Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – With internal application of fluid pressure
Reexamination Certificate
2005-05-10
2005-05-10
McDowell, Suzanne E. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
With internal application of fluid pressure
C425S130000
Reexamination Certificate
active
06890477
ABSTRACT:
A method and system for producing hollow rib structures for trim components and panels using gas assisted injection molding. Spring biased movable insert members are provided in the mold cavity, particularly at the ends of the structural rib members. After the plastic material is injected into the mold cavity, gas is introduced into the rib members in order to provide hollow channels therein. The displaced resin material forces the insert members to the full cavity positions and completes the formation of the molded plastic article.
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Homann Gregory A.
Turczynski David
Bill Panagos, Esq.
Lear Corporation
McDowell Suzanne E.
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