Method and apparatus for automatically placing sheets of plastic from a roll onto the second top tier of a lumber package
US6138438A · kind A · utility
2Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1998 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Jul 6, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H20/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for automatically placing lengths of poly sheet from a roll of poly sheet onto the second-from-the-top tier of a lumber package includes a poly roll holder, and a plurality of grip clamps. The grip clamps may have rubber pads for improved friction when gripping the POLY sheet. The gripping clamps are mounted on a carriage which is in turn mounted on a trolley. The trolley is selectively translated back and forth over an exposed tier in a stack of lumber. The gripping clamps grasp the free end of the poly sheet so that the ploy sheet is drawn over the exposed tier as the trolley is translated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.