Abstract: The invention relates to a gel for separating and/or purifying a gas mixture comprising a metal cation, a porous support, a gelling agent and a solvent. Associated devices are also disclosed.

Abstract: A device for coupling an end of a hose to a member, comprises a body provided with an internal channel opening out into a chamber having quick-connection elements for connecting the end of the hose to the channel. The quick-connection elements comprise a washer with teeth disposed in the chamber and associated with a tubular disconnection pusher which is mounted to slide inside the chamber and which possesses a drive end projecting outside the body, and an opposite end for lifting the teeth. The device comprises protection elements for protecting the connection, which include a sleeve (18) possessing axially in succession: a connection portion (19) for connection to the body extending around the drive end; and a hose guide portion (20) which is secured to the connection portion via an end opposite from the body and which extends beyond the drive end coaxially with the internal channel.

Abstract: The invention concerns a tubular connection piece for a self-closing connecting device, comprising an end (3) to be connected to a member, externally provided with elements (5) for axially locking it in a housing of the connecting device, and internally equipped with a valve (33) mounted sliding relative to a valve seat (37) between closing and opening positions and a spring (40) interposed between a inner flange (41) of the connection piece and the valve to push the valve into its closing position against the valve seat. The invention also concerns a corresponding connection device.

Abstract: The invention concerns a tubular connection piece for a self-closing connecting device, comprising an end (3) to be connected to a member, externally provided with means (5) for axially locking it in a housing of the connecting device, and internally equipped with a valve (33) mounted sliding relative to a valve seat (37) between closing and opening positions and a spring (40) interposed between a inner flange (41) of the connection piece and the valve to push the valve into its closing position against the valve seat. The invention also concerns a corresponding connection device.

Abstract: A device for coupling an end of a hose to a member, comprises a body provided with an internal channel opening out into a chamber having quick-connection elements for connecting the end of the hose to the channel. The quick-connection elements comprise a washer with teeth disposed in the chamber and associated with a tubular disconnection pusher which is mounted to slide inside the chamber and which possesses a drive end projecting outside the body, and an opposite end for lifting the teeth. The device comprises protection elements for protecting the connection, which include a sleeve (18) possessing axially in succession: a connection portion (19) for connection to the body extending around the drive end; and a hose guide portion (20) which is secured to the connection portion via an end opposite from the body and which extends beyond the drive end coaxially with the internal channel.