Method for cooling thin cores in plastic molds
US11504885B2 · kind B2 · utility
0Cited by
3References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 12, 2017 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | May 29, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2341/062
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for cooling a mold used in the production of plastic parts is described. A capillary feeds liquid carbon dioxide to a channel present in the mold typically used in making plastic parts having thin gaps or thin open sections in the plastic part. The channel will be approximately the same size as the inner diameter of the capillary but will increase in size either stepwise or progressively as it passes through the mold, particularly at the location where cooling is desired therefore providing more effective cooling to the mold and slides and lifters present therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.