Abstract: A pressure recipient or vessel (1) has a polymeric impermeable liner (2) and a reinforcing layer (4) of a composite material externally formed around the impermeable liner (2), as well as at least one boss (5) coupled to the impermeable liner (2) and to the reinforcing layer (4) to provide an opening (6) of the pressure vessel (1). The impermeable liner (2) is joined to the boss (5) by a co-molded polymer-metal annular connection zone (7).

Abstract: A composite-material pressure vessel (1) has a wall (4) with a reinforcing layer (11) containing one or more reinforcing fibers, wherein the reinforcing layer is an electrical conductor, wherein the wall (4) forms an electrical capacitor (13) having a first plate formed of the reinforcing layer (11), a second plate formed of an electrically conductive layer (15) overlapping the dielectric layer (11), a dielectric layer (14) interposed between the reinforcing layer (11) and the electrically conductive layer (15), as well as electrical terminals (19, 20) connected to the first and the second plates. The vessel control method and system perform electrical tests on the capacitor to derive information about the wall (4) structural condition.

Abstract: A pressure recipient or vessel (1) has a polymeric impermeable liner (2) and a reinforcing layer (4) of a composite material externally formed around the impermeable liner (2), as well as at least one boss (5) coupled to the impermeable liner (2) and to the reinforcing layer (4) to provide an opening (6) of the pressure vessel (1). The impermeable liner (2) is joined to the boss (5) by a co-molded polymer-metal annular connection zone (7).

Abstract: Pressure vessel (1) with a gas-impermeable liner (2) and a reinforcing layer (4) in composite material formed externally around the impermeable liner (2), as well as at least one boss (5) coupled to the impermeable liner (2) and to the reinforcing layer (4), wherein between the impermeable liner (2) and the boss (5) a polymeric sealing mass (7) is arranged bound to both the impermeable liner (2) and to the boss (5) by means of in situ cross-linking of the sealing mass (7).

Abstract: A method for making a gas-tight container (1) in elastomeric material comprises: providing two or more separate elastomeric portions (2, 3), cleaning and/or roughening the gluing surfaces (6) of the gluing edges (5), applying an adhesive (7) onto the previously cleaned, degreased and/or roughened gluing surfaces (6), assembling the portions (2, 3) to form the container (1) and inserting between the gluing surfaces (6) a raw elastomeric tape (8) not yet cured, applying a cold pressure on the overlapped gluing edges (5), heating the overlapped gluing edges (5) to thermally activate the curing of the raw tape (8), cooling the gluing areas.

Abstract: Pressure vessel (1) with a gas-impermeable liner (2) and a reinforcing layer (4) in composite material formed externally around the impermeable liner (2), as well as at least one boss (5) coupled to the impermeable liner (2) and to the reinforcing layer (4), wherein between the impermeable liner (2) and the boss (5) a polymeric sealing mass (7) is arranged bound to both the impermeable liner (2) and to the boss (5) by means of in situ cross-linking of the sealing mass (7).

Abstract: A composite-material pressure vessel (1) has a wall (4) with a reinforcing layer (11) containing one or more reinforcing fibres, wherein the reinforcing layer is an electrical conductor, wherein the wall (4) forms an electrical capacitor (13) having a first plate formed of the reinforcing layer (11), a second plate formed of an electrically conductive layer (15) overlapping the dielectric layer (11), a dielectric layer (14) interposed between the reinforcing layer (11) and the electrically conductive layer (15), as well as electrical terminals (19, 20) connected to the first and the second plates. The vessel control method and system perform electrical tests on the capacitor to derive information about the wall (4) structural condition.