Scrap recovery and feed system
US4014462A · kind A · utility
28Cited by
5References
11Claims
0Family size
Inventor
Key dates
| Filing date | Nov 5, 1975 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | Nov 5, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A scrap recovery and feed system wherein scrap plastic is recovered from a plastic manufacturing process, such as in the manufacture of sheet, film, formed or molded objects, and the scrap plastic is chopped up and fed back to the processing machine along with the base material, such as a virgin plastic material and various additives. The scrap is fed with an auger from an upper hopper toward the outlet opening of a lower hopper containing the base material. The materials are mixed just prior to entry in the extruder or other processing machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.