Turning bar with selectively openable air discharge openings
US5520317A · kind A · utility
25Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Apr 5, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2406/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An adjustable turning bar for a material web is provided with an adjustably positionable tube that has a plurality of compressed air discharge openings. A slide tube is disposed within the turning bar tube and is also provided with a plurality of air openings. The slide tube is shiftable axially within the turning bar tube to align selected ones of the slide tube's air openings with the appropriate compressed air discharge openings on the turning bar. Air openings not being used will be closed off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.