Multistage tenter
US5129163A · kind A · utility
2Cited by
2References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 28, 1989 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Dec 28, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D15/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a multistage tenter with the right and left clip chains for conveying a belt-shaped film in a drying unit, a tensing mechanism operates to slide the supports of a pair of right and left sprockets engaged with the clip chains to tension the latter simultaneously, so that the shorter of the two clip chains is automatically tensioned more than the other, whereby the pitch error of the clip chains is absorbed, and the film is accordingly prevented from being wrinkled while being conveyed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.