Patent ID: 11970978
Assignee: ROHR, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  F  Y | IPC F

Claim 0:
1. An acoustic panel comprising:
a front skin comprising a perforated skin portion and an imperforate skin portion, the perforated skin portion comprising a plurality of apertures;
a back skin; and
a core positioned between the front skin and the back skin, the core including:
at least one primary core portion comprising a honeycomb structure defining a plurality of cavities extending from the front skin to the back skin;
a transition portion defined by at least one curve of one or both of the front skin and the back skin, the front skin separated from the back skin by a distance and the distance is inconsistent within the transition portion along a span of the transition portion from a first transition portion end to a second transition portion end; and
a secondary core portion external to the at least one primary core portion and comprising a foam structure extending from the front skin to the back skin, the secondary core portion is disposed within the transition portion, the foam structure comprising a syntactic foam contacting the front skin, the back skin, and the at least one primary core portion;
wherein the perforated skin portion is coincident with the at least one primary core portion and the imperforate skin portion is coincident with the secondary core portion.