Rotary stacker and method
US5000436A · kind A · utility
5Cited by
15References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1990 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Feb 26, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A rotary stacker and method wherein a stream of web units such as napkins is advanced along a longitudinally extending path in longitudinally spaced relation toward and over a magazine, each napkin being pressed into the magazine by cams applying pressure at a plurality of longitudinally spaced areas over the magazine and orienting the cams so as to remove the pressure on the upstream cam just prior to the entry of the leading edge of a unit subsequent to the one being pressed and while maintaining the pressure on the previously pressed unit by the downstream cams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.