Apparatus for forming at least one fold line pattern in a rigid plastic material
US5183672A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 16, 1991 |
| Grant date | Feb 2, 1993 |
| Priority date | — |
| Expiry date | Apr 16, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/0385
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is an apparatus for making a substantially rigid plastic material having at least one fold line pattern with a series of generally parallel grooves, wherein preferably groove depth increases from the outside to the middle of the pattern. The apparatus includes a frame, a conveyor system for moving the plastic material along a linear path, a feeder situated at an upstream end of the conveyor system and adapted to position the plastic material on the conveyor system, a heater situated downstream of the feeder adapted to heat the area to be embossed with the fold line pattern to a temperature sufficient to form the fold line pattern, and an embosser having a knurled flat roller and a cooperating embossing roller having a series of ridges suitable for embossing the fold pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.