Abstract

A fibre composite cylindrical tank containing a pressurized fluid sealed by a boss seal, has at least one opening with diameter D0, and having an inner surface, sealed by a boss seal, wherein the boss seal includes a first boss section with diameter D1 larger than the opening diameter D0 and second boss section of diameter D0 equal to the opening diameter D0, and wherein the first section is leaned against the inner surface of the tank by the pressurized fluid, the second section fits the opening and a gasket of diameter D2 larger than the opening diameter D0 is placed on the second boss section.

IPC Classes  ?

• F17C 13/06 - Closures, e.g. cap, breakable member
• F17C 1/06 - Protecting sheatings built-up from wound-on bands or filamentary material, e.g. wires
• F17C 1/10 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for protection against corrosion, e.g. due to gaseous acid

Abstract

The invention relates to a method (100) for producing a fibre composite tank (60) for containing at least a fluid (30) and an equipment (10), the method comprising: a) a step (110) of assembling complementary portions (21, 22) of a liner (20) around the equipment (10) and/or maintaining support holding said equipment; b) a step (120) of sealing the complementary portions (21, 22) together, so as to form the liner (20) with the equipment stable inside said liner; c) a step (130) of introducing the fluid (30) into the liner (20) through openings (24) formed in said liner; and d) a step (150) of forming a shell layer (50) by winding a composite tape around the liner (20), said composite tape being made of a thermoset or thermoplastic composite material. The invention relates also to a fibre composite tank (60) for containing at least a fluid (30) and an equipment (10), produced by the method (100) and forming a unitary rigid structure able to withstand an overpressure of at least 2 bars.

IPC Classes  ?

• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
• B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
• F24D 3/10 - Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks

Abstract

A method for producing a fibre composite cylindrical tank for containing a fluid, includes assembling a reusable and removable tool kit; applying an end fitting to the tool kit, the end fitting having an opening large enough for removing the tool kit there through after being disassembled; forming a barrier layer by swaddling the assembled tool kit with a breather piece; forming a first shell layer by winding a first composite tape, made of a first composite material mixing fibre and resin, over the barrier layer, and disassembling and removing the tool kit through the opening.

IPC Classes  ?

• B29C 70/72 - Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
• B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core

Abstract

01000200 is placed on the second boss section.

IPC Classes  ?

• F17C 1/06 - Protecting sheatings built-up from wound-on bands or filamentary material, e.g. wires

Abstract

The invention relates to a method for the manufacture of a leak-tight vessel comprising a cylindrical mantle and two dome-shaped endings (3) for the storage of a gas and/or a liquid. The method comprises providing an inner barrier layer comprising a heat-sealable thermoplastic material and an outer shell layer comprising a fiber-reinforced heat-sealable thermoplastic material, as well as an end-fitting. Further, the method comprises providing an inner layer by winding a heat-sealable thermoplastic filament material and forming an outer layer in two steps: first providing around the mantle of the vessel a fabric of a fiber-reinforced heat-sealable material, whereby the width of the fabric diminishes with successive windings of the fabric around the mantle, followed by winding a fiber-reinforced heat-sealable plastic film over the fabric around the mantle and the dome-shaped endings (3). Hereupon the materials so provided are consolidated so a to form one rigid structure.

IPC Classes  ?

• B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
• B29C 53/82 - Cores or mandrels

Abstract

The present invention describes a method for producing a leak-tight vessel for holding a gas and/or liquid, comprising the steps of winding a heat-sealable thermoplastic barrier strip around a removable mandrel in such a way that each strip fragment overlaps with a substantially parallel strip fragment over at least a lateral overlapping distance, consolidating the overlapping strip fragments so as to form a gas and/or liquid tight layer, winding a fibrous material around the gas and/or liquid tight layer, thereby leaving an opening large enough for removing the mandrel. The invention also describes a leak-tight vessel produced in this way.

IPC Classes  ?

• B65D 3/00 - Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
• B29C 53/60 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
• F17C 1/02 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
• B29C 53/58 - Winding and joining, e.g. winding spirally helically
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29C 53/82 - Cores or mandrels
• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
• B29K 101/12 - Thermoplastic materials
• B29K 105/24 - Condition, form or state of moulded material cross-linked or vulcanised
• B29L 31/00 - Other particular articles

Abstract

The invention relates to an expansion tank with corresponding bladder. The bladder is flexible and pouch-like, is connected to a closing member for an air tight sealing to the expansion tank, and comprises inside a pipe, connected to at least one end of the bladder and the closing member. The expansion tank is made out of plastic. The compressed gas is in the bladder and the liquid is in the spacing between the bladder and the inside of the expansion tank. The expansion tank has an opening at its upper side, sealed by a closing member, that is sufficiently large to remove and reinstall the bladder and corresponding pipe easily in, resp. out of the expansion tank.

IPC Classes  ?

• F24D 3/10 - Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks

Abstract

The present invention describes a method for producing a leak-tight vessel for holding a gas and/or liquid, comprising the steps of winding a heat-sealable thermoplastic barrier strip around a removable mandrel in such a way that each strip fragment overlaps with a substantially parallel strip fragment over at least a lateral overlapping distance, consolidating the overlapping strip fragments so as to form a gas and/or liquid tight layer, winding a fibrous material around the gas and/or liquid tight layer, thereby leaving an opening large enough for removing the mandrel. The invention also describes a leak-tight vessel produced in this way.

IPC Classes  ?

• B29C 53/60 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
• B29C 53/62 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis
• B29C 53/58 - Winding and joining, e.g. winding spirally helically
• B65D 3/00 - Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
• B29C 53/82 - Cores or mandrels
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
• F17C 1/02 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
• B29K 101/12 - Thermoplastic materials
• B29K 105/24 - Condition, form or state of moulded material cross-linked or vulcanised
• B29L 31/00 - Other particular articles

Abstract

The present invention relates to a method for the manufacture of pressure-resistant gas and/or liquid tight containers made from thermoplastic materials. To this end the method comprises the following steps : providing a removable external mandrel around a neckpiece, followed by providing at the inside of such mandrel a thermoplastic material for the manufacture of a thermoplastic internal wall. Hereupon the external mandrel is removed and the thermoplastic internal wall is filled with a cooling liquid. Hereupon additional thermoplastic material is provided to the external side of the thermoplastic wall and is consolidated either during the provision hereof, or thereafter or both. Hereupon the cooling liquid is removed and the container is ready for being used.

IPC Classes  ?

• F17C 1/16 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
• F17C 1/06 - Protecting sheatings built-up from wound-on bands or filamentary material, e.g. wires
• B29C 35/16 - Cooling
• B29C 71/00 - After-treatment of articles without altering their shapeApparatus therefor
• B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor

Abstract

The present invention describes a method for producing a leak-tight vessel for holding a gas and/or liquid, comprising the steps of winding a heat-sealable thermoplastic barrier strip around a removable mandrel in such a way that each strip fragment overlaps with a substantially parallel strip fragment over at least a lateral overlapping distance, consolidating the overlapping strip fragments so as to form a gas and/or liquid tight layer, winding a fibrous material around the gas and/or liquid tight layer, thereby leaving an opening large enough for removing the mandrel. The invention also describes a leak-tight vessel produced in this way.

IPC Classes  ?

• B29C 53/60 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
• B29C 53/82 - Cores or mandrels
• B29C 63/26 - Lining or sheathing of internal surfaces
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
• F17C 1/16 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials

Abstract

Disclosed is a method for producing a leak- tight vessel (14) for holding a gas and/or liquid, comprising the steps of winding a heat - sealable thermoplastic barrier strip (60) around a removable mandrel (1) in such a way that each strip fragment overlaps with a substantially parallel strip fragment over at least a lateral overlapping distance, consolidating the overlapping strip fragments so as to form a gas and/or liquid tight layer (49), winding a fibrous material (12) around the gas and/or liquid tight layer (49), thereby leaving an opening (4) large enough for removing the mandrel (1). Further disclosed is a leak- tight vessel (14) produced in this way.

IPC Classes  ?

• B29C 53/60 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
• B29C 53/82 - Cores or mandrels
• F17C 1/16 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials