Drool control apparatus and method
US6348171B1 · kind B1 · utility
16Cited by
12References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1999 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | May 11, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/322
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A drool control apparatus having a piston disposed in a melt passage of a mold. The piston is moveable between a bypass position, where pressurised melt is permitted to flow past the piston to at least one nozzle, and a compression position, where the melt downstream of the piston is decompressed to inhibit drool at the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.