Abstract: A system for sensing at least one characteristic parameter of a tyre fitted to a vehicle includes a movable unit and a fixed unit. The movable unit is combined with the tyre and includes a device for sensing the at least one characteristic parameter, a device for transmitting a signal out of the tyre that relates to the at least one characteristic parameter, and a device for generating electrical energy. The fixed unit is combined with the vehicle and includes a device for receiving signals from the movable unit. The electrical energy generating device is capable of supplying electrical energy to the sensing device and to the transmitting device. The electrical energy generating device includes a capacitor that charges itself with electrical energy in response to mechanical stresses applied to the tyre. The movable unit and a vehicle wheel are also disclosed.

Abstract: An airtight pouch or packaging (10,20) made of synthetic material for the preservation of food products (12) is obtained by sealing (13, 14, 15) and cutting said synthetic material by an automatic packaging machine with a horizontal or vertical motioning of the product. The packaging (10,20) is constituted by a single peelable type film (11) consisting of an oriented polyamide layer coupled with a coextruded peelable polyethylene layer, the film being folded once on the polyethylene layer side in order to form the inner part of the packaging.

Abstract: An airtight pouch or packaging (10, 20) made of synthetic material for the preservation of food products (12) is obtained by sealing (13, 14, 15) and cutting said synthetic material by an automatic packaging machine with a horizontal or vertical motioning of the product. The packaging (10, 20) is constituted by a single peelable type film (11) consisting of an oriented polyamide layer coupled with a coextruded peelable polyethylene layer, said film being folded once on the polyethylene layer side in order to form the inner part of said packaging.