Dual drive registration system
US5486254A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1993 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | Jan 21, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1707
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system of incrementally moving a foil, or other flexible and elastic elongated web, through a work station, by contacting and registering the foil on both sides of the work station. An example of such a work station is a hot stamping press that transfers optical images from the foil to other substrates. A drive mechanism, with an associated foil registration device, is provided at each of the entrance to the work station and the exit from it. Each registration device optically detects registration marks provided on the foil along its length, and is used to stop its associated drive mechanism after a predetermined number of marks have passed. This dual drive system maintains registration of the foil or other web throughout an extended work station. It is particularly advantageous for use with those hot stamping presses that either have a large number of die or whose multiple die are widely separated, since the multiple images carried along the foil are then all properly registered with the die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.