Water regulated temperature controlled resin drying
US10525615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2018 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jun 12, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B2200/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus and method for drying thermoplastic resin prior to molding into plastic parts comprises a continuous loop liquid circuit for furnishing liquid at a prescribed temperature to a mold in which the plastic parts are fabricated; a continuous loop air circuit for passing heated dry air through a hopper containing the thermoplastic resin thereby drying the thermoplastic resin to a prescribed level of dryness; and a coupling thermally connecting the two circuits for heat transfer from the liquid to the drying air; the liquid is selected from the group comprising water and ethylene glycol; microprocessor control facilitates generation and retention of custom water temperature and resin dryness/temperature optionally based on machine learning principles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.