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

Claim 0:
1. A method of manufacturing a composite vessel assembly comprising: placing a first liner in a first pre-form fixture prior to filling with a first granulated material; filling a first chamber defined by the first liner with the first granulated material through a first orifice in the first liner; applying a vacuum to the first chamber; plugging the first orifice; enveloping the first liner with a first layer for structural rigidity, wherein the first liner lines and is in contact with the first layer, and wherein the first liner is flexible and collapsible without the first layer; curing the first layer before relieving the vacuum from the first chamber; and relieving the vacuum, wherein the first layer adheres to an outer layer of the first liner and maintains a shape of the first liner after the vacuum is relieved, wherein the first layer becomes structurally rigid before relieving the vacuum from the first chamber within the first liner, and wherein the composite vessel is configured to store a pressurized fluid in a cavity formed by an interior surface of the first liner after curing.