Stock material or miscellaneous articles – Sheet including cover or casing – Including elements cooperating to form cells
Patent
1994-01-21
1996-03-05
Epstein, Henry F.
Stock material or miscellaneous articles
Sheet including cover or casing
Including elements cooperating to form cells
156197, 156292, 428116, 428131, 4285428, B32B 312
Patent
active
054966108
ABSTRACT:
A moldable panel having a predetermined shape for cushioning and protecting protrusions and areas including a flexible elastomeric thermoplastic honeycomb panel and a rigid thermoplastic plate. The honeycomb panel has a honeycomb core formed of undulated strips of resilient thermoplastic material, thermal compression bonded together to form cell walls defining a plurality of contiguous regularly shaped cells. The core has a first face formed by a first extremity of the cell walls and a second face formed by a second extremity of the cell walls. The core is maintained in its expanded configuration so that it can be used to anisotropically flex to stabilize and spread the load experienced by a user of the moldable panel. The core is bonded to a first surface of the rigid thermoplastic plate. The plate is heated to a first temperature which is sufficient to mold or form the plate into the desired shape, but insufficient to melt the bonds formed between the honeycomb panel and the plate, and the bonds between the strips of the honeycomb panel. The second face of the honeycomb panel is heated to a second temperature, lower than said first temperature, to relieve stresses built up in the panel as the plate is being molded.
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Landi Curtis L.
Wilson Susan L.
Epstein Henry F.
Hamrick Claude A. S.
Supracor Systems, Inc.
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