Patent ID: 11858179
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 14:
15. A thermally expanding mandrel, comprising:
an expanding material composition including thermally expanding particles and binder material; and
at least one surface feature that forms a corresponding surface feature on an interior surface of a component formed within a molding tool, the at least one surface feature including at least one of a protrusion, bump, indentation, or dimple and is defined by a variation in a wall thickness of the component;
wherein the thermally expanding mandrel is formed in a desired shape to expand and form the component including the corresponding surface feature on the interior surface of the component within the molding tool; and
wherein the expanding material composition is configured to at least one of fracture or dissolve to facilitate removal from the component.