US 7,520,204 B2
Article comprising a composite cover
Robert B. Williams, Nottingham, Md. (US); and James A. Waicukauski, Bel Air, Md. (US)
Assigned to Lockheed Martin Corporation, Bethesda, Md. (US)
Filed on Oct. 28, 2004, as Appl. No. 10/975,895.
Prior Publication US 2006/0096449 A1, May 11, 2006
Int. Cl. F41F 3/04 (2006.01)
U.S. Cl. 89—1.817  [220/200; 220/203.08; 428/156; 428/158; 428/174] 22 Claims
OG exemplary drawing
 
1. An article comprising a cover, wherein said cover comprises:
a first layer comprising a unitary structural member having a dome shape, wherein the structural member is not scored; and
a second layer comprising an impact-resistant, closed-cell foam suitable for protecting the first layer from physical strikes from an ambient environment; wherein:
(a) said second layer overlies and is bonded to said first layer; and
(b) said second layer comprises a plurality of discrete segments.