公开(公告)号：US20220196208A1

公开(公告)日：2022-06-23

申请号：US17603976

申请日：2020-04-28

Applicant: Covess N.V.

Inventor： Tony Vanswijgenhoven

IPC: F17C1/16 ,  B29C53/60

Abstract: The invention relates to a method for the manufacture of a leak-tight vessel comprising a cylindrical mantle and two dome-shaped ends 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.

公开(公告)号：US20250027607A1

公开(公告)日：2025-01-23

申请号：US18708442

申请日：2022-11-08

Applicant: ARKEMA FRANCE ,  COVESS

Inventor： Gilles HOCHSTETTER ,  Thibaut SAVART ,  Arthur BABEAU ,  Axel SALINIER ,  Tony VANSWIJGENHOVEN ,  Johan DE CLIPPELEIR

IPC: F17C1/16 ,  B32B5/28 ,  B32B27/12 ,  B32B27/34

Abstract: A tank comprising a multi-layer structure, for storing compressed gas, including in succession from inside to outside at least the three following layers: at least one sealing layer of a composition including at least one semi-crystalline thermoplastic polyamide having a Tm of less than or equal to 280° C., at least one intermediate composite reinforcing layer of a fibrous material in the form of continuous fibres impregnated with a composition including at least one semi-crystalline thermoplastic polyamide having a Tg of less than 100° C., at least one outer composite reinforcing layer of a fibrous material in the form of continuous fibres impregnated with a composition including at least one polyphthalamide having a Tg of greater than 80° C., the outermost sealing layer being welded to the innermost intermediate composite reinforcing layer and the outermost intermediate composite reinforcing layer being welded to the innermost outer composite reinforcing layer.

公开(公告)号：US11299312B2

公开(公告)日：2022-04-12

申请号：US16408570

申请日：2019-05-10

Applicant: Covess N.V.

Inventor： Tony Vanswijgenhoven ,  Dieter Vanswijgenhoven ,  Axel Seifert

IPC: B65D3/00 ,  B29C53/60 ,  F17C1/02 ,  B29C53/58 ,  B29C70/08 ,  B29C53/82 ,  B29C70/86 ,  B29K101/12 ,  B29K105/24 ,  B29L31/00

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.

公开(公告)号：US20240280224A1

公开(公告)日：2024-08-22

申请号：US18567645

申请日：2022-06-03

Applicant: L’AIR LIQUIDE, SOCIETE ANONYME POUR L’ETUDE ET L’EXPLOITATION DES PROCEDES GEORGES CLAUDE ,  COVESS NV

Inventor： Tony VANSWIJGENHOVEN ,  Philippe PAPIN

IPC: F17C13/06 ,  F17C1/06 ,  F17C1/10

CPC classification number: F17C13/06 ,  F17C1/06 ,  F17C1/10 ,  F17C2201/0109 ,  F17C2205/0305 ,  F17C2260/053

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.

公开(公告)号：US20230415435A1

公开(公告)日：2023-12-28

申请号：US18334032

申请日：2023-06-13

Applicant: L'AIR LIQUIDE SOCIÉTÉ ANONYME POUR L'ÉTUDE ET L'EXPLOITATION DES PROCÉDÉS GEORGES CLAUDE, ,  COVESS NV

Inventor： Philippe PAPIN ,  Tony VANSWIJGENHOVEN

IPC: B29C70/72 ,  B29C70/32

CPC classification number: B29C70/72 ,  B29C70/32 ,  B29K2101/12

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.