Abstract: A device for facilitating and strengthening a penile erection consisting of a resilient ring which is deformable during the sexual act so as to act as a one-way valve due to tilting action to maintain blood pressure within the penis. The device is generally toroidal and is manufactured from a flexible material.

Abstract: A device for facilitating and strengthening a penile erection consisting of a resilient ring which is deformable during the sexual act so as to act as a one-way valve due to tilting action to maintain blood pressure within the penis. The device is generally toroidal and is manufactured from a flexible material.

Abstract: The invention concerns a device for pressing packs or bulk containers for recuperating liquids, in particular milk or fruit juice, which they contain. The inventive device is essentially characterised in that it comprises, in combination, a support plate (3), whereon are set the packs to be pressed (4), adapted to take up a high position for pressing the stacked packs (4) and a low position for pressuring the containers; a pressing plate (1), driven in a vertical reciprocating movement, adapted to press said packs or containers and means (2) adapted to delimit, with the plate (1) and the plate (3), a closed volume during the entire pressing phase. The means 82) is a sliding skirt, urged to be supported on the plate (3) when the packs (4) are pressed and a tank, delimited in its base by the plate (3), when the bulk containers are pressed.

Abstract: A dejuicing press has a cylindrical main pressing chamber defined by a cylindrical dripping grate. A composite piston arrangement is used in the chamber which includes an internal piston surrounded by an external annular piston. Separate drives are provided for the two pistons so that they can be moved together or separately in the same direction or in opposite directions to effect the various stages of a pressing cycle. The press may also have a pre-pressing chamber which feeds the main pressing chamber and in which a pre-pressing piston operates, and a transfer chamber at one end of the pre-pressing chamber in which there is a third piston.

Abstract: A cylindrical, rotary and self-emptying vat for mixing and extracting materials contained therein combines a removal gutter (5) with one or two peripheral pick-up helical slopes (6 and 4) depending on whether the vat is horizontal or not. A racking orifice (7) is situated in one of the end walls of the vat near its axis. The invention is applicable to vinification, salting or curing, etc., as a fermentation accelerator or as a mixer.