GEORGE E QUIGLEY
Accountancy in Bellevue, WA
License number
Massachusetts 3312
Expiration Date
Jun 30, 1983
Type
Certified Public Accountant
Address
Address
Bellevue, WA 98004
Professional information
Continuously Wound Filament Structure For Use In Noise Attenuation Element
US Patent:
4600619, Jul 15, 1986
Filed:
Dec 31, 1984
Appl. No.:
6/687905
Inventors:
Wan T. Chee - Bellevue WA
George W. Quigley - Bellevue WA
George W. Quigley - Bellevue WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
B32B 312
US Classification:
428118
Abstract:
An engine inlet sound diffusion structure for use with a turbofan engine is constructed of nonmetallic composite materials. An inner perforated skin of the diffuser is made up of continuously wound composite material filaments. A honeycomb core is sandwiched between the inner porous skin and a nonporous outer skin also comprised of continuously wound filaments. The perforations in the inner skin are formed directly in the skin by programmed placement of the filaments during the winding process. The formation of the perforations can be assisted by the use of a mandrel having spikes formed on its outer surface.