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US 6,555,214 B1Granted
Resilient cushion
OwnerPaul M. Yatesinventor
Life of this patent
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Abstract
A method for making a resilient material includes providing a particulate polymer, discrete pieces of foam and a plasticizer. The polymer, foam pieces and plasticizer are mixed and disposed in a mold. The mold is heated to cause melting of the polymer without melting of the foam. After coating of the melted polymer, a heterogeneous resilient cushion is formed with gelated polymer surrounding the discrete foam pieces.
Claims4
The resilient cushion comprising:
- a first layer of gelated polymer;
- and
- a second layer comprising a heterogeneous mixture of gelated polymer, discrete pieces of foam and foaming agent, said gelated polymer surrounding each piece of foam, the foam being of closed cell structure and the discrete pieces of foam being sized to control resilient characteristics of the resilient cushion.
Dependencies are inferred from the claim text.