Patent ID: 11891163
Assignee: SUPRA LUMINA TECHNOLOGIES INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. A duct, comprising:
a housing including at least:
a hollow interior;
an outer surface,
an inner surface, the inner surface being spaced at a distance from the outer surface to define a duct thickness;
a first leading edge at an inlet end of the duct, and
a discharge end of the duct,
the housing defining a flow axis between inlet and discharge ends; and

a portion with a thickness being smaller than the duct thickness, the portion including at least the inner surface of the housing, an outer surface of the portion, and a second leading edge, the outer surface of the portion being offset inwardly from the outer surface of the housing, the second leading edge being disposed at a distance from the first leading edge along the flow axis and toward the discharge end, the portion extending from the second leading edge toward the discharge end.