Patent ID: 11904532
Assignee: IMPOSSIBLE OBJECTS, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. A sheet feeder apparatus for a composite-based additive manufacturing (CBAM) system comprising:
a frame constructed to contain a stack of substrate sheets;
a movable tamp located above the frame that can be lowered to contact the top one of the stack of substrate sheets, said tamp having a felt bottom surface configured to adhere to a topmost substrate sheet upon contact;
a plurality of edge flickers protruding above corners of said topmost substrate sheet;
further comprising a brush constructed to periodically brush the tamp to prevent fiber matting;
wherein, when the tamp is raised, the edge flickers bend the corners of the topmost substrate sheet downward causing any sheets below said topmost sheet adhering to the topmost sheet to separate from the topmost sheet.