Abstract: The invention relates to a device for regulating the flow rate and/or pressure of a fluid, such as valve for a pressure gas cylinder, comprising a reducing valve including a first plug designed to be moved in the normal flow direction of the fluid during closure. The reducing valve also comprises a plunger to which the plug is coupled. The face of the plunger that is oriented towards the first plug defines a regulation chamber together with the body. The aforementioned face also comprises a seal that engages with a corresponding surface of the body such as to form a second plug for maintaining residual pressure. The regulation device also comprises a means for preloading and releasing a spring acting on the opposite face of the plunger.

Abstract: A cylinder valve for pressurized gas with a body including a gas inlet, a gas outlet and a passage connecting the inlet to the outlet. The valve also includes a closing/opening valve, a pressure reducer and a device for reducing or closing the gas passage between said valve and a pressure reducer. The device includes an element that is made of shape-memory alloy and positioned in a cavity of the passage. The element includes an active deformable portion, the circular outer edge of which is capable of engaging with the inner surface of the cavity in order to close the passage following a rise in temperature caused by combustion. The combustion can be generated by adiabatic compression during the opening of the valve.

Abstract: The invention relates to a device for regulating the flow rate and/or pressure of a fluid, such as valve for a pressure gas cylinder, comprising a reducing valve including a first plug designed to be moved in the normal flow direction of the fluid during closure. The reducing valve also comprises a plunger to which the plug is coupled. The face of the plunger that is oriented towards the first plug defines a regulation chamber together with the body. The aforementioned face also comprises a seal that engages with a corresponding surface of the body such as to form a second plug for maintaining residual pressure. The regulation device also comprises a means for preloading and releasing a spring acting on the opposite face of the plunger.

Abstract: A gas releasing and/or regulating mechanism is equipped with a body (1) with a passage, a gas intake (2) and outlet (3), the intake and outlet being connected to the passage; elements to block (5, 6, 7, 8) the passage; mobile elements (9) which associated to the body (1) of the mechanism, define a low pressure chamber (11) below the blocking elements (5, 6, 7, 8), the mobile elements (9) operating the blocking elements (5, 6, 7, 8) depending on the pressure within the low pressure chamber (11). The blocking elements (5, 6, 7, 8) are made of a first shutter (5, 6) and a second shutter (7, 8) below the first in the passage; and the first and second shutters (5, 6, 7, 8) are mechanically connected so that the first shutter (5, 6) closes before the second one (7, 8).

Abstract: The invention relates to a cylinder valve pressurized gas. The body of the valve includes a gas inlet, a gas outlet (not shown) and a passage connecting the inlet to the outlet. The valve also includes a closing/opening valve (FIG. 2), a pressure reducer and a device for reducing or closing the gas passage between said valve and a pressure reducer. The device includes an element that is made of shape-memory alloy and positioned in a cavity of the passage. The element includes an active deformable portion, the circular outer edge of which is capable of engaging with the inner surface of the cavity in order to close the passage following a rise in temperature caused by combustion. The combustion can be generated by adiabatic compression during the opening of the valve.

Abstract: The invention relates to a valve device of the cylinder valve type, comprising a filling coupling (11) connected directly to the inlet (2) of the valve without passing via the valve shut-off device (4, 8). A filtering element (12) is positioned in a chamber at the intersection between the inlet to the valve and the device for shutting-off the valve. This allows the filter to be arranged optimally from the accessibility point of view and also from the gas flow point of view. Specifically, the filter is arranged in the chamber in such a way as to filter the stream of gas flowing towards the outlet (3) of the valve via the shut-off device, thus protecting the latter, and also in such a way as not to filter the stream of filling gas flowing from the filling connector of the valve towards the inlet.

Abstract: The invention presents a gas releasing and/or regulating mechanism, equipped with: a body (1) with a passage, a gas intake (2) and outlet (3), the intake and outlet being connected to the passage; elements to block (5, 6, 7, 8) the passage; mobile elements (9) which associated to the body (1) of the mechanism, define a low pressure chamber (11) below the blocking elements (5, 6, 7, 8), the mobile elements (9) operating the blocking elements (5, 6, 7, 8) depending on the pressure within the low pressure chamber (11). The blocking elements (5, 6, 7, 8) are made of a first shutter (5, 6) and a second shutter (7, 8) below the first in the passage; and the first and second shutters (5, 6, 7, 8) are mechanically connected so that the first shutter (5, 6) closes before the second one (7, 8).

Abstract: The invention relates to a valve device of the cylinder valve type, comprising a filling coupling (11) connected directly to the inlet (2) of the valve without passing via the valve shut-off device (4, 8). A filtering element (12) is positioned in a chamber at the intersection between the inlet to the valve and the device for shutting-off the valve. This allows the filter to be arranged optimally from the accessibility point of view and also from the gas flow point of view. Specifically, the filter is arranged in the chamber in such a way as to filter the stream of gas flowing towards the outlet (3) of the valve via the shut-off device, thus protecting the latter, and also in such a way as not to filter the stream of filling gas flowing from the filling connector of the valve towards the inlet.

Abstract: A tap (10) for a gas cylinder has a non-sealing gate valve (44) positioned between an on/off valve (14) and a pressure reducer (18) of the tap. The gate valve (44) is normally in a position with a normal passage area. When the valve (14) is opened the gate valve (44) is rapidly moved by the pressurized gas towards a position with a limited passage area in order to reduce the shock wave applied to the pressure reducer (18). After the pressures on both sides of the gate valve (44) have been balanced, the gate valve returns to its position with a normal passage area.

Abstract: New amines having an anti-inflammatory and analgesic activity, represented by the formula: ##STR1## in which X represents a hydrogen or halogen atom such as chlorine, a cyanide or amino group of the formula ##STR2## in which R.sub.1 and R.sub.2 are each a hydrogen atom, or a lower alkyl group, or form with the nitrogen atom a saturated or unsaturated heterocyclic group at C.sub.5 or C.sub.6 which may contain a second hetero atom such as oxygen or nitrogen, n is equal to 1, 2 or 3 and may be equal to 0 when X represents a hydrogen atom, and their addition salts of pharmaceutically acceptable acids.Method of preparing the above compounds from 3-chloro 4-cyclohexyl acetophenone, which is transformed into 3-chloro 4-cyclohexyl.alpha.-methyl benzylamine, which is then condensed with an amine of the formula X--(CH.sub.2)n -- NH.sub.2, in which X and n are above defined.

Abstract: Hydrosoluble salts of paracetamol with an amine, in particular with a piperazine represented by the formula:- ##SPC1##(in which R.sub.1 and R.sub.2, which may be the same or different, are each a hydrogen atom or a lower alkyl group), and pharmaceutical compositions containing at least one of these salts as active ingredient in association with a physiologically acceptable aqueous medium, for example in orally administrable forms, such as effervescent compounds, soluble powders, syrups, or in parenterally administrable forms, such as injectable solutions, making it possible to administer high doses of paracetamol in aqueous solution.