Apparatus for stacking thin flexible objects
US4440388A · kind A · utility
21Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1981 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Sep 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1912
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for stacking thin objects which are delivered by a conveyor to a rotary drum having holes over its periphery extending to the interior and a fixed body within the interior having a plurality of chambers communicating with the holes over a half circumference. Valves connecting to the chambers are operated to successively connect the chamber to a vacuum source so the object is engaged and rotated with the drum and then to successively connect to a pressure source to produce a blowing action moving the object toward a stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.