Film leader and arrangement for coupling film to leader
US5652941A · kind A · utility
3Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Dec 5, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D3/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A coupling structure capable of coupling films to a leader with high reliability. The leader has a leader body formed with first holes and second holes in its rear with respect to the feed direction of the leader. Sheet members having fingers or protrusions are provided on the leader body so that the fingers extend across the respective first holes. Films having holes formed in its leading end, are coupled to the leader body by inserting their leading ends through second holes and then into the first holes until the fingers engage in the holes formed in the films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.