| US 7,462,314 B2 | ||
| Multiple-material injection molding | ||
| Murray Feick, Kitchener (Canada) | ||
| Assigned to Mold-Masters (2007) Limited, Georgetown, Ontario (Canada) | ||
| Filed on Feb. 24, 2005, as Appl. No. 11/65,136. | ||
| Claims priority of provisional application 60/546983, filed on Feb. 24, 2004. | ||
| Claims priority of provisional application 60/584126, filed on Jul. 01, 2004. | ||
| Prior Publication US 2005/0184430 A1, Aug. 25, 2005 | ||
| Int. Cl. B29C 45/16 (2006.01) | ||
| U.S. Cl. 264—255 [264/245; 264/278; 264/328.7; 264/334] | 14 Claims |
| 1. A method of injection molding a molded article, comprising the steps of:
providing a closed mold having a mold cavity;
creating an enclosed barrier molding portion within the mold cavity;
injecting a barrier material into the barrier molding portion to create a barrier;
configuring the mold while the mold remains closed such that the barrier is located in a barrier receiving portion and isolates
a first empty zone of the mold cavity from a second empty zone of the mold cavity, the barrier having a portion that is located
between the first and second empty zones and a further portion that is raised above and partially overlaps each of the first
and second empty zones;
injecting a first material into the first empty zone; and
injecting a second material into the second empty zone.
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