Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Reexamination Certificate
2006-02-17
2010-06-01
Del Sole, Joseph S (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
C264S102000
Reexamination Certificate
active
07727433
ABSTRACT:
A hearing device including a foam, a foam insertable portion, a component, and a foam handle portion, and a method of forming the same. The component is nestable with and bondable with the foam such that the component is at least partially within the foam insertable portion and the foam handle portion. The hearing protective device includes earplugs attached to a flexible cord, under-the-chin element, or headband. A method of making a hearing protective device including disposing a component into a mold, introducing a foam or foamable mixture into the mold, causing the foam to rise such that the component is nested within and bonded with the foam.
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International Search Report; PCT/US01/44236; May 10, 2002.
Falco Robert N.
Hall James
Hall, legal representative Lori S.
Knauer Richard
Seville Alan R.
3M Innovative Properties Company
Del Sole Joseph S
Hanson Karl G.
Le Ninh V
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