INJECTION-MOLDING APPARATUS
Patent
·
OSTI ID:4343399
This patent is drawn to an injection molding apparatus for producing a tube closed at one end wherein the normally unsupported end of the core located in the cavity during the injection of the molten material to fill the space between the core and cavity wall, which supporting means is automatically removed from operation during the forming of the closed end of the tube. This support means is a plug extending through the end of the core into a recess in the bottom of the cavity where the closed end of the tube is to be formed. The plug is spring pressed into said recess and is forced out of the recess by a slidable bushing at the top of the cavity which is moved against the force of the spring by the molten material when it fills the uppormost open end portion of the cavity, thereby permitting the closed end of the tube to be formed.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-12-010266
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2822578
- OSTI ID:
- 4343399
- Country of Publication:
- United States
- Language:
- English
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