Flexible coverstock semi-rigid foam void test mold

Details Flexible coverstock semi-rigid foam void test mold Flexible coverstock semi-rigid foam void test mold

1991-10-21

1993-10-12

Woo, Jay H.

Static molds

Mold including core and means to remove core

Plural cores

249 83, 249121, 249125, 249176, 249DIG4, B22D 1900

Patent

active

052518663

ABSTRACT:
A test mold assembly for evaluating the surface deformation tendency of a coverstock bonded to a reactive plastic formulation to voids in the formulation including a base adapted to support a coverstock and spaced side walls extending upwardly from the base to define a mold cavity for receiving foam precursors. The assembly further includes a lid adapted to form the top of the mold cavity and having a cover portion disposed spaced from the base. The lid includes a plurality of integral projections extending downwardly from the cover portion into the mold cavity a predetermined distance to create voids in the foam. A method of making a foam void model for evaluating the surface deformation tendency of a coverstock bonded to a reactive plastic formulation to voids in the formulation is also disclosed.

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patent: 4806094 (1989-02-01), Rhodes, Jr. et al.
patent: 4936762 (1990-06-01), Gaudreau et al.

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