-stroke abutment; the coefficient of friction between the piston (2) and the tube (4) being less than the coefficient of friction between said piston (2) and the inside wall of the body (1).

Abstract: A device for connecting the body (C) of a pump (P) to a flexible bag (S) containing a liquid or semi-liquid fluid, the device being characterized in that it comprises a cylindrical sleeve (10) for leakproof fixing of the bag (S), which sleeve is connected at the top to a shoulder (11) carrying firstly a peripheral ring (13) for assembly with the wall of a rigid outer container (B) and secondly a central bushing (12) for leakproof support of the pump (P).

Abstract: The invention relates to a capsule for closing a receptacle (R) for a liquid and for dispensing said liquid, said capsule being characterized in that it comprises: A capsule for closing a receptacle (R) for a liquid and for dispensing said liquid, said capsule being characterized in that it comprises: an inner support element (1) designed to be fixed on the neck (C) of the receptacle (R) and including a central bushing (11) having a side wall provided with an ejection orifice (10); and an outer closure element (2) that is fastened onto said inner element (1) and which includes a central ring (21) provided with an outlet duct (20), said central ring (21) being designed to surround said bushing (11) in coaxial and rotary manner so as to establish at least one closed position in which the ejection orifice (10) is sealed and at least one dispensing position in which said orifice is in communication with the outlet duct (20).

Abstract: The invention relates to a dispenser for dispensing viscous liquids, which dispenser is designed to be mounted on a container; said dispenser being characterized in that it comprises a bowl (1) whose bottom is provided with an inlet orifice (10) equipped with a valve (11), and whose top is closed off by a piston (2) that is urged back into its high position by a spring (3) and that co-operates with the inside wall of the bowl to define a metering chamber (12), the wall of said chamber including an annular zone, all or part of which is elastically deformable so as to act, under the effect of the pressure generated inside the chamber (12) to release a passageway (P) via which the liquid can be removed, which passageway opens out peripherally to the outside.

Abstract: A prosthesis for the knee articulation is provided which has a femoral implant having two condyles which are of convex shape, each having a variable radius, and a tibial implant having two cavities, each of which interacts with a respective one of the condyles. In its posterior region, the internal condyle has a spherical prominence which projects from the contact plane of the internal condyle and is intended to interact with a spherical cap hollowed into the posterior region of the internal cavity of the tibial implant.