.~ Plate or block being apertured, notched, or truncated in shape
DEFINITION
Classification: 366/340
Plate or block being apertured, notched, or truncated in shape:
(under subclass 338) Subject matter wherein the deflector is a disk or solid body extending across the path and having an opening therethrough or an edge portion out away or indented so as to permit portions of the material to pass through.