Foam barrier heat shield
First Claim
1. A heat shield comprising a first metallic outer layer, a second metallic outer layer, and a foam layer disposed in between said first and second metallic outer layers, said first metallic outer layer having a thickness of 0.001-0.02 inches.
2 Assignments
0 Petitions
Accused Products
Abstract
A foam barrier heat shield is provided having a layer of foam adhesively disposed between opposing first and second metallic outer layers. The foam is expanded in between the outer layers and is adhesively formed to the outer layers without the use of a separate adhesive. In addition to shielding heat, the heat shield is effective as a noise barrier and is internally damped against vibration. In a preferred embodiment, the foam is a substantially rigid polyurethane foam that is sufficiently pliant to be bent to and accommodate a particular shape and contour to which the heat shield will conform in use, and it is reversibly deformable acoustical deflections.
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Citations
36 Claims
- 1. A heat shield comprising a first metallic outer layer, a second metallic outer layer, and a foam layer disposed in between said first and second metallic outer layers, said first metallic outer layer having a thickness of 0.001-0.02 inches.
- 24. A heat shield comprising a metallic outer layer, a semi-rigid foam layer made from a first foam material adhered to said metallic outer layer, and a foam layer absorber made from a second foam material, dissimilar to the first foam material, adhered to said semi-rigid foam layer opposite the metallic outer layer.
Specification