Apparatus and method of forming curved extruded products
US5424023A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Jun 3, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2791/006
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention has several aspects: an extrusion apparatus, a method of making a curved extrusion, and a curved extrusion made by the method. In broadest terms, the apparatus of the present invention comprises: (1) an extruding means, typically an extruder, adapted to produce an extrudate having a cross-section; (2) a plurality of guide members arranged so as to form a curvilinear path through which the extrusion is passed, each of the guide members having an aperture having substantially the same shape as the cross-section of the extrusion, whereby the plurality of guide members are adapted to form the extrusion into a curved shape while maintaining the cross-section of the extrusion; and (3) mechanical means adapted to conduct the extrusion through said plurality of guide members, such as an extrusion puller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.