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US 5,516,477 AGranted
Resin molding process utilizing a glass core
AssigneeFord Motor Company
InventorsCarl F. Johnson, Brenda M. Vyletel
Life of this patent
Estimating the term…
Abstract
A molded article is prepared by forming a glass core, treating the glass core to induce residual stresses therein, inserting the core into a mold, injecting resin into the mold, curing the resin, fracturing the core to produce glass particles, and removing the glass particles from the molded article.
Claims12
A process for molding an article, comprising:
- forming a glass core;
- treating the glass core to induce residual stresses therein;
- inserting the glass core into a mold;
- injecting resin into the mold;
- curing the resin to prepare a molded article;
- fracturing the glass core to form glass particles;
- and
- separating the glass particles from the molded article.
5 more elements
A process for molding an article, comprising:
- forming a glass core;
- tempering the glass core to induce residual stresses therein;
- overlaying the glass core with fibrous reinforcement;
- heating the glass core and fibrous reinforcement;
- inserting the glass core and fibrous reinforcement into a mold;
- injecting resin into the mold;
- curing the resin to prepare a molded article;
- fracturing the glass core to form glass particles;
- and
- separating the glass particles from the molded article.
7 more elements
Dependencies are inferred from the claim text.