Patent ID: 11926109
Assignee: RTX CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 16:
17. A method of manufacturing a composite vessel assembly comprising: placing a liner in a first pre-form fixture prior to filling with a first granulated material; filling a first chamber defined by liner with granulated material through an orifice in the liner; applying a vacuum to the first chamber; plugging the orifice; enveloping the liner with a layer for structural rigidity, wherein the liner lines and is in contact with the layer, wherein the liner is flexible and collapsible without the layer; curing the layers before relieving the vacuum from the first chamber; and relieving the vacuum, wherein the layer adheres to an outer layer of the liner, and the layer becomes structurally rigid and maintains a shape of the liner, and wherein the composite vessel is configured to store a pressurized fluid in a cavity formed by an interior surface of the liner after curing.