Externally adjustable insert for extrusion manifold
US7264461B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2005 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Dec 23, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA21C11/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Externally adjustable extrusion insert for a multiple-orifice extrusion manifold. Adjustments to an extrusion insert precisely controls the extrusion path leading to one or more extrusion orifices of the manifold. Each insert is adjusted to reduce or eliminate variations in extrudate exit velocity among orifices in the extrusion manifold. Precisely tuned inserts provide extruded products of uniform length. Choke plates controlling the flow of extrudate to each orifice. Choke plates are manipulated with an externally adjustable cam. Such adjustment compensates for variations in temperature, pressure, surface properties, geometric variations, and other conditions which may affect extrudate flow rates through the orifices and extrusion manifold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.