Process for producing engraved markings on a material in the manufacture of a flexible tube
US5238642A · kind A · utility
30Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1991 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Sep 27, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/302
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing markings or lines engraved on a sheet or a tubular piece (6) made of plastic material or multi-layered metal-plastic material less than 1 mm in thickness, in which the sheet or piece (6) is gripped between a tool (1) bearing one or more marking contour(s) (2, 3) and a resilient support (9), in order to produce the engraved markings or lines. The sheet or piece (6) is at less than 50.degree. C. during the gripping stage, and in the resilient support (9) has a Shore hardness D of between 70 and 120, the markings or lines obtained being produced by plastic deformation with elastic return.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.